Japan · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Okinawa are January, November and December, when daytime temperatures are agreeable and rainfall is relatively low.
Okinawa sees its warmest weather in July, when daytime highs average around 32°C, and its coolest in January (around 20°C).
Annual precipitation totals roughly 2161mm — June is typically the wettest month (~284mm) and January the driest (~102mm).
A distinctly wetter period runs from February to December — worth planning around if you prefer dry days.
July is the sunniest month, with about 227 hours of sunshine.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 20° / 15°C | 102mm | 👍 Good |
| February | 20° / 15°C | 115mm | 👍 Good |
| March | 22° / 17°C | 143mm | 👍 Good |
| April | 24° / 19°C | 161mm | 👍 Good |
| May | 27° / 22°C | 245mm | 🤔 Fair |
| June | 30° / 25°C | 284mm | 🤔 Fair |
| July | 32° / 27°C | 188mm | ⚠️ Challenging |
| August | 32° / 27°C | 240mm | ⚠️ Challenging |
| September | 31° / 26°C | 275mm | ⚠️ Challenging |
| October | 28° / 24°C | 179mm | 🤔 Fair |
| November | 25° / 20°C | 119mm | 👍 Good |
| December | 22° / 17°C | 110mm | 🌟 Great |
January in Okinawa is pleasantly warm, with average daytime highs around 20°C (68°F) and nighttime lows near 15°C (59°F). Expect roughly 102mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 93 hours of sunshine over the month (~3h/day).
🎒 What to pack — light layers · comfortable walking shoes
February in Okinawa is pleasantly warm, with average daytime highs around 20°C (68°F) and nighttime lows near 15°C (59°F). Expect roughly 115mm of precipitation spread over about 10 rainy days, and this is one of the wetter months.
☀️ About 93 hours of sunshine over the month (~3h/day).
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
March in Okinawa is pleasantly warm, with average daytime highs around 22°C (71°F) and nighttime lows near 17°C (62°F). Expect roughly 143mm of precipitation spread over about 11 rainy days, and this is one of the wetter months.
☀️ About 115 hours of sunshine over the month (~4h/day).
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
April in Okinawa is pleasantly warm, with average daytime highs around 24°C (76°F) and nighttime lows near 19°C (66°F). Expect roughly 161mm of precipitation spread over about 10 rainy days, and this is one of the wetter months.
☀️ About 121 hours of sunshine over the month (~4h/day).
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
May in Okinawa is warm, with average daytime highs around 27°C (81°F) and nighttime lows near 22°C (72°F). Expect roughly 245mm of precipitation spread over about 11 rainy days, and heavy rainfall is common — this is peak wet season territory.
☀️ About 138 hours of sunshine over the month (~5h/day).
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
June in Okinawa is warm, with average daytime highs around 30°C (86°F) and nighttime lows near 25°C (77°F). Expect roughly 284mm of precipitation spread over about 11 rainy days, and heavy rainfall is common — this is peak wet season territory.
☀️ About 160 hours of sunshine over the month (~5h/day).
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
July in Okinawa is hot, with average daytime highs around 32°C (89°F) and nighttime lows near 27°C (81°F). Expect roughly 188mm of precipitation spread over about 9 rainy days, and this is one of the wetter months.
☀️ About 227 hours of sunshine over the month (~8h/day).
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
August in Okinawa is hot, with average daytime highs around 32°C (89°F) and nighttime lows near 27°C (80°F). Expect roughly 240mm of precipitation spread over about 12 rainy days, and heavy rainfall is common — this is peak wet season territory.
☀️ About 206 hours of sunshine over the month (~7h/day).
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
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.
☀️ 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
October in Okinawa is warm, with average daytime highs around 28°C (83°F) and nighttime lows near 24°C (74°F). Expect roughly 179mm of precipitation spread over about 9 rainy days, and this is one of the wetter months.
☀️ About 163 hours of sunshine over the month (~5h/day).
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
November in Okinawa is warm, with average daytime highs around 25°C (77°F) and nighttime lows near 20°C (69°F). Expect roughly 119mm of precipitation spread over about 8 rainy days, and this is one of the wetter months.
☀️ About 122 hours of sunshine over the month (~4h/day).
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
December in Okinawa is pleasantly warm, with average daytime highs around 22°C (71°F) and nighttime lows near 17°C (62°F). Expect roughly 110mm of precipitation spread over about 9 rainy days, and this is one of the wetter months.
☀️ About 107 hours of sunshine over the month (~4h/day).
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket