Yamanakako Weather in August
August in Yamanakako sees daytime temperatures around 29°C (84°F) and lows of 21°C (70°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Yamanakako in August
As part of the rainy season, Yamanakako sees around 19 days of rain in August, with an average of 192 mm (7.6 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Yamanakako in August
In August, Yamanakako gets high temperatures, with highs of 29°C (84°F). Nights cool to around 21°C (70°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are mild at around 21°C (70°F), which is comfortable for most people. This is typically the warmest month of the year, so light summer clothing is a good idea.Should you favor a climate that's both dry and comfortably warm, May typically offers the most agreeable 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 Yamanakako's climate page.
Yamanakako Temperature in August
Min Temperature
21°C (70°F)
Max Temperature
29°C (84°F)
Chance of Rain
63%
Precipitation
192 mm (7.6 in)
Rainy days
19 days
Humidity
73% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Yamanakako typically stay consistent throughout August, with daily highs averaging around 29°C (84°F). Nights are pleasant, with lows around 17°C (63°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 Yamanakako in August
Browse day-by-day weather records for Yamanakako spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Yamanakako historical weather extremes in August
Our historical data for Yamanakako spans 1976 to 2025, revealing these weather extremes.
- The warmest day in August was on August 6, 1978, with a maximum of 38°C (100°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 →
perfect weather
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tolerable
unpleasant
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What to Wear in Yamanakako in August
Warm but pleasant conditions in Yamanakako 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.What To Do in Yamanakako 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 Yamanakako's climate page.
See the full Yamanakako climate overview or explore weather in Japan.
