Weather in Japan for August 2026
Until now, August 2026 in Japan is slightly cooler than the historical average by 1.3 °C.
Expect cooler weather in the next days in Japan with the forecast suggesting a temperature of 29.5 °C, lower than the historical average.
In general, the average temperature in Japan at the beginning of August is 32.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 28 °C by the end of August.
The climate of Japan in August is notably wet, with an average of 12 rainy days, and a total of 161 mm of precipitation.
Is August a good time to visit Japan? check out the best time to travel to Japan page.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
Japan Weather August
What’s the Weather Like in Japan This August?
Temperatures trend during August in Japan
August weather in Japan day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Cloudy | 33° /26° | 2.7 mm | 8 | |
| 2 Aug. |  Moderate rain at times | 34° /26° | 6 mm | 7 | |
| 3 Aug. |  Partly cloudy | 32° /26° | 0.3 mm | 7 | |
| 4 Aug. | Partly cloudy | 32° /25° | 4.7 mm | 8 | |
| 5 Aug. |  Patchy rain possible | 33° /26° | 0.6 mm | 7 | |
| 6 Aug. |  Sunny | 32° /26° | 2.4 mm | 7 | |
| 7 Aug. | Patchy rain possible | 32° /26° | 3.1 mm | 8 | |
| 8 Aug. | Partly cloudy | 32° /25° | 17.9 mm | 8 | |
| 9 Aug. | Sunny | 32° /26° | 4.3 mm | 8 | |
| 10 Aug. | Patchy rain possible | 32° /26° | 1.1 mm | 7 | |
| 11 Aug. | Patchy rain possible | 31° /25° | 5.8 mm | 7 | |
| 12 Aug. | Moderate or heavy rain shower | 30° /25° | 9.2 mm | 6 | |
| 13 Aug. | Moderate or heavy rain shower | 29° /25° | 32.5 mm | 6 | |
| 14 Aug. | Moderate or heavy rain shower | 31° /25° | 12.6 mm | 7 | |
| 15 Aug. | Moderate or heavy rain shower | 30° /25° | 14.3 mm | 7 | |
| 16 Aug. | Patchy rain possible | 29° /24° | 1.4 mm | 7.3 | |
| 17 Aug. | Patchy rain possible | 30° /24° | 3.2 mm | 6.1 | |
| 18 Aug. | Patchy rain possible | 30° /24° | 0.3 mm | 8.7 | |
| 19 Aug. | Patchy rain possible | 33° /26° | 0.5 mm | 8 | |
| 20 Aug. | Patchy rain possible | 31° /26° | 8.7 mm | 7 | |
| 21 Aug. | Patchy rain possible | 30° /26° | 7.4 mm | 7 | |
| 22 Aug. | Patchy rain possible | 31° /27° | 1.3 mm | 8 | |
| 23 Aug. | Partly cloudy | 31° /27° | 0 mm | 8 | |
| 24 Aug. | Sunny | 33° /26° | 0 mm | 8 | |
| 25 Aug. | Sunny | 34° /26° | 17.4 mm | 8 | |
| 26 Aug. | Patchy rain possible | 29° /26° | 6.3 mm | 6 | |
| 27 Aug. |  Light drizzle | 26° /22° | 23.9 mm | 6 | |
| 28 Aug. | Patchy rain possible | 23° /22° | 7.3 mm | 5 | |
| 29 Aug. | Light rain | 23° /22° | 47.8 mm | 5 | |
| 30 Aug. | Sunny | 30° /25° | 8.3 mm | 7 | |
| 31 Aug. | Patchy rain possible | 31° /25° | 9 mm | 7 | |
| Next | |||||
Japan weather in August vs July vs September
| July | August | September | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 30°/24° | 31°/26° | 28°/23° |
| Rainfall | 162 mm | 161 mm | 177 mm |
| Wind | 21 km/h | 23.3 km/h | 22.1 km/h |
| Humidity | 69% | 67% | 68% |
| Rainy days | 12 days | 12 days | 14 days |
| Dry days | 19 days | 19 days | 16 days |
Planning a trip to Japan? Discover the best time to visit
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
Is August a good time to visit Japan?
What are the expected maximum and minimum temperatures in Japan during August?
How much rainfall should be expected in Japan during August?
What are the typical wind conditions in Japan during August?
August rainfall patterns in Japan
UV exposure in Japan during August
What to pack to Japan in August?
Warm & sunny · highs around 31 °C, frequent showers
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
👟 Footwear
🎒 Accessories
🧴 Personal Items
Quick links
Where is Japan?Get accurate weather forecasts for Japan, located at latitude 35.69 and longitude 139.692. Stay updated with localized weather information tailored for Japan.