Hōfu climate — normals and trends
Hōfu (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.9 °C and it receives 1,614 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 (26.8 °C on average) and the coldest is January (5.9 °C). Rainfall peaks in June.
Hōfu averages 3 frost days, 18 hot days (≥ 30 °C) and 137 rainy days per year.
Hōfu has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 5 to 1 per year over the period.
The hottest day of the period reached 35.1 °C (on 16 August 2024) and the coldest -5.0 °C (on 16 February 1977).
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
HōfuYamaguchi
- coords
- 34.05°, 131.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.9°C
Average daily high
18.5°C
Average daily low
13.5°C
Annual rainfall
1,614mm
Sunshine / day
8.6h
Mean relative humidity
74%
Average peak wind
19.3km/h
Seasonal range
20.9°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
18 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
8.3 cm
Average feels-like high
18.3 °C
Average feels-like low
12.3 °C
Average peak gust
36.5 km/h
Tropical nights (≥ 20 °C)
96 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.63 · 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
35.1 °C
16 August 2024
Coldest day
-5.0 °C
16 February 1977
Wettest day
198 mm
6 September 2005
Windiest day
80.3 km/h
7 September 2004
Strongest gust
183.6 km/h
7 September 2004
Hottest feels-like
41.9 °C
4 August 2024
Coldest feels-like
-13.9 °C
26 February 1981
Snowiest day
14.8 cm
15 February 1968
Sunniest day
13.9 h
8 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 | 8.8 °C | +0.6 °C | 36 mm | -29 mm |
| Feb | 7.1 °C | -1.8 °C | 66 mm | -14 mm |
| Mar | 13.0 °C | +1.0 °C | 153 mm | +38 mm |
| Apr | 17.1 °C | +0.5 °C | 94 mm | -56 mm |
| May | 20.4 °C | -0.2 °C | 262 mm | +94 mm |
| Jun | 25.3 °C | +1.4 °C | 331 mm | +70 mm |
| Jul | 30.3 °C | +2.6 °C | 68 mm | -170 mm |
| Aug | 31.2 °C | +1.9 °C | 230 mm | +91 mm |
| Sep | 28.8 °C | +2.5 °C | 201 mm | +33 mm |
| Oct | 23.8 °C | +2.3 °C | 83 mm | -14 mm |
| Nov | 17.2 °C | +0.9 °C | 32 mm | -43 mm |
| Dec | 12.3 °C | +1.4 °C | 59 mm | -2 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 Hōfu?
Hōfu has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.9 °C and it receives 1,614 mm of precipitation per year.
What is the hottest day ever recorded in Hōfu?
The hottest day measured in Hōfu between 1940 and 2025 was 16 August 2024, reaching 35.1 °C.
What is the coldest day in Hōfu?
The coldest day measured in Hōfu between 1940 and 2025 was 16 February 1977, at -5.0 °C.
Does it snow in Hōfu?
Yes. Hōfu gets on average 8.3 cm of snow per year and has around 3 frost days.
Has the climate of Hōfu warmed?
Yes: Hōfu warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hōfu?
The wettest day measured in Hōfu between 1940 and 2025 was 6 September 2005, with 198 mm of rain in 24 hours.
What was the windiest day in Hōfu?
The windiest day measured in Hōfu between 1940 and 2025 was 7 September 2004, with winds reaching 80.3 km/h.
What is the warmest month in Hōfu?
The warmest month in Hōfu is August (26.8 °C on average); the coldest is January (5.9 °C).
How much does it rain in Hōfu?
Hōfu receives on average 1,614 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Hōfu?
Hōfu gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Hōfu?
The heaviest 24-hour snowfall measured in Hōfu between 1940 and 2025 was 15 February 1968, with 14.8 cm.
Are there tropical nights in Hōfu?
Yes: Hōfu has on average 96 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hōfu?
In Hōfu, between 1940 and 2025, the highest apparent temperature reached 41.9 °C on 4 August 2024, and the lowest was -13.9 °C on 26 February 1981.
Compare Hōfu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hōfu