Yamanashi, Japan Weather

  1. Yamanashi, Japan Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Yamanashi over the next 12 hours
  7. Temperature and possibility of rain in Yamanashi in the coming days
  8. Rainfall in Yamanashi in the coming days
  9. Yamanashi Weather Summary
  10. Weather averages by month
  11. Yamanashi's weather
  12. Frequently asked questions
  13. Comments
Yamanashi, Weather
(Photo by Sora Sagano on Unsplash)

Current conditions

Updated:
18°C
64.4°F
°C °F

Condition: Partly Cloudy

Pressure: 981 hPa

Feel like: 20 °C

Temperature: 18°C

Cloud: 50%

Humidity: 89%

Wind: NNE - 2 km/h

Visibility: 0.58 km

Weather forecast

Sun
14 Jun
17°C / 23°C
Overcast
Mon
15 Jun
13°C / 23°C
Drizzle
Tue
16 Jun
15°C / 25°C
Overcast
Wed
17 Jun
15°C / 25°C
Overcast
Thu
18 Jun
16°C / 27°C
Drizzle
Hourly forecast today:
18:00 PM
16° / 18°
16° / 18°
Partly Cloudy
89% 11 km/h
19:00 PM
16° / 17°
16° / 17°
Partly Cloudy
90% 11 km/h
20:00 PM
16° / 17°
16° / 17°
Partly Cloudy
89% 11 km/h
21:00 PM
16° / 18°
16° / 18°
Mainly Clear
86% 11 km/h
22:00 PM
16° / 19°
16° / 19°
Overcast
83% 9 km/h
23:00 PM
16° / 20°
16° / 20°
Overcast
80% 14 km/h
00:00 AM
16° / 21°
16° / 21°
Overcast
75% 15 km/h
01:00 AM
16° / 22°
16° / 22°
Overcast
70% 16 km/h
02:00 AM
16° / 23°
16° / 23°
Partly Cloudy
66% 19 km/h
03:00 AM
17° / 25°
17° / 25°
Mainly Clear
62% 20 km/h
04:00 AM
17° / 25°
17° / 25°
Partly Cloudy
58% 20 km/h

30 Day Averages and Extremes

  • Average high 24.23°C
  • Average low 16.27°C
  • Hottest day 31°C (31 May 2026)
  • Coldest day 0°C (27 June 2026)
  • Average humidity 73.8%
  • Days with precipitation 26 days
  • Highest precipitation 70 mm (02 June 2026)

Yesterday's Data

  • Max: 27°C
  • Min: 16°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Yamanashi over the next 12 hours

Temperature and possibility of rain in Yamanashi in the coming days

Rainfall in Yamanashi in the coming days

Yamanashi Climate Summary

Yamanashi features a Humid continental, no dry season, warm summer (Köppen classification: Dfb), with an average annual temperature of 11.94ºC (53.49ºF), which is about -3.25% lower than the national average for Japan. Annually, the city experiences approximately 98.18 millimeters (3.87 inches) of rainfall, spread across 147.54 rainy days, accounting for 40.42% of the year.

Longitude 35.6635113
Latitude 138.6388879
Yearly high temperature 15.94ºC (60.69ºF)
Yearly low temperature 5.39ºC (41.7ºF)
Hottest month August 27.86ºC (82.15ºF)
Coldest month January -6.17ºC (20.89ºF)
Yearly precip 98.18mm (3.87in)
Days with rainfall 147.54 days (40.42%)
Driest month January (68.44%)
Wettest month October (80.58%)

Weather averages by month

Month High / Low (°C) Rain
January 3.84° / -6.17° 5.09 days
February 5.16° / -5.37° 7.55 days
March 9.26° / -1.79° 11.45 days
April 14.46° / 3.0° 12.36 days
May 20.42° / 7.96° 12.45 days
June 22.54° / 12.09° 18.55 days
July 26.39° / 16.54° 21.09 days
August 27.86° / 17.3° 18.91 days
September 23.69° / 13.59° 14.91 days
October 18.07° / 7.8° 12.36 days
November 12.82° / 2.52° 7.18 days
December 6.76° / -2.83° 5.64 days

Yamanashi's weather

Frequently asked questions

1. What is the hottest month in Yamanashi?

August has the highest average monthly temperature (daily mean of 27.86ºC) and January are the coolest (daily mean of -6.17ºC).

2. What should I wear in Yamanashi today?

For today's very hot weather in Yamanashi, with the high temperatures above 26ºC (78.8ºF), consider wearing:
- Sunscreen for skin protection
- Open-toed sandals or light sneakers
- Breathable shorts or skirts
- Wide-brimmed sun hat

Temperature

Early
15°C / 26°C
Morning
16°C / 23°C
Afternoon
16°C / 19°C
Evening
16°C / 18°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 489
  • CO 165
  • NH3 0
  • NO2 8
  • O3 39
  • PM10 14
  • PM25 13
  • SO2 1
  • CH4 1,418

Sunrise / Sunset

19:29
10:02