Weather Forecasts and Temperatures for Oahu, Hawaii (Honolulu) | How to Check 2-Week and 10-Day Forecasts, and Why Forecasts Sometimes Miss the Mark

Check before you travel!
Weather Forecast for Oahu (Honolulu), Hawaii

Oahu, Hawaii is warm year-round, but the weather is surprisingly changeable, and brief rain showers are possible.

Especially in Honolulu, it is not unusual for squalls to suddenly arrive even when the weather is clear.

Before traveling, it is important to refer to the 2-week and 10-day forecasts, but also check for last-minute updates.

In this issue, we will discuss the different seasons on Oahu.Weather and temperatureand spring, summer, fall, and winter.What to wear and bringThe following is a list of the following

Click here for popular Hawaii tours↓

Oahu / Japanese Guide / 5-8 hours private tour] Same price for up to 6 people! Luxury Hawaii Trip☆Private tour to North Shore by luxury car 《Pickup and Drop-off》（No.21)開始時間Negotiable所要時間Approximately 6 hours (can be adjusted depending on tour content)45,500 yen

Oahu / Japanese Guide / 1 Day] Many repeaters keep coming back! Complete Tour of Popular Spots on Oahu Island with Night View of Tantalus Hill (No.17)開始時間7:30-19:30所要時間Approx. 7 hours19,000 yen

Oahu/Japanese guide/5-8 hours private tour] VIP experience☆Tour by luxury car! Private tour to enjoy the best view and gastronomy in Hawaii 《Pickup and drop-off available》（No.20)開始時間Negotiable所要時間Approximately 6 hours (can be adjusted depending on tour content)45,500 yen

Click here to see the ranking of popular plans in Hawaii.

Hawaii (Honolulu) Weather Forecast
How to check [2 weeks, 10 days, 1 month

Before traveling to Hawaii, you will want to check the local weather carefully.

especiallyHonolulu weather is changeable.Therefore, it is important to use the "2-week, 10-day, and 1-month forecasts" in different ways.

Click here for Honolulu sightseeing tours↓

Oahu/Japanese Guides/Chartered Tours】Request OK☆Enjoy your own original tour! Oahu Sightseeing Charter Tour (No.5)開始時間Negotiable所要時間Negotiable14,500 yen

Oahu / Japanese Guide / Private Tour] For first time visitors to Hawaii! Exclusive guide☆Complete private tour (No.18)開始時間Negotiable所要時間8 hours75,000 yen

Oahu / Japanese Guide / 1 Day] Pink Pillbox, a hot topic on SNS, + Photo Spot Tour in Ward Kakaako (with sea turtle watching) (No.3)開始時間8:00-14:00所要時間Approx. 7 hours17,800 yen

Popular Honolulu Sightseeing Tour Plans
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Different forecast sites have different contents?
Which sites are "hit" sites?

When you are looking up weather forecasts, you may find that they are very different from site to site.... This is because each site uses a different weather model.

Therefore, do not make a decision based on one site alone, but rather on "AccuWeather," "tenki.jp," etc.It is recommended to compare multiple forecasts.It is.

Also, in an area like Hawaii, where local weather changes are frequent, "rain = all day long" does not always mean rain.

Rain mark even for short squallsTherefore, it is necessary to be careful how to read the forecast.

Why is the Hawaii weather forecast
They say, "It won't hit you."?

The reason why Hawaii's weather forecast is said to be "inaccurate" is due to the characteristics of the weather.

Especially on an island like Oahu,Weather changes in a short period of time due to the influence of topography and windI will do so.

Furthermore, weather forecasts often indicate "rain" if there is even a slight chance of rain, making it easier to feel "off" even on days that are actually sunny.

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Does Hawaii Have Fewer Typhoons? An in-depth look at hurricane season and weather forecast reliability.What’s the Deal with Typhoons and Hurricanes in Hawaii? In Hawaii, the phenomenon equivalent to a typhoon in Japan is called a “hurricane.” Both are meteorological phenomena resulting from the development of a tropical cyclone, but their names differ depending on the ocean region where they form. The climate is warm year-round, and the weather is relatively stable […]

Showers" (rain showers) unique to Hawaii

Essential to understanding Hawaii's weather is the presence of "showers.

A shower is rain that falls in short bursts and stops immediately.Stops after a few minutes to 30 minutesOften, the weather will be fine afterwards, as if nothing had happened.

Therefore, on a trip to Hawaii,Folding umbrella or light rainwearIt is recommended that you act on the assumption that the weather is basically fine, while having

By Season] Oahu, Hawaii
Weather, Clothing, and What to Bring

So without further ado, let's take a look at the weather and temperatures for each season on Oahu, as well as recommended clothing and what to bring!

Click here for popular Hawaii tours↓

Oahu/Japanese speaking guide/4.5 hours] Tour of popular sightseeing spots Kailua Town and Lanikai Beach (heavenly ocean) recommended for first time visitors to Hawaii (No.13)開始時間7:30-12:15所要時間Approx. 4 hours and 45 minutes7,500 yen

Oahu/Japanese speaking guide/1 hour] A panoramic view of Honolulu♪ Tour to see the night view of "Tantalus Hill," a must-see sightseeing spot in Honolulu (No.6)開始時間20:00-21:00所要時間Approx. 1 hour4,800 yen

Oahu / Japanese Guide / 1 Day] If you are in doubt, this is the tour for you! North Shore Beach Horseback Riding Experience & Haleiwa Walking Tour ☆Supplemented with shopping, gourmet food, sea turtle watching, and more☆ (No.4)開始時間7:00 - 15:00所要時間Approx. 8 hours43,500 yen

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Spring on Oahu (March - May)

Hawaii's seasons can be divided into two main categories.

October through March is the winter, known as the rainy season, and April through September is the summer, known as the dry season.

The spring time is the dry season,Best SeasonIt is also said that

Spring Weather and Temperatures

Spring on Oahu is very much like spring on the island of Oahu, with precipitation decreasing as we approach April and temperatures warming up for summer.Comfortable seasonÂ

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Oahu/5.5 hours] Hanauma Bay Snorkeling ☆Small Group Plan ☆Including lesson by Japanese instructor 《Pickup and drop off, Underwater photo gift》 (No.37)開始時間6:30-11:15 / 11:30-15:45所要時間Approx. 4-5.5 hours18,470 yen

Oahu / Japanese Guide / 4 hours] Exhilarating morning snorkeling tour ☆ Enjoy private time at a secluded beach〈Comes with underwater photo gift & pickup & drop-off〉（No.31開始時間6:30~10:30所要時間Approx. 4 hours26,000 yen

Oahu/5.5 hours] Hanauma Bay Snorkeling Charter Plan with Japanese speaking guide 《Pickup and drop off, underwater photo included》（No.41）.開始時間6:30-11:15 / 11:30-15:45所要時間Approx. 4-5.5 hours90,060 yen

Snorkeling
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What to wear and bring

During warm days, a half-sleeve and shorts are sufficient. However,Morning and evening are coldA light cardigan or hoodie is a good idea.

↓Click here for more articles on the spring season.

Can You Swim in Hawaii (Oahu) in March? A Comprehensive Guide to Temperatures, the Rainy Season, What to Wear, and How to Enjoy Your TripWhat’s March like on Oahu? March on Oahu, Hawaii, marks the period just before the dry season begins, when the weather is very stable. It’s also when the Honolulu Festival—one of Hawaii’s largest events—takes place, attracting many tourists from around the world! In this article […]

Travel Guide to Oahu, Hawaii in April｜Guideline for climate, clothing, and travel expensesSpring Has Arrived! April on Oahu: As the rainy season ends and the dry season begins, April on Oahu brings more sunny days, marking the start of a season when you can fully enjoy the beach and outdoor activities. Find out more about what April has in store for Oahu […]

A Comprehensive Guide to Hawaii (Oahu) in May! From Climate and Temperatures to What to Wear and Recommended Sightseeing Spots!Oahu, Hawaii's Most Popular Resort Island Oahu, the third largest of the Hawaiian Islands, is home to 80% of Hawaii's population. Although there are other islands that are visited by tourists, such as Hawaii and Maui, Oahu is by far the most popular [...].

Summer on Oahu (June-August)

In summer, there are many sunny days, and you can take an exploration tour of the ocean by kayak or a snorkeling experience where you can swim with sea turtles,Beach ActivitiesThis is the season when there is an abundance of

Click here for sea turtle tours in Hawaii ↓

Oahu / Japanese Guide / 1 Day] Pink Pillbox, a hot topic on SNS, + Photo Spot Tour in Ward Kakaako (with sea turtle watching) (No.3)開始時間8:00-14:00所要時間Approx. 7 hours17,800 yen

Oahu/Japanese Guide/Morning】Cruise off Waikiki & Honolulu City Tour☆Peek into the world of the sea! Glass Boat Exciting Experience (No.24)開始時間8:30-12:30所要時間Approx. 4 hours19,800 yen

Oahu/Japanese Guide/1 Day] Tour of Spectacular Spots☆East Coast of Oahu & North Shore Sightseeing Tour with Sea Turtle Watching (No.7)開始時間8:00-15:00所要時間Approx. 7 hours19,800 yen

Sea Turtle Tour
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Summer Weather and Temperatures

Oahu in the summer.Full-blown dry seasonEnter the

The area is characterized by the cool and dry summer heat during the daytime and warm nights, and fireworks displays and other events are held.

Check out these popular marine activities below↓

North Shore Shark Adventure: See sharks in the wild up close and personal (Transportation available) (v-149)開始時間The "M" in "M" is a combination of "M" and "A":所要時間The "M" in "M" is a combination of "M" and "A":

Oahu/Marine Activity/30 min】Hawaii Kai Experience! Exhilarating Jet Ski (V-137)開始時間The "M" in "M" is a combination of "M" and "A":所要時間The "M" in "M" is a combination of "M" and "A":

Oahu / Popular Marine Activities / Half Day] 2 to 3 Marine Sports Package Banana Boat + Bumper Tube + Snorkeling Experience (v-172)開始時間The "M" in "M" is a combination of "M" and "A":所要時間The "M" in "M" is a combination of "M" and "A":

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Oahu / Japanese Guide / 5 hours] Experience diving in Waikiki! Includes transportation, No license required〉 Recommended for beginners and children (No.36)開始時間10:00-15:00所要時間Approx. 5 hours35,000 yen

Oahu / Japanese Guide / 4 hours] Enjoy a refreshing morning in the crystal-clear waters of West Oahu with a small group skin diving experience♪Swim freely in a bare water environment (transportation included, underwater photo gift) (No.33)開始時間06:30-10:30所要時間Approx. 4 hours23,000 yen

Oahu / Japanese Guide / 5 hours] Wreck & Shallow Water 2 Dive Experience! Fun diving with a Japanese guide (License required, private parties available) for beginners to advanced divers (No.35)開始時間Advanced: 7:00-12:00
Beginners: 10:00-15:00所要時間Approx. 5 hours35,000 yen

Click here for our most popular diving packages

What to wear and bring

Summer is a great time to wear light clothing during the day and at night. It's the best time to play on the beach,swimsuitDon't forget to prepare a

↓Click here to read our recommendations for the summer season.

Is it inexpensive to travel to Oahu, Hawaii in June? The value of going during Japan's rainy season, weather and clothing.A Comprehensive Guide to Oahu, Hawaii in June: Are you fed up with the muggy weather and cloudy skies of Japan’s rainy season? If so, sunny, dry Oahu is the perfect getaway! June on Oahu offers stable weather, making it the best time of year to fully enjoy the ocean and sightseeing […]

A Comprehensive Guide to Hawaii (Oahu) in July! From Climate and Temperatures to What to Wear and Recommended Sightseeing Tours!Oahu, Hawaii's most popular resort island Oahu is home to 80% of Hawaii's population. It is home to Honolulu, the state capital, and Honolulu Airport, which connects to destinations around the world. Oahu is visited daily by a steady stream of tourists from all over the world, and is Hawaii's [...].

Oahu] Summer is in full swing! Summer Vacation! August in Oahu, HawaiiOahu, Hawaii’s Most Popular Resort Destination. When you arrive in Hawaii as a tourist, the islands you’ll actually visit are limited. There’s the nature-rich Big Island, the laid-back island of Maui, and Oahu, which serves as your base. Oahu is the gateway connecting Hawaii to the world, and […]

Oahu Autumn (September to November)

After the peak summer season, the number of tourists decreases in autumn,Season of quietIt is.

Popular destinations such as Manoa Falls and the Lanikai TrailhikingYou can also enjoy the course...

Click here for popular hiking tours↓

Oahu/Japanese Guide/4.5 hours] Special Saturday-only tour! Let's visit popular spots efficiently☆Diamond Head Hiking & Honolulu Sightseeing Tour (No.12)開始時間7:30-12:15所要時間Approx. 4 hours and 45 minutes9,400 yen

Oahu/Hiking/Half Day] Manoa Falls Hiking Tour with Organic Lunch (v-148)開始時間The "M" in "M" is a combination of "M" and "A":所要時間The "M" in "M" is a combination of "M" and "A":

Oahu/ Marine Sports/ Half Day] Diamond Head Sunrise Hiking + Parasailing Experience (v-142)開始時間The "M" in "M" is a combination of "M" and "A":所要時間The "M" in "M" is a combination of "M" and "A":

Autumn Weather and Temperatures

The entire island of Oahu is lush and green in the fall, and the cooler weather is ideal for hiking.

September-October.Aloha Festivalwill also be held!

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Hawaii Oahu Trekking Course Recommendations! Beginner to Advanced Popular Courses & Clothing Guide Oahu, Hawaii: A Hiker’s Paradise Oahu is a “hiker’s paradise” packed with a diverse array of natural landscapes, including the ocean, mountains, and tropical rainforests. What’s more, every trail offers breathtaking views unique to Hawaii—from the ocean and cityscapes to waterfalls and jungles […]

What to wear and bring

Autumn is warmer in temperature, but there is more precipitation than in summer,rain gearIt is safe to prepare a

If you enjoy hiking,Hiking shoes or leisure set, ,Warm clothing and water bottle for hydrationPrepare also for

↓Click here to read our recommendations for the fall season.

A Comprehensive Guide to Hawaii (Oahu) in September! From the Climate and Temperatures to What to Wear and Recommended Sightseeing Spots!Oahu, Hawaii’s Most Popular Resort Destination. If you’re planning a trip to Hawaii, Oahu is usually your base. It offers easy access to the international airport in Honolulu, the state capital, and, with Waikiki at its center, features resort developments that are a delight for tourists, making it a comfortable place to stay […]

A Comprehensive Guide to Hawaii (Oahu) in October! From Climate and Temperatures to What to Wear, Recommended Beaches, and Activities!What’s Oahu Like? Oahu is the most popular island in Hawaii. Thanks to its easy accessibility, it’s famous for attracting many tourists from Japan. Oahu’s appeal lies not only in its shopping and delicious cuisine, but also in its history and culture […]

A Comprehensive Guide to Hawaii (Oahu) in November! From Climate and Temperatures to What to Wear and Recommended Sightseeing Spots!Oahu: Hawaii’s Most Popular Resort Destination What would you like to enjoy when you visit Hawaii? Sightseeing, shopping, dining, and activities. Oahu—Hawaii’s most popular island—is the perfect place to do it all! Developed as a resort destination […]

Winter on Oahu (December - February)

Winter on Oahu is a time of competition and competitions for surfers from all over the world.whale watchingUnique to winter, such asA season full of activitiesIt is.

Christmas and New Year's events will also be held!

Click here for dolphin and whale watching tours↓

Oahu/Japanese Guide/Morning】Cruise off Waikiki & Honolulu City Tour☆Peek into the world of the sea! Glass Boat Exciting Experience (No.24)開始時間8:30-12:30所要時間Approx. 4 hours19,800 yen

Dolphin & Whale Watching + Snorkeling by Catamaran with Buffet Lunch (Oahu/Japanese guide/6 hours)開始時間6:00-13:00 / 10:00-17:00所要時間Approx. 6 hours39,800 yen

Whale-watching tours are
this way (direction close to the speaker or towards the speaker)

Winter Weather and Temperatures

Unlike Japan, winters on Oahu are mild.

However, compared to spring and summer, there are more rainy days and the mornings and evenings are a little colder.Rain gear and warm clothingPrepare a

What to wear and bring

Even in winter, you can wear shorts and a shorts during the day.

You can also go swimming in the sea.So, don't forget to prepare your swimsuit!

During this season, there are also activities that can be enjoyed at night, such as stargazing,Hoodies and long pantsPrepare warm clothing such as

↓Click here to read our recommendations for the winter season.

A Guide to December in Hawaii (Oahu) | Enjoy Christmas to the Fullest! A Roundup of December Events, Temperatures, and AttractionsWhat’s December like on Oahu, Hawaii? When you think of December in Japan, you probably imagine cold weather and snow, right? But on Oahu, Hawaii, December is a pleasant time of year with warm weather! Plus, there are Christmas and New Year’s events […]

January in Hawaii (Oahu): Weather, What to Wear, and Recommended Activities | Tips for a Successful TripWhat’s January like on Oahu, Hawaii? January on Oahu falls during the rainy season, which is one of the most pleasant times to visit in Hawaii. That said, it’s not a cold winter like in Japan—instead, the comfortable climate lets you enjoy that signature Hawaiian warmth♪ In Hawaii, this […]

Is February the best season on the Big Island of Hawaii? A simple explanation of the climate, attractions, and recommended experiences.What’s it like on the Big Island in February? While February is the middle of winter in Japan and considered the off-season for travel nationwide, it’s actually the perfect time to enjoy the Big Island! Activities like whale watching and stargazing—which you can only enjoy during the winter season […]

Weather forecast for Oahu, Hawaii
Frequently Asked Questions (FAQ)

summary

How was it? In this article, we have introduced the weather and temperature for each season on Oahu, as well as recommended clothing and what to bring!

Although Oahu is always in summer throughout the year, the changing climate makes it possible to see a variety of sights on the island.A unique way to enjoy the seasoncan be done.

If you are considering a trip to Oahu, please check out our other articles...

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Top 10 Shopping Centers on Oahu, Hawaii | From Famous Malls to the Latest Facilities and Popular SouvenirsA Comprehensive Guide to Shopping Centers on Oahu, Hawaii Oahu is home to Honolulu, Hawaii’s largest city, and the city boasts a wide variety of shopping options. Other towns also feature numerous unique shops, allowing you to enjoy sightseeing and shopping at the same time […]

Hawaii Oahu Sightseeing Model Course Guide｜Introducing the most popular sightseeing spots ranking & the best way to get around without wasting time.The Ultimate Guide to Traveling in Hawaii! Sample Itineraries for Oahu Based on Length of Stay Oahu is by far the most popular island in Hawaii. Packed with attractive tourist spots like Waikiki, Diamond Head, and the North Shore, it’s known for being easy to explore, even for first-time visitors […]

20 Recommended Activities in Hawaii | A Comprehensive Guide to Everything from Classic Tours on Oahu and in Honolulu to the Latest TrendsEnjoy activities on Oahu, Hawaii, surrounded by nature! Oahu is one of the most popular resort islands in Hawaii, attracting visitors from all over the world. Surrounded by beautiful ocean and lush nature, you can experience the charm of Hawaii in its fullest [...].