Hamamatsu Weather in August
Hamamatsu in August sees very high daytime temperatures of 32°C (90°F) and nighttime lows of 25°C (77°F). Rainfall is fairly high this month at around 161 mm (6.3 in), so pack a rain jacket to stay dry.
Rainfall in Hamamatsu in August
Climate statistics over the past 30 years suggest around 15 days of rain, with 161 mm (6.3 in) average for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Hamamatsu in August
Temperatures in Hamamatsu in August top out at 32°C (90°F) and drop to 25°C (77°F) overnight. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference. Remember, these are typical temperatures, and there can be hotter days. Dress appropriately and stay hydrated to remain comfortable.
Sunshine in Hamamatsu in August
With approximately 212 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If you prefer enjoying temperate temperatures and rain-free days, April typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hamamatsu's climate page.
Hamamatsu Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
32°C (90°F)
Chance of Rain
51%
Precipitation
161 mm (6.3 in)
Rainy days
15 days
Humidity
76%
Sunshine
212 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hamamatsu typically stay consistent throughout August, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Hamamatsu in August
Browse day-by-day weather records for Hamamatsu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hamamatsu historical weather extremes in August
Our historical data for Hamamatsu spans 1976 to 2025, revealing these weather extremes.
- The warmest day in August was on August 16, 2020, with a maximum of 39°C (102°F).
- The coldest August day was on August 15, 2003, with a maximum of 21°C (70°F).
- The coldest night in August in Hamamatsu was on August 28, 1996, with a minimum of 18°C (64°F).
Best Places in Japan in August
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in August →
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What to Wear in Hamamatsu in August
Warm but pleasant conditions in Hamamatsu in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Hamamatsu in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hamamatsu's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hamamatsu climate overview or explore weather in Japan.
