Weather in Tokyo for September 2025
So far, September 2025 in Tokyo is slightly warmer than the historical average by 0.8 °C.
Expect cooler weather in the next days in Tokyo with the forecast suggesting a temperature of 27.1 °C, lower than the historical average.
In general, the average temperature in Tokyo at the beginning of September is 28.9 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 26.6 °C by the end of September.
Tokyo experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 180.5 mm.
Is September a good time to visit Tokyo? check out the best time to travel to Tokyo page.
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Tokyo Weather September
What’s the Weather Like in Tokyo This September?
Temperatures trend during September in Tokyo
September weather in Tokyo day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 30° /25° | 2.9 mm | 7 | |
| 2 Sept. |  Moderate or heavy rain shower | 29° /24° | 11.4 mm | 7 | |
| 3 Sept. | Moderate or heavy rain shower | 29° /23° | 11.1 mm | 6 | |
| 4 Sept. |  Light rain shower | 27° /22° | 20.7 mm | 6 | |
| 5 Sept. |  Partly cloudy | 28° /23° | 16.5 mm | 7 | |
| 6 Sept. | Patchy rain possible | 29° /24° | 0.4 mm | 6 | |
| 7 Sept. | Partly cloudy | 30° /23° | 2.5 mm | 7 | |
| 8 Sept. | Moderate or heavy rain shower | 28° /23° | 31.6 mm | 6 | |
| 9 Sept. | Patchy rain possible | 29° /23° | 12 mm | 6 | |
| 10 Sept. | Partly cloudy | 30° /24° | 3 mm | 7 | |
| 11 Sept. | Light rain shower | 29° /23° | 2.1 mm | 6 | |
| 12 Sept. | Partly cloudy | 29° /23° | 4.1 mm | 7 | |
| 13 Sept. | Patchy rain possible | 30° /24° | 0.3 mm | 7 | |
| 14 Sept. | Sunny | 32° /27° | 0 mm | 1.3 | |
| 15 Sept. | Patchy rain possible | 31° /26° | 2.3 mm | 1.2 | |
| 16 Sept. | Patchy rain possible | 31° /26° | 4.9 mm | 1.6 | |
| 17 Sept. | Patchy rain possible | 32° /27° | 0.2 mm | 1.6 | |
| 18 Sept. | Patchy rain possible | 34° /24° | 3.2 mm | 1.8 | |
| 19 Sept. |  Heavy rain | 21° /20° | 20 mm | 5 | |
| 20 Sept. |  Moderate rain | 20° /19° | 7.6 mm | 4 | |
| 21 Sept. | Patchy rain possible | 22° /19° | 4 mm | 5 | |
| 22 Sept. | Partly cloudy | 25° /19° | 0 mm | 6 | |
| 23 Sept. | Patchy rain possible | 24° /21° | 2.6 mm | 5 | |
| 24 Sept. | Patchy rain possible | 22° /20° | 2.3 mm | 5 | |
| 25 Sept. | Patchy rain possible | 27° /21° | 0.3 mm | 5 | |
| 26 Sept. | Patchy rain possible | 30° /24° | 0.3 mm | 6 | |
| 27 Sept. | Patchy rain possible | 29° /25° | 0.4 mm | 6 | |
| 28 Sept. | Patchy rain possible | 27° /20° | 2 mm | 6 | |
| 29 Sept. | Partly cloudy | 25° /20° | 3.4 mm | 6 | |
| 30 Sept. | Patchy rain possible | 26° /21° | 5.2 mm | 6 | |
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Tokyo weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 31°/26° | 28°/23° | 22°/16° |
| Rainfall | 186 mm | 180 mm | 147 mm |
| Wind | 23 km/h | 22 km/h | 21.7 km/h |
| Humidity | 68% | 68% | 60% |
| Rainy days | 24 days | 23 days | 24 days |
| Dry days | 7 days | 7 days | 7 days |
Planning a trip to Tokyo? Discover the best time to visit
Tokyo in September - FAQ
What to pack to Tokyo in September?
As you prepare for your trip to Tokyo in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Tokyo, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Tokyo
UV exposure in Tokyo during September
Quick links
Where is Tokyo?Get accurate weather forecasts for Tokyo, located at latitude 35.69 and longitude 139.692. Stay updated with localized weather information tailored for Tokyo.