Hamada climate — normals and trends
Hamada (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 1,734 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 (6.9 °C). Rainfall peaks in July.
Hamada averages 1 frost days, 3 hot days (≥ 30 °C) and 167 rainy days per year.
Hamada has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The number of frost days there went from about 2 to 0 per year over the period.
The hottest day of the period reached 32.5 °C (on 10 August 1994) and the coldest -4.6 °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
HamadaShimane
- coords
- 34.88°, 132.08°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.2°C
Average daily high
17.6°C
Average daily low
14.8°C
Annual rainfall
1,734mm
Sunshine / day
8.6h
Mean relative humidity
74%
Average peak wind
26.9km/h
Seasonal range
19.9°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
167 d/yr
Annual snowfall
41.3 cm
Average feels-like high
16.8 °C
Average feels-like low
12.6 °C
Average peak gust
38.8 km/h
Tropical nights (≥ 20 °C)
107 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.37 · 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
10 August 1994
Coldest day
-4.6 °C
26 February 1981
Wettest day
169 mm
4 September 1945
Windiest day
84.1 km/h
27 September 1991
Strongest gust
146.5 km/h
7 September 2004
Hottest feels-like
40.9 °C
5 August 2010
Coldest feels-like
-16.5 °C
26 February 1981
Snowiest day
16.3 cm
10 February 2017
Sunniest day
14.0 h
10 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 | 9.0 °C | +0.5 °C | 97 mm | -53 mm |
| Feb | 7.5 °C | -1.1 °C | 128 mm | -2 mm |
| Mar | 11.4 °C | +0.2 °C | 196 mm | +64 mm |
| Apr | 15.5 °C | +0.3 °C | 96 mm | -27 mm |
| May | 18.8 °C | -0.1 °C | 169 mm | +37 mm |
| Jun | 23.4 °C | +1.2 °C | 173 mm | -11 mm |
| Jul | 28.6 °C | +2.7 °C | 40 mm | -169 mm |
| Aug | 29.2 °C | +1.3 °C | 261 mm | +139 mm |
| Sep | 27.7 °C | +2.8 °C | 205 mm | +24 mm |
| Oct | 22.4 °C | +2.1 °C | 159 mm | +46 mm |
| Nov | 17.1 °C | +1.1 °C | 69 mm | -44 mm |
| Dec | 13.1 °C | +1.9 °C | 122 mm | -22 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 Hamada?
Hamada has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 1,734 mm of precipitation per year.
What is the hottest day ever recorded in Hamada?
The hottest day measured in Hamada between 1940 and 2025 was 10 August 1994, reaching 32.5 °C.
What is the coldest day in Hamada?
The coldest day measured in Hamada between 1940 and 2025 was 26 February 1981, at -4.6 °C.
Does it snow in Hamada?
Yes. Hamada gets on average 41.3 cm of snow per year and has around 1 frost days.
Has the climate of Hamada warmed?
Yes: Hamada warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hamada?
The wettest day measured in Hamada between 1940 and 2025 was 4 September 1945, with 169 mm of rain in 24 hours.
What was the windiest day in Hamada?
The windiest day measured in Hamada between 1940 and 2025 was 27 September 1991, with winds reaching 84.1 km/h.
What is the warmest month in Hamada?
The warmest month in Hamada is August (26.8 °C on average); the coldest is January (6.9 °C).
How much does it rain in Hamada?
Hamada receives on average 1,734 mm of precipitation per year, spread over about 167 rainy days.
Is it sunny in Hamada?
Hamada 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 Hamada?
The heaviest 24-hour snowfall measured in Hamada between 1940 and 2025 was 10 February 2017, with 16.3 cm.
Are there tropical nights in Hamada?
Yes: Hamada has on average 107 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hamada?
In Hamada, between 1940 and 2025, the highest apparent temperature reached 40.9 °C on 5 August 2010, and the lowest was -16.5 °C on 26 February 1981.
Compare Hamada with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hamada