Weather in Japan for August 2025
In general, the average temperature in Japan at the beginning of August is 32.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 31 °C by the end of August.
Expect significant rainfall in Japan during August, with an average of 18 rainy days.
Is August a good time to visit Japan? check out the best time to travel to Japan page.
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Japan in August average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 33° | 2 33° | 3 33° | ||||
4 33° | 5 33° | 6 33° | 7 32° | 8 32° | 9 32° | 10 33° |
11 33° | 12 32° | 13 33° | 14 32° | 15 33° | 16 29° | 17 33° |
18 32° | 19 33° | 20 33° | 21 32° | 22 31° | 23 30° | 24 31° |
25 32° | 26 32° | 27 31° | 28 32° | 29 32° | 30 29° | 31 29° |
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Temperatures trend during August in Japan
August weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Aug. | Patchy rain possible | 33° /27° | 0.8 mm | 7 | |
2 Aug. | Overcast | 33° /26° | 0 mm | 8 | |
3 Aug. | Moderate rain at times | 33° /26° | 0.2 mm | 8 | |
4 Aug. | Patchy rain possible | 33° /26° | 0.1 mm | 8 | |
5 Aug. | Cloudy | 33° /27° | 0 mm | 8 | |
6 Aug. | Moderate or heavy rain shower | 33° /27° | 2.3 mm | 8 | |
7 Aug. | Patchy rain possible | 32° /26° | 1.8 mm | 7 | |
8 Aug. | Patchy rain possible | 32° /27° | 7.3 mm | 7 | |
9 Aug. | Moderate or heavy rain shower | 32° /27° | 10.6 mm | 7 | |
10 Aug. | Patchy rain possible | 33° /26° | 0.9 mm | 8 | |
11 Aug. | Patchy rain possible | 33° /26° | 1.5 mm | 8 | |
12 Aug. | Overcast | 32° /26° | 0 mm | 8 | |
13 Aug. | Moderate or heavy rain shower | 33° /27° | 7 mm | 7 | |
14 Aug. | Heavy rain at times | 32° /27° | 4.6 mm | 8 | |
15 Aug. | Moderate or heavy rain shower | 33° /27° | 9.4 mm | 8 | |
16 Aug. | Cloudy | 29° /25° | 28 mm | 7 | |
17 Aug. | Patchy rain possible | 33° /27° | 1.9 mm | 7 | |
18 Aug. | Partly cloudy | 32° /26° | 2.2 mm | 8 | |
19 Aug. | Sunny | 33° /27° | 5.6 mm | 8 | |
20 Aug. | Patchy rain possible | 33° /26° | 6.9 mm | 7 | |
21 Aug. | Partly cloudy | 32° /26° | 0.5 mm | 8 | |
22 Aug. | Patchy rain possible | 31° /26° | 2.9 mm | 7 | |
23 Aug. | Moderate or heavy rain shower | 30° /26° | 4.2 mm | 7 | |
24 Aug. | Patchy rain possible | 31° /26° | 0.6 mm | 7 | |
25 Aug. | Sunny | 32° /26° | 0.8 mm | 8 | |
26 Aug. | Patchy rain possible | 32° /26° | 0.7 mm | 7 | |
27 Aug. | Patchy rain possible | 31° /26° | 2.5 mm | 7 | |
28 Aug. | Sunny | 32° /26° | 1.6 mm | 8 | |
29 Aug. | Partly cloudy | 32° /26° | 2.8 mm | 8 | |
30 Aug. | Sunny | 29° /26° | 20.2 mm | 7 | |
31 Aug. | Sunny | 29° /25° | 16.6 mm | 7 | |
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Guide for Japan in August
In August, Japan experiences a varied climate, with different regions of the country experiencing different weather patterns. At the beginning of the month, the northern regions of Japan, such as Hokkaido, typically have cooler temperatures, with average highs around 25° and lows around 18°.
The central regions, including Tokyo and Kyoto, tend to be hot and humid, with average highs around 31° and lows around 24°. The southern regions, like Okinawa, are very warm and experience frequent rainfall, with average highs around 32° and lows around 27°.
By the end of August, the weather in Japan begins to transition towards autumn. In the northern regions, temperatures start to cool down slightly, with average highs around 23° and lows around 16°.
In the central regions, the heat and humidity persist, with average highs around 30° and lows around 23°. The southern regions continue to experience warm temperatures and heavy rainfall, with average highs around 31° and lows around 26°.
Overall, August in Japan offers a mix of climates, from cooler temperatures in the north to hot and humid conditions in the central and southern regions.
Japan in August - FAQ
What to pack to Japan in August?
As you prepare for your trip to Japan in August, 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 Japan, during August, 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
August rainfall patterns in Japan
UV exposure in Japan during August
Quick links
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