Yamanashi, Japan Weather

Yamanashi,  Weather
(Photo by Sora Sagano on Unsplash)

Current conditions

Updated:
27°C
80.6°F
°C °F

Condition: Drizzle

Pressure: 975 hPa

Feel like: 33 °C

Temperature: 27°C

Cloud: 53%

Humidity: 78%

Wind: NW - 2 km/h

Visibility: 25.9 km

Weather forecast

Fri
07 Aug
23°C / 34°C
Moderate Rain
Sat
08 Aug
22°C / 27°C
Thunderstorm With Slight
Sun
09 Aug
21°C / 29°C
Drizzle
Mon
10 Aug
20°C / 27°C
Moderate Drizzle
Tue
11 Aug
21°C / 28°C
Drizzle
Hourly forecast today:
10:00 AM
23° / 27°
23° / 27°
Drizzle
78% 9 km/h
11:00 AM
23° / 27°
23° / 27°
Mainly Clear
80% 6 km/h
12:00 PM
23° / 26°
23° / 26°
Mainly Clear
82% 7 km/h
13:00 PM
22° / 25°
22° / 25°
Mainly Clear
83% 8 km/h
14:00 PM
22° / 25°
22° / 25°
Mainly Clear
84% 8 km/h
15:00 PM
22° / 25°
22° / 25°
Mainly Clear
83% 9 km/h
16:00 PM
22° / 24°
22° / 24°
Mainly Clear
85% 9 km/h
17:00 PM
21° / 24°
21° / 24°
Mainly Clear
83% 8 km/h
18:00 PM
21° / 24°
21° / 24°
Mainly Clear
85% 7 km/h
19:00 PM
21° / 23°
21° / 23°
Mainly Clear
86% 7 km/h
20:00 PM
21° / 23°
21° / 23°
Mainly Clear
86% 7 km/h

30 Day Averages and Extremes

  • Average high 31.4°C
  • Average low 22.03°C
  • Hottest day 39°C (22 July 2026)
  • Coldest day 19°C (04 August 2026)
  • Average humidity 76.6%
  • Days with precipitation 28 days
  • Highest precipitation 53 mm (08 August 2026)

Yesterday's Data

  • Max: 33°C
  • Min: 23°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

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 31ºC (87.8ºF), consider wearing:
- Sleeveless tops or vests
- Light, natural fabrics (like cotton or linen)
- Airy sandals or flip-flops
- Lightweight, loose-fitting shorts

Temperature

Early
22°C / 32°C
Morning
23°C / 29°C
Afternoon
22°C / 25°C
Evening
21°C / 24°C

Air quality

Moderate

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

  • CO2 458
  • CO 148
  • NH3 0
  • NO2 10
  • O3 62
  • PM10 8
  • PM25 8
  • SO2 4
  • CH4 1,385

Sunrise / Sunset

19:58
09:44