Fukagawa climate — normals and trends
Fukagawa (Japan) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.4 °C and it receives 1,179 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 (20.7 °C on average) and the coldest is January (-8.1 °C). Rainfall peaks in August.
Fukagawa averages 157 frost days, 1 hot days (≥ 30 °C) and 182 rainy days per year.
Fukagawa has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 171 to 144 per year over the period.
The hottest day of the period reached 32.7 °C (on 23 August 2023) and the coldest -27.2 °C (on 25 January 1985).
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
FukagawaHokkaido
- coords
- 43.71°, 142.04°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.4°C
Average daily high
10.4°C
Average daily low
2.2°C
Annual rainfall
1,179mm
Sunshine / day
8.2h
Mean relative humidity
78%
Average peak wind
14.5km/h
Seasonal range
28.8°C
Frost days (< 0 °C)
157 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
182 d/yr
Annual snowfall
215.5 cm
Average feels-like high
8.3 °C
Average feels-like low
-0.3 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
10 d/yr
Solar radiation
12.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.62 · 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
32.7 °C
23 August 2023
Coldest day
-27.2 °C
25 January 1985
Wettest day
179 mm
23 August 1975
Windiest day
53.0 km/h
27 September 1954
Strongest gust
137.2 km/h
27 September 1954
Hottest feels-like
38.9 °C
24 August 2023
Coldest feels-like
-32.0 °C
25 January 1985
Snowiest day
28.1 cm
5 December 2004
Sunniest day
15.0 h
18 June 1941
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 | -1.6 °C | +2.7 °C | 48 mm | -9 mm |
| Feb | -0.3 °C | +2.8 °C | 61 mm | +9 mm |
| Mar | 3.3 °C | +1.7 °C | 96 mm | +29 mm |
| Apr | 10.7 °C | +1.4 °C | 116 mm | +39 mm |
| May | 18.7 °C | +3.0 °C | 76 mm | -14 mm |
| Jun | 23.8 °C | +4.3 °C | 112 mm | +20 mm |
| Jul | 28.8 °C | +5.4 °C | 100 mm | -28 mm |
| Aug | 27.1 °C | +2.7 °C | 183 mm | +6 mm |
| Sep | 23.4 °C | +3.2 °C | 203 mm | +58 mm |
| Oct | 13.3 °C | -0.3 °C | 115 mm | -1 mm |
| Nov | 6.3 °C | +0.9 °C | 155 mm | +55 mm |
| Dec | 0.3 °C | +1.7 °C | 137 mm | +58 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 Fukagawa?
Fukagawa has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.4 °C and it receives 1,179 mm of precipitation per year.
What is the hottest day ever recorded in Fukagawa?
The hottest day measured in Fukagawa between 1940 and 2025 was 23 August 2023, reaching 32.7 °C.
What is the coldest day in Fukagawa?
The coldest day measured in Fukagawa between 1940 and 2025 was 25 January 1985, at -27.2 °C.
Does it snow in Fukagawa?
Yes. Fukagawa gets on average 215.5 cm of snow per year and has around 157 frost days.
Has the climate of Fukagawa warmed?
Yes: Fukagawa warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Fukagawa?
The wettest day measured in Fukagawa between 1940 and 2025 was 23 August 1975, with 179 mm of rain in 24 hours.
What was the windiest day in Fukagawa?
The windiest day measured in Fukagawa between 1940 and 2025 was 27 September 1954, with winds reaching 53.0 km/h.
What is the warmest month in Fukagawa?
The warmest month in Fukagawa is August (20.7 °C on average); the coldest is January (-8.1 °C).
How much does it rain in Fukagawa?
Fukagawa receives on average 1,179 mm of precipitation per year, spread over about 182 rainy days.
Is it sunny in Fukagawa?
Fukagawa gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
What is the biggest single-day snowfall in Fukagawa?
The heaviest 24-hour snowfall measured in Fukagawa between 1940 and 2025 was 5 December 2004, with 28.1 cm.
Are there tropical nights in Fukagawa?
Yes: Fukagawa has on average 10 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Fukagawa?
In Fukagawa, between 1940 and 2025, the highest apparent temperature reached 38.9 °C on 24 August 2023, and the lowest was -32.0 °C on 25 January 1985.
Compare Fukagawa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Fukagawa