Okinawa Weather in September
Japan · 30-year monthly averages
⚠️ Challenging time to visit
September in Okinawa is hot, with average daytime highs around 31°C (87°F) and nighttime lows near 26°C (78°F). Expect roughly 275mm of precipitation spread over about 12 rainy days, and heavy rainfall is common — this is peak wet season territory.
Avg high
31°C
87°F
Avg low
26°C
78°F
Rainfall
275mm
very wet
Rainy days
12
days with ≥1mm
☀️ About 181 hours of sunshine over the month (~6h/day).
🎒 What to pack
- breathable summer clothing
- sunscreen, hat and sunglasses
- refillable water bottle
- compact umbrella or rain jacket
September vs the rest of the year
FAQ
- How hot is Okinawa in September?
- September in Okinawa is hot, with average daytime highs around 31°C (87°F) and nighttime lows near 26°C (78°F). Expect roughly 275mm of precipitation spread over about 12 rainy days, and heavy rainfall is common — this is peak wet season territory.
- Does it rain a lot in Okinawa in September?
- Okinawa sees around 275mm of precipitation in September on average — very wet by global standards.
- Is September a good time to visit Okinawa?
- September is a challenging month to visit Okinawa weather-wise — plan around the conditions.