Yamanouchi Weather in August
August in Yamanouchi sees daytime temperatures around 28°C (82°F) and lows of 19°C (66°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Yamanouchi in August
Yamanouchi is in the rainy season in August, with rain on around 21 days and an average of 186 mm (7.3 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Yamanouchi in August
In August, Yamanouchi gets high temperatures, with highs of 28°C (82°F). Nights cool to around 19°C (66°F). August is part of the summer season. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. This is typically the warmest month of the year, so light summer clothing is a good idea.
Sunshine in Yamanouchi in August
The days are predominantly sunny, with an estimated total of around 206 hours of sunshine. Rain is often only seen in the afternoon or evening, leaving clear skies for most of the day. This results in rainy months that still feel bright and are suitable for travel.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May typically offers the best weather for Yamanouchi.
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 Yamanouchi's climate page.
Yamanouchi Temperature in August
Min Temperature
19°C (66°F)
Max Temperature
28°C (82°F)
Chance of Rain
69%
Precipitation
186 mm (7.3 in)
Rainy days
21 days
Humidity
72% *
Sunshine
206 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Yamanouchi typically stay consistent throughout August, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 21°C (70°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 Yamanouchi in August
Browse day-by-day weather records for Yamanouchi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Yamanouchi historical weather extremes in August
The extremes listed below come from historical weather data collected in Yamanouchi from 1976 through 2025.
- On August 16, 1994, temperatures climbed to 36°C (97°F), marking the warmest August day on record.
- On August 28, 1996, Yamanouchi saw its coldest August day with temperatures maxing out at 19°C (66°F).
- Yamanouchi registered its coldest August night on August 18, 2018, with temperatures dropping to 13°C (55°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
pleasant
tolerable
unpleasant
poor
What to Wear in Yamanouchi in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Yamanouchi 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 Yamanouchi's climate page.
Temperature Rainfall Sunshine Humidity
See the full Yamanouchi climate overview or explore weather in Japan.
