Japan · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Tokyo are April, May and October, when daytime temperatures are agreeable and rainfall is relatively low.
Tokyo sees its warmest weather in August, when daytime highs average around 31°C, and its coolest in January (around 10°C).
Annual precipitation totals roughly 1598mm — October is typically the wettest month (~235mm) and February the driest (~57mm).
A distinctly wetter period runs from March to October — worth planning around if you prefer dry days.
January is the sunniest month, with about 193 hours of sunshine.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 61 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 10° / 1°C | 60mm | 🤔 Fair |
| February | 11° / 2°C | 57mm | 🤔 Fair |
| March | 14° / 5°C | 116mm | 🤔 Fair |
| April | 19° / 10°C | 134mm | 👍 Good |
| May | 24° / 15°C | 140mm | 👍 Good |
| June | 26° / 19°C | 168mm | 👍 Good |
| July | 30° / 22°C | 156mm | 🤔 Fair |
| August | 31° / 24°C | 155mm | 🤔 Fair |
| September | 28° / 20°C | 225mm | 🤔 Fair |
| October | 22° / 15°C | 235mm | 👍 Good |
| November | 17° / 9°C | 96mm | 👍 Good |
| December | 12° / 4°C | 58mm | 🤔 Fair |
January in Tokyo is chilly, with average daytime highs around 10°C (50°F) and nighttime lows near 1°C (34°F). Expect roughly 60mm of precipitation spread over about 5 rainy days, with little rainfall.
☀️ About 193 hours of sunshine over the month (~6h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
February in Tokyo is chilly, with average daytime highs around 11°C (52°F) and nighttime lows near 2°C (36°F). Expect roughly 57mm of precipitation spread over about 5 rainy days, with little rainfall.
☀️ About 170 hours of sunshine over the month (~6h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
March in Tokyo is mild, with average daytime highs around 14°C (58°F) and nighttime lows near 5°C (41°F). Expect roughly 116mm of precipitation spread over about 9 rainy days, and this is one of the wetter months.
☀️ About 175 hours of sunshine over the month (~6h/day).
🎒 What to pack — light jacket · layers for cool evenings · compact umbrella or rain jacket
April in Tokyo is pleasantly warm, with average daytime highs around 19°C (67°F) and nighttime lows near 10°C (50°F). Expect roughly 134mm of precipitation spread over about 10 rainy days, and this is one of the wetter months.
☀️ About 179 hours of sunshine over the month (~6h/day).
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
May in Tokyo is pleasantly warm, with average daytime highs around 24°C (74°F) and nighttime lows near 15°C (58°F). Expect roughly 140mm of precipitation spread over about 10 rainy days, and this is one of the wetter months.
☀️ About 180 hours of sunshine over the month (~6h/day).
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
June in Tokyo is warm, with average daytime highs around 26°C (79°F) and nighttime lows near 19°C (65°F). Expect roughly 168mm of precipitation spread over about 12 rainy days, and this is one of the wetter months.
☀️ About 124 hours of sunshine over the month (~4h/day).
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
July in Tokyo is warm, with average daytime highs around 30°C (86°F) and nighttime lows near 22°C (72°F). Expect roughly 156mm of precipitation spread over about 11 rainy days, and this is one of the wetter months.
☀️ About 151 hours of sunshine over the month (~5h/day).
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
August in Tokyo is hot, with average daytime highs around 31°C (88°F) and nighttime lows near 24°C (74°F). Expect roughly 155mm of precipitation spread over about 8 rainy days, and this is one of the wetter months.
☀️ About 174 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 in Tokyo is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 20°C (69°F). Expect roughly 225mm of precipitation spread over about 11 rainy days, and heavy rainfall is common — this is peak wet season territory.
☀️ About 127 hours of sunshine over the month (~4h/day).
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
October in Tokyo is pleasantly warm, with average daytime highs around 22°C (72°F) and nighttime lows near 15°C (59°F). Expect roughly 235mm of precipitation spread over about 11 rainy days, and heavy rainfall is common — this is peak wet season territory.
☀️ About 129 hours of sunshine over the month (~4h/day).
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
November in Tokyo is mild, with average daytime highs around 17°C (62°F) and nighttime lows near 9°C (48°F). Expect roughly 96mm of precipitation spread over about 7 rainy days, with a moderate amount of rain.
☀️ About 150 hours of sunshine over the month (~5h/day).
🎒 What to pack — light jacket · layers for cool evenings
December in Tokyo is chilly, with average daytime highs around 12°C (54°F) and nighttime lows near 4°C (39°F). Expect roughly 58mm of precipitation spread over about 5 rainy days, with little rainfall.
☀️ About 174 hours of sunshine over the month (~6h/day).
🎒 What to pack — jacket or coat · long-sleeve layers