Hashimoto climate — normals and trends
Hashimoto (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.4 °C and it receives 1,726 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 (26.1 °C on average) and the coldest is January (3.1 °C). Rainfall peaks in June.
Hashimoto averages 54 frost days, 34 hot days (≥ 30 °C) and 155 rainy days per year.
Hashimoto has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 81 to 27 per year over the period.
The hottest day of the period reached 37.1 °C (on 16 July 1994) and the coldest -13.0 °C (on 17 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
HashimotoWakayama
- coords
- 34.32°, 135.62°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.4°C
Average daily high
18.6°C
Average daily low
10.3°C
Annual rainfall
1,726mm
Sunshine / day
8.9h
Mean relative humidity
74%
Average peak wind
13.4km/h
Seasonal range
23.0°C
Frost days (< 0 °C)
54 d/yr
Hot days (≥ 30 °C)
34 d/yr
Rainy days (≥ 1 mm)
155 d/yr
Annual snowfall
24.9 cm
Average feels-like high
18.3 °C
Average feels-like low
9.3 °C
Average peak gust
39.6 km/h
Tropical nights (≥ 20 °C)
73 d/yr
Solar radiation
14.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.70 · 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
37.1 °C
16 July 1994
Coldest day
-13.0 °C
17 February 1977
Wettest day
173 mm
22 October 2017
Windiest day
60.8 km/h
26 September 1959
Strongest gust
176.4 km/h
4 September 2018
Hottest feels-like
42.9 °C
8 August 1994
Coldest feels-like
-17.3 °C
17 February 1977
Snowiest day
25.5 cm
15 February 1968
Sunniest day
14.0 h
3 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 | 7.8 °C | +0.8 °C | 40 mm | -37 mm |
| Feb | 6.5 °C | -1.3 °C | 48 mm | -38 mm |
| Mar | 13.6 °C | +1.7 °C | 86 mm | -35 mm |
| Apr | 19.0 °C | +1.4 °C | 83 mm | -54 mm |
| May | 22.4 °C | +0.5 °C | 272 mm | +108 mm |
| Jun | 27.0 °C | +2.0 °C | 220 mm | -39 mm |
| Jul | 32.2 °C | +3.4 °C | 96 mm | -124 mm |
| Aug | 32.1 °C | +1.8 °C | 193 mm | +43 mm |
| Sep | 29.7 °C | +3.1 °C | 137 mm | -56 mm |
| Oct | 22.6 °C | +1.8 °C | 244 mm | +92 mm |
| Nov | 15.7 °C | +0.3 °C | 44 mm | -52 mm |
| Dec | 11.6 °C | +1.8 °C | 72 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 Hashimoto?
Hashimoto has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.4 °C and it receives 1,726 mm of precipitation per year.
What is the hottest day ever recorded in Hashimoto?
The hottest day measured in Hashimoto between 1940 and 2025 was 16 July 1994, reaching 37.1 °C.
What is the coldest day in Hashimoto?
The coldest day measured in Hashimoto between 1940 and 2025 was 17 February 1977, at -13.0 °C.
Does it snow in Hashimoto?
Yes. Hashimoto gets on average 24.9 cm of snow per year and has around 54 frost days.
Has the climate of Hashimoto warmed?
Yes: Hashimoto warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hashimoto?
The wettest day measured in Hashimoto between 1940 and 2025 was 22 October 2017, with 173 mm of rain in 24 hours.
What was the windiest day in Hashimoto?
The windiest day measured in Hashimoto between 1940 and 2025 was 26 September 1959, with winds reaching 60.8 km/h.
What is the warmest month in Hashimoto?
The warmest month in Hashimoto is August (26.1 °C on average); the coldest is January (3.1 °C).
How much does it rain in Hashimoto?
Hashimoto receives on average 1,726 mm of precipitation per year, spread over about 155 rainy days.
Is it sunny in Hashimoto?
Hashimoto gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Hashimoto?
The heaviest 24-hour snowfall measured in Hashimoto between 1940 and 2025 was 15 February 1968, with 25.5 cm.
Are there tropical nights in Hashimoto?
Yes: Hashimoto has on average 73 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hashimoto?
In Hashimoto, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 8 August 1994, and the lowest was -17.3 °C on 17 February 1977.
Compare Hashimoto with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hashimoto