Kasumi climate — normals and trends
Kasumi (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.0 °C and it receives 1,952 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 (26.3 °C on average) and the coldest is February (5.2 °C). Rainfall peaks in December.
Kasumi averages 3 frost days, 6 hot days (≥ 30 °C) and 194 rainy days per year.
Kasumi has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 7 to 0 per year over the period.
The hottest day of the period reached 33.2 °C (on 11 August 1994) and the coldest -3.9 °C (on 26 February 1981).
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
KasumiHyōgo
- coords
- 35.63°, 134.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.0°C
Average daily high
16.8°C
Average daily low
13.3°C
Annual rainfall
1,952mm
Sunshine / day
8.7h
Mean relative humidity
76%
Average peak wind
25.2km/h
Seasonal range
21.1°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
194 d/yr
Annual snowfall
80.3 cm
Average feels-like high
16.0 °C
Average feels-like low
11.1 °C
Average peak gust
41.2 km/h
Tropical nights (≥ 20 °C)
93 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.51 · 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
33.2 °C
11 August 1994
Coldest day
-3.9 °C
26 February 1981
Wettest day
164 mm
27 October 1961
Windiest day
88.8 km/h
16 September 1961
Strongest gust
147.2 km/h
18 September 1945
Hottest feels-like
40.9 °C
22 August 2024
Coldest feels-like
-14.6 °C
26 February 1981
Snowiest day
17.4 cm
1 February 2005
Sunniest day
14.0 h
18 May 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 | 7.7 °C | +0.7 °C | 197 mm | -8 mm |
| Feb | 6.2 °C | -0.7 °C | 197 mm | +49 mm |
| Mar | 10.7 °C | +1.0 °C | 165 mm | +34 mm |
| Apr | 14.9 °C | +0.5 °C | 82 mm | -42 mm |
| May | 18.8 °C | +0.4 °C | 155 mm | +18 mm |
| Jun | 24.0 °C | +2.1 °C | 184 mm | +5 mm |
| Jul | 29.4 °C | +3.4 °C | 42 mm | -160 mm |
| Aug | 29.7 °C | +1.8 °C | 235 mm | +99 mm |
| Sep | 27.6 °C | +3.0 °C | 197 mm | -7 mm |
| Oct | 21.6 °C | +2.0 °C | 189 mm | +48 mm |
| Nov | 15.8 °C | +0.8 °C | 92 mm | -47 mm |
| Dec | 11.6 °C | +1.6 °C | 179 mm | -28 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 Kasumi?
Kasumi has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.0 °C and it receives 1,952 mm of precipitation per year.
What is the hottest day ever recorded in Kasumi?
The hottest day measured in Kasumi between 1940 and 2025 was 11 August 1994, reaching 33.2 °C.
What is the coldest day in Kasumi?
The coldest day measured in Kasumi between 1940 and 2025 was 26 February 1981, at -3.9 °C.
Does it snow in Kasumi?
Yes. Kasumi gets on average 80.3 cm of snow per year and has around 3 frost days.
Has the climate of Kasumi warmed?
Yes: Kasumi warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kasumi?
The wettest day measured in Kasumi between 1940 and 2025 was 27 October 1961, with 164 mm of rain in 24 hours.
What was the windiest day in Kasumi?
The windiest day measured in Kasumi between 1940 and 2025 was 16 September 1961, with winds reaching 88.8 km/h.
What is the warmest month in Kasumi?
The warmest month in Kasumi is August (26.3 °C on average); the coldest is February (5.2 °C).
How much does it rain in Kasumi?
Kasumi receives on average 1,952 mm of precipitation per year, spread over about 194 rainy days.
Is it sunny in Kasumi?
Kasumi gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kasumi?
The heaviest 24-hour snowfall measured in Kasumi between 1940 and 2025 was 1 February 2005, with 17.4 cm.
Are there tropical nights in Kasumi?
Yes: Kasumi has on average 93 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kasumi?
In Kasumi, between 1940 and 2025, the highest apparent temperature reached 40.9 °C on 22 August 2024, and the lowest was -14.6 °C on 26 February 1981.
Compare Kasumi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kasumi