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Weather in Kumamoto for August 2026

Your guide to Kumamoto weather in August - trends and predictions

    Temperatures

  • So far, August 2026 in Kumamoto is slightly warmer than the historical average by 0.8 °C.

  • The forecast for the next days in Kumamoto predicts a temperature of 33.2 °C, which is cooler than the historical average.

  • In general, the average temperature in Kumamoto at the beginning of August is 35.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 34.9 °C by the end of August.

    • Rain 🌧️

  • Kumamoto experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 378.9 mm.

    • More

  • Is August a good time to visit Kumamoto? check out the best time to travel to Kumamoto page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
7
Dry days
Average rainy days
24
Rainy days
Average snowy days
0
Snow days
Average temperatures
33°/25°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Kumamoto Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
37°
2
Patchy rain possible
37°
3
Partly cloudy
37°
4
Moderate rain at times
36°
5
Moderate or heavy rain shower
36°
6
Patchy rain possible
34°
7
Sunny
32°
8
Sunny
33°
9
Patchy rain possible
32°
10
Sunny
33°
11
Sunny
32°
12
Sunny
34°
13
Patchy rain possible
34°
14
Patchy rain possible
34°
15
Patchy rain possible
34°
16
Moderate or heavy rain shower
34°
17
Partly cloudy
34°
18
Patchy rain possible
34°
19
Moderate or heavy rain shower
34°
20
Patchy rain possible
36°
21
Moderate or heavy rain shower
33°
22
Overcast
34°
23
Moderate rain at times
34°
24
Moderate rain at times
34°
25
Moderate or heavy rain shower
35°
26
Patchy rain possible
34°
27
Patchy rain possible
33°
28
Sunny
37°
29
Patchy rain possible
33°
30
Sunny
35°
31
Sunny
37°

Temperatures trend during August in Kumamoto

See the weather trend as well as the moving average line

August weather in Kumamoto day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
1 Aug. Patchy rain possible
Patchy rain possible
 37° /24° 0.2 mm 10
2 Aug. Patchy rain possible
Patchy rain possible
 37° /25° 0.1 mm 10
3 Aug. Partly cloudy
Partly cloudy
 37° /26° 0.1 mm 10
4 Aug. Moderate rain at times
Moderate rain at times
 36° /26° 2 mm 8
5 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 36° /26° 2.1 mm 9
6 Aug. Patchy rain possible
Patchy rain possible
 34° /25° 1.3 mm 9
7 Aug. Sunny
Sunny
 32° /25° 10.8 mm 8
8 Aug. Sunny
Sunny
 33° /25° 3.1 mm 9
9 Aug. Patchy rain possible
Patchy rain possible
 32° /25° 16.4 mm 9
10 Aug. Sunny
Sunny
 33° /25° 43.3 mm 9
11 Aug. Sunny
Sunny
 32° /24° 65.1 mm 9
12 Aug. Sunny
Sunny
 34° /23° 1.6 mm 9
13 Aug. Patchy rain possible
Patchy rain possible
 34° /24° 1 mm 9
14 Aug. Patchy rain possible
Patchy rain possible
 34° /24° 0.9 mm 8
15 Aug. Patchy rain possible
Patchy rain possible
 34° /24° 1.2 mm 8
16 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 34° /25° 3.2 mm 8
17 Aug. Partly cloudy
Partly cloudy
 34° /24° 5.5 mm 6
18 Aug. Patchy rain possible
Patchy rain possible
 34° /24° 3.9 mm 6
19 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 34° /24° 6.2 mm 7
20 Aug. Patchy rain possible
Patchy rain possible
 36° /25° 1.4 mm 9
21 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 33° /25° 5.6 mm 6
22 Aug. Overcast
Overcast
 34° /25° 1.6 mm 8
23 Aug. Moderate rain at times
Moderate rain at times
 34° /25° 1.2 mm 8
24 Aug. Moderate rain at times
Moderate rain at times
 34° /25° 2 mm 8
25 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 35° /24° 4.1 mm 8
26 Aug. Patchy rain possible
Patchy rain possible
 34° /24° 4.4 mm 6
27 Aug. Patchy rain possible
Patchy rain possible
 33° /24° 1.3 mm 7
28 Aug. Sunny
Sunny
 37° /26° 1.5 mm 10.1
29 Aug. Patchy rain possible
Patchy rain possible
 33° /25° 0.4 mm 7
30 Aug. Sunny
Sunny
 35° /25° 0 mm 9
31 Aug. Sunny
Sunny
 37° /25° 0 mm 9
Next
Important Notice
Our weather forecast for Kumamoto in August 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 Kumamoto forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Kumamoto weather in August vs July vs September

Compare August weather in Kumamoto with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
JulyAugustSeptember
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures32°/24°33°/25°31°/23°
Rainfall204 mm379 mm137 mm
Wind13.2 km/h13.5 km/h10.7 km/h
Humidity74%72%74%
Rainy days20 days24 days17 days
Dry days11 days7 days13 days

Planning a trip to Kumamoto? Discover the best time to visit

Kumamoto in August - FAQ

What are the expected maximum and minimum temperatures in Kumamoto during August?
During August, expect a variety of temperatures with highs around 33° and lows near 25°, suitable for diverse activities and preferences.

How much rainfall should be expected in Kumamoto during August?
Significant rainfall exceeding 378.9 mm is expected in Kumamoto during August, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Kumamoto during August?
The average wind speed in Kumamoto during August is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Kumamoto

Explore the daily rainfall trends and prepare for Kumamotos August weather 💧
Typically, Kumamoto has 24 rainy days in August with a total of 378.9 mm of rainfall.

UV exposure in Kumamoto during August

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

What to pack to Kumamoto in August?

🌦️ Warm & sunny · highs around 33 °C, frequent showers

As you prepare for your trip to Kumamoto 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 Kumamoto, during August, is comfortable and enjoyable, regardless of the weather conditions.

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🧥 Clothing

👟 Footwear

🎒 Accessories

🧴 Personal Items

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Location coordinates Where is Kumamoto?

Get accurate weather forecasts for Kumamoto, located at latitude 32.806 and longitude 130.692. Stay updated with localized weather information tailored for Kumamoto.

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