Yamanouchi Weather in May
May in Yamanouchi brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 9°C (48°F). Quite a bit of rainfall is expected, around 139 mm (5.5 in), so pack an umbrella.
Rainfall in Yamanouchi in May
Typically around 17 days of rainfall are expected, averaging 139 mm (5.5 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Yamanouchi in May
Expect highs of 20°C (68°F) in Yamanouchi in May, with nights dropping to around 9°C (48°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Yamanouchi in May
Expect a lot of sunshine this month, with about 209 hours of sun. These sunny conditions add to the overall experience.If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit 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 May
Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
57%
Precipitation
139 mm (5.5 in)
Rainy days
17 days
Humidity
65% *
Sunshine
209 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Yamanouchi typically stay consistent throughout May, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°F).
Average temperatures in May
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 May
Historical weather for Yamanouchi in May
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 May
Based on 50 years of weather observations in Yamanouchi between 1976 and 2026, these are the recorded extremes.
- The warmest day in May was on May 18, 2023, with a maximum of 33°C (91°F).
- The lowest daytime temperature in May was 9°C (48°F), recorded on May 2, 1993.
- Nighttime temperatures dropped to 1°C (34°F) on May 9, 2023, marking the coldest May night on record.
Best Places in Japan in May
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in May →
perfect weather
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tolerable
unpleasant
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What to Wear in Yamanouchi in May
For Yamanouchi in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Yamanouchi in May
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.
