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Weather in Tokyo for September 2025

Your guide to Tokyo weather in September - trends and predictions
  • In general, the average temperature in Tokyo at the beginning of September is 30.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.7 °C by the end of September.

  • Expect significant rainfall in Tokyo during September, with an average of 16 rainy days.

  • Is September a good time to visit Tokyo? check out the best time to travel to Tokyo page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/24°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Tokyo in September average weather

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Temperatures trend during September in Tokyo

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
31° /26° 1 mm 8
2 Sept. Sunny
Sunny
32° /26° 1.1 mm 8
3 Sept. Light rain
Light rain
30° /24° 18.2 mm 7
4 Sept. Light rain shower
Light rain shower
28° /23° 35.9 mm 6
5 Sept. Partly cloudy
Partly cloudy
31° /24° 1.4 mm 8
6 Sept. Patchy rain possible
Patchy rain possible
31° /26° 0.8 mm 8
7 Sept. Partly cloudy
Partly cloudy
31° /26° 1 mm 8
8 Sept. Light rain shower
Light rain shower
28° /24° 70 mm 6
9 Sept. Light rain shower
Light rain shower
31° /24° 8.2 mm 7
10 Sept. Partly cloudy
Partly cloudy
31° /25° 2.6 mm 8
11 Sept. Light rain shower
Light rain shower
30° /26° 0.9 mm 7
12 Sept. Partly cloudy
Partly cloudy
31° /26° 0.3 mm 8
13 Sept. Sunny
Sunny
32° /26° 0.1 mm 8
14 Sept. Sunny
Sunny
31° /26° 0.1 mm 8
15 Sept. Overcast
Overcast
32° /26° 0.1 mm 7
16 Sept. Patchy rain possible
Patchy rain possible
30° /25° 7.4 mm 7
17 Sept. Light rain shower
Light rain shower
31° /26° 0.4 mm 8
18 Sept. Sunny
Sunny
32° /27° 0.5 mm 8
19 Sept. Sunny
Sunny
32° /27° 1.7 mm 8
20 Sept. Patchy light drizzle
Patchy light drizzle
32° /27° 1.1 mm 8
21 Sept. Patchy rain possible
Patchy rain possible
31° /25° 0.2 mm 7
22 Sept. Light rain shower
Light rain shower
30° /23° 9.4 mm 6
23 Sept. Light rain shower
Light rain shower
23° /20° 8.2 mm 5
24 Sept. Cloudy
Cloudy
25° /20° 0 mm 6
25 Sept. Partly cloudy
Partly cloudy
25° /20° 0.1 mm 7
26 Sept. Sunny
Sunny
29° /21° 0.1 mm 7
27 Sept. Patchy rain possible
Patchy rain possible
29° /23° 3.6 mm 6
28 Sept. Patchy rain possible
Patchy rain possible
28° /22° 3.9 mm 7
29 Sept. Patchy light drizzle
Patchy light drizzle
25° /22° 3.3 mm 6
30 Sept. Patchy rain possible
Patchy rain possible
26° /22° 0.4 mm 6
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Important Notice
Our weather forecast for Tokyo in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Tokyo forecast closer to your planned date for the most up-to-date weather information.

Guide for Tokyo in September

Tokyo, Japan, in September experiences a transition from the hot, humid summer to a more temperate autumn. At the beginning of the month, the weather remains quite warm and humid, with average daytime temperatures around 27° and nighttime temperatures around 21°.

The humidity can be quite high, often making it feel warmer than the actual temperature. Rain is also common during this period, as September is part of the typhoon season.

Typhoons can bring heavy rainfall and strong winds, so it’s important to stay updated on weather forecasts if you’re traveling during this time.

As the month progresses, the weather starts to cool down. By the end of September, daytime temperatures typically drop to around 23°, and nighttime temperatures can fall to around 18°. The humidity levels also decrease, making the weather feel more comfortable.

Rainfall becomes less frequent towards the end of the month, although occasional showers can still occur. The skies often clear up, providing more sunny days and a pleasant atmosphere for outdoor activities.

Overall, September in Tokyo offers a mix of warm, humid days at the beginning and cooler, more comfortable weather towards the end. It’s a month of change, bridging the gap between the intense summer heat and the mild autumn.

Tokyo in September - FAQ

Is September a good time to visit Tokyo?
Yes, September is a good time to traveling to Tokyo, read more about the best time to visit Tokyo.
What are the expected maximum and minimum temperatures in Tokyo during September?
During September, expect a variety of temperatures with highs around 29° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Tokyo during September?
Significant rainfall exceeding 268.4 mm is expected in Tokyo during September, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Tokyo during September?
The average wind speed in Tokyo during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

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
    • Sandals/Flip-flops: Comfortable for warm climates
  • 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

Explore the daily rainfall trends and prepare for Tokyos September weather 💧

UV exposure in Tokyo during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates 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.

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