Kaga climate — normals and trends
Kaga (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.7 °C and it receives 2,310 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 (4.5 °C). Rainfall peaks in December.
Kaga averages 9 frost days, 5 hot days (≥ 30 °C) and 201 rainy days per year.
Kaga 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 17 to 1 per year over the period.
The hottest day of the period reached 32.5 °C (on 4 August 2025) and the coldest -3.8 °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
KagaIshikawa
- coords
- 36.30°, 136.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.7°C
Average daily high
16.5°C
Average daily low
12.8°C
Annual rainfall
2,310mm
Sunshine / day
8.7h
Mean relative humidity
75%
Average peak wind
23.3km/h
Seasonal range
21.8°C
Frost days (< 0 °C)
9 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
201 d/yr
Annual snowfall
134.6 cm
Average feels-like high
15.7 °C
Average feels-like low
10.9 °C
Average peak gust
38.7 km/h
Tropical nights (≥ 20 °C)
90 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.50 · 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
32.5 °C
4 August 2025
Coldest day
-3.8 °C
14 February 1942
Wettest day
160 mm
12 July 1972
Windiest day
94.7 km/h
16 September 1961
Strongest gust
159.1 km/h
4 September 2018
Hottest feels-like
39.2 °C
14 August 2019
Coldest feels-like
-12.8 °C
26 February 1981
Snowiest day
20.0 cm
1 February 1980
Sunniest day
14.0 h
27 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 | 7.1 °C | +0.8 °C | 283 mm | +32 mm |
| Feb | 5.8 °C | -0.5 °C | 262 mm | +82 mm |
| Mar | 10.0 °C | +0.8 °C | 160 mm | +3 mm |
| Apr | 14.8 °C | +0.6 °C | 117 mm | -26 mm |
| May | 19.0 °C | +0.6 °C | 156 mm | +9 mm |
| Jun | 23.8 °C | +1.9 °C | 195 mm | -1 mm |
| Jul | 29.3 °C | +3.3 °C | 28 mm | -222 mm |
| Aug | 29.6 °C | +1.7 °C | 273 mm | +119 mm |
| Sep | 27.7 °C | +3.0 °C | 236 mm | +21 mm |
| Oct | 21.2 °C | +1.7 °C | 197 mm | +29 mm |
| Nov | 15.3 °C | +0.6 °C | 164 mm | -23 mm |
| Dec | 11.3 °C | +1.8 °C | 269 mm | +3 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 Kaga?
Kaga has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.7 °C and it receives 2,310 mm of precipitation per year.
What is the hottest day ever recorded in Kaga?
The hottest day measured in Kaga between 1940 and 2025 was 4 August 2025, reaching 32.5 °C.
What is the coldest day in Kaga?
The coldest day measured in Kaga between 1940 and 2025 was 14 February 1942, at -3.8 °C.
Does it snow in Kaga?
Yes. Kaga gets on average 134.6 cm of snow per year and has around 9 frost days.
Has the climate of Kaga warmed?
Yes: Kaga warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kaga?
The wettest day measured in Kaga between 1940 and 2025 was 12 July 1972, with 160 mm of rain in 24 hours.
What was the windiest day in Kaga?
The windiest day measured in Kaga between 1940 and 2025 was 16 September 1961, with winds reaching 94.7 km/h.
What is the warmest month in Kaga?
The warmest month in Kaga is August (26.3 °C on average); the coldest is February (4.5 °C).
How much does it rain in Kaga?
Kaga receives on average 2,310 mm of precipitation per year, spread over about 201 rainy days.
Is it sunny in Kaga?
Kaga 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 Kaga?
The heaviest 24-hour snowfall measured in Kaga between 1940 and 2025 was 1 February 1980, with 20.0 cm.
Are there tropical nights in Kaga?
Yes: Kaga has on average 90 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kaga?
In Kaga, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 14 August 2019, and the lowest was -12.8 °C on 26 February 1981.
Compare Kaga with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kaga