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Okinawa, Japan · Tropical

Okinawa in August: go or not?

Mixed period. Okinawa in August: 5.1/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 26.33°N · 127.80°E
⚡ This month's verdict
Why not
Okinawa · August
5.1
27–30°
Temperature
45%
Rain
7h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Pavlo Klein via Unsplash
The month in detail

What to expect in August

In the height of summer, Okinawa sees high temperatures (30°C). Heat is a factor for outdoor activities. Expect rain on 45% of days — a light raincoat in the bag is recommended.

August ranks 10 out of 12 months in Okinawa.

This month's conditions

What it's like in August

UV index
8 · very high
protection essential
Feels like
oppressive heat
25°
Sea
29°C
warm, ideal
Daylight
12.9h of daylight
Air quality
good
AQI 28
Compare

Is August the right month?

The best month in Okinawa is October (8.3/10), 3.2 pts higher than August.

See October →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Okinawa

GetYourGuide selection · free cancellation

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Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Japan

🗣️LanguageJapanese
💶CurrencyYen japonais (¥)
🚗DrivingLeft-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘ+0.61°C/decade
🔥Hottest monthJuly · 30°C
❄️Coolest monthJanuary · 19°C
🌧️Rainiest month ⓘJune · 49%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Location

Where is Okinawa ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Japan
Tropical climate with a 8.3 → 4.9 gap between best and worst month. 10 years of ERA5 data to choose by project.
26.33°N · 127.80°E
Questions

Frequently asked questions

What is the best time to visit Okinawa?
October is the best month with 28.0°C highs, 24.0°C lows, 6.6h of sunshine and 29.0% rainy days. The months of October & November offer comparable conditions.
How many hours of sunshine does Okinawa get in October?
Okinawa averages 6.6 sunshine hours per day in October. It is the sunniest month with a climate score of 7.8/10.
What is the rainiest month in Okinawa?
September is the most unfavourable month with September has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Okinawa in October?
In October, overnight lows reach 24.0°C, while afternoon highs average 28.0°C.
Is Okinawa good in winter?
In winter (December-February), Okinawa scores 7.1/10 on average — Decent period conditions for cultural visits.. The best month overall remains October with a score of 7.8/10.
When should you avoid Okinawa?
September is the most difficult month to visit Okinawa, with September has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Okinawa in August?
In August, the sea averages 29°C in Okinawa: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Okinawa in August?
The average UV index reaches 8 in August in Okinawa (very high), with about 12.9h of daylight. Protection essential.