Japan Okinawa Weather in September — Climate Guide
September in Okinawa is high
September is high for Okinawa.
Typhoon peak. Hotels reasonable. Korean Chuseok shoulder.
Travel score
Okinawa September Weather Stats
Avg High
30°C
Avg Low
25°C
Rainy Days
12
260mm total
Sunshine
7h
Daily avg
Humidity
78%
high
UV Index
10
Very high
Wind
18 km/h
Gusts 40
Sea Temp
28°C
perfect
Crowds
Busy
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
12 μg/m³
PM10
22 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
33°C
Nighttime
26°C
Humidity and wind affect how the actual temperature feels.
Wind
18 km/h
Max gust 40 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Hotels reasonable
- Korean Chuseok
- Beach still good
Cons
- Typhoon peak
- Rainy 12 days
September Events & Festivals
- Korean Chuseok shoulder
- Typhoon peak
Okinawa in September — Full Picture
Typhoon peak. Hotels reasonable. Korean Chuseok shoulder.
What to Wear & What to Pack
Warm subtropical + typhoon.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
23.7°C
18.3°C
12/mo
Summer (Jun·Jul·Aug)
30.3°C
25.3°C
11/mo
Autumn (Sep·Oct·Nov)
Current27.7°C
22.7°C
9.7/mo
Winter (Dec·Jan·Feb)
19.7°C
14.7°C
11/mo
Okinawa Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 19° | 14° | 11d·110mm | 5h | 67% | 4 | Busy | Shoulder | |
| 19° | 14° | 12d·120mm | 5h | 70% | 5 | Busy | Shoulder | |
| 21° | 16° | 12d·160mm | 6h | 73% | 6 | Busy | Shoulder | |
| April (Best) | 24° | 18° | 11d·165mm | 6h | 75% | 7 | Very busy | Peak |
| May (Best) | 26° | 21° | 13d·230mm | 6h | 78% | 9 | Very busy | Peak |
| 29° | 24° | 13d·245mm | 6h | 81% | 10 | Busy | Shoulder | |
| 31° | 26° | 9d·140mm | 8h | 79% | 11 | Very busy | Peak | |
| 31° | 26° | 11d·240mm | 7h | 79% | 11 | Very busy | Peak | |
| 30° | 25° | 12d·260mm | 7h | 78% | 10 | Busy | Shoulder | |
| October (Best) | 28° | 23° | 9d·165mm | 7h | 73% | 8 | Very busy | Peak |
| November (Best) | 25° | 20° | 8d·110mm | 6h | 70% | 6 | Busy | Shoulder |
| 21° | 16° | 10d·105mm | 5h | 67% | 4 | Busy | Peak |
View Other Months
Okinawa September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Okinawa?
Okinawa in September is high. Tourist crowds are busy and flight/hotel prices are shoulder.
What's the average temperature in Okinawa in September?
Okinawa September averages a high of 30°C and a low of 25°C.
Does it rain much in Okinawa in September?
Okinawa September averages 260mm of rainfall over about 12 rainy days.
What should I wear in Okinawa in September?
Warm subtropical + typhoon.
What time are sunrise and sunset in Okinawa in September?
Okinawa September sunrise is 06:15 and sunset is 18:40, with 12h 25min of daylight.
What's the air quality like in Okinawa in September?
Okinawa September air quality (AQI) averages 35, rated Good. PM2.5 averages 12μg/m³.
What activities are recommended in Okinawa in September?
In September, Okinawa is great for Beach, Kerama Islands, Snorkeling.
Is September peak season in Okinawa?
Okinawa September crowds are busy and prices are shoulder. Advance reservations are strongly recommended.
Best Months to Visit Okinawa
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.