Tsuru climate — normals and trends
Tsuru (Japan) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.5 °C and it receives 1,949 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (23.2 °C on average) and the coldest is January (-0.2 °C). Rainfall peaks in September.
Tsuru averages 90 frost days, 12 hot days (≥ 30 °C) and 179 rainy days per year.
Tsuru has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 113 to 67 per year over the period.
The hottest day of the period reached 36.3 °C (on 7 July 2024) and the coldest -25.3 °C (on 14 February 1942).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
TsuruYamanashi
- coords
- 35.55°, 138.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.5°C
Average daily high
16.0°C
Average daily low
7.6°C
Annual rainfall
1,949mm
Sunshine / day
8.3h
Mean relative humidity
78%
Average peak wind
9.0km/h
Seasonal range
23.4°C
Frost days (< 0 °C)
90 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
179 d/yr
Annual snowfall
89.4 cm
Average feels-like high
15.5 °C
Average feels-like low
6.5 °C
Average peak gust
32.2 km/h
Tropical nights (≥ 20 °C)
36 d/yr
Solar radiation
13.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.69 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.3 °C
7 July 2024
Coldest day
-25.3 °C
14 February 1942
Wettest day
303 mm
12 October 2019
Windiest day
37.7 km/h
27 September 1959
Strongest gust
174.2 km/h
27 September 1959
Hottest feels-like
40.7 °C
5 August 2025
Coldest feels-like
-30.5 °C
14 February 1942
Snowiest day
55.9 cm
23 March 1986
Sunniest day
14.0 h
23 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 7.6 °C | +2.5 °C | 37 mm | -30 mm |
| Feb | 7.7 °C | +2.1 °C | 19 mm | -69 mm |
| Mar | 12.5 °C | +3.3 °C | 197 mm | +53 mm |
| Apr | 17.6 °C | +2.4 °C | 163 mm | +9 mm |
| May | 20.1 °C | +0.7 °C | 223 mm | +49 mm |
| Jun | 26.2 °C | +4.1 °C | 163 mm | -75 mm |
| Jul | 29.6 °C | +3.4 °C | 147 mm | -83 mm |
| Aug | 30.5 °C | +3.4 °C | 87 mm | -129 mm |
| Sep | 27.0 °C | +3.8 °C | 192 mm | -53 mm |
| Oct | 18.5 °C | +0.7 °C | 164 mm | -50 mm |
| Nov | 14.1 °C | +1.1 °C | 34 mm | -80 mm |
| Dec | 9.7 °C | +1.7 °C | 82 mm | +14 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Tsuru?
Tsuru has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.5 °C and it receives 1,949 mm of precipitation per year.
What is the hottest day ever recorded in Tsuru?
The hottest day measured in Tsuru between 1940 and 2025 was 7 July 2024, reaching 36.3 °C.
What is the coldest day in Tsuru?
The coldest day measured in Tsuru between 1940 and 2025 was 14 February 1942, at -25.3 °C.
Does it snow in Tsuru?
Yes. Tsuru gets on average 89.4 cm of snow per year and has around 90 frost days.
Has the climate of Tsuru warmed?
Yes: Tsuru warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tsuru?
The wettest day measured in Tsuru between 1940 and 2025 was 12 October 2019, with 303 mm of rain in 24 hours.
What was the windiest day in Tsuru?
The windiest day measured in Tsuru between 1940 and 2025 was 27 September 1959, with winds reaching 37.7 km/h.
What is the warmest month in Tsuru?
The warmest month in Tsuru is August (23.2 °C on average); the coldest is January (-0.2 °C).
How much does it rain in Tsuru?
Tsuru receives on average 1,949 mm of precipitation per year, spread over about 179 rainy days.
Is it sunny in Tsuru?
Tsuru gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Tsuru?
The heaviest 24-hour snowfall measured in Tsuru between 1940 and 2025 was 23 March 1986, with 55.9 cm.
Are there tropical nights in Tsuru?
Yes: Tsuru has on average 36 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tsuru?
In Tsuru, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 5 August 2025, and the lowest was -30.5 °C on 14 February 1942.
Compare Tsuru with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tsuru