Obihiro climate — normals and trends
Obihiro (Japan) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.0 °C and it receives 1,151 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 (20.0 °C on average) and the coldest is January (-9.3 °C). Rainfall peaks in September.
Obihiro averages 163 frost days, 3 hot days (≥ 30 °C) and 125 rainy days per year.
Obihiro has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 175 to 151 per year over the period.
The hottest day of the period reached 36.0 °C (on 24 July 2025) and the coldest -27.1 °C (on 9 January 1953).
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
ObihiroHokkaido
- coords
- 42.92°, 143.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.0°C
Average daily high
10.9°C
Average daily low
1.3°C
Annual rainfall
1,151mm
Sunshine / day
8.2h
Mean relative humidity
76%
Average peak wind
13.9km/h
Seasonal range
29.3°C
Frost days (< 0 °C)
163 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
159.3 cm
Average feels-like high
8.9 °C
Average feels-like low
-1.2 °C
Average peak gust
30.7 km/h
Tropical nights (≥ 20 °C)
7 d/yr
Solar radiation
13.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.60 · 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
36.0 °C
24 July 2025
Coldest day
-27.1 °C
9 January 1953
Wettest day
146 mm
5 August 1981
Windiest day
53.6 km/h
10 May 1954
Strongest gust
117.4 km/h
10 May 1954
Hottest feels-like
41.7 °C
9 August 1999
Coldest feels-like
-32.0 °C
29 January 1979
Snowiest day
45.6 cm
17 January 1975
Sunniest day
15.0 h
9 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 | 0.5 °C | +3.9 °C | 29 mm | -21 mm |
| Feb | 0.4 °C | +2.6 °C | 68 mm | +23 mm |
| Mar | 4.1 °C | +1.5 °C | 72 mm | +2 mm |
| Apr | 11.7 °C | +1.2 °C | 131 mm | +42 mm |
| May | 18.8 °C | +2.5 °C | 115 mm | +12 mm |
| Jun | 25.4 °C | +6.5 °C | 80 mm | -25 mm |
| Jul | 28.7 °C | +6.4 °C | 89 mm | -29 mm |
| Aug | 26.5 °C | +2.8 °C | 121 mm | -36 mm |
| Sep | 23.6 °C | +3.3 °C | 208 mm | +49 mm |
| Oct | 14.4 °C | -0.2 °C | 64 mm | -48 mm |
| Nov | 7.4 °C | +0.4 °C | 127 mm | +46 mm |
| Dec | 0.9 °C | +1.1 °C | 116 mm | +56 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 Obihiro?
Obihiro has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.0 °C and it receives 1,151 mm of precipitation per year.
What is the hottest day ever recorded in Obihiro?
The hottest day measured in Obihiro between 1940 and 2025 was 24 July 2025, reaching 36.0 °C.
What is the coldest day in Obihiro?
The coldest day measured in Obihiro between 1940 and 2025 was 9 January 1953, at -27.1 °C.
Does it snow in Obihiro?
Yes. Obihiro gets on average 159.3 cm of snow per year and has around 163 frost days.
Has the climate of Obihiro warmed?
Yes: Obihiro warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Obihiro?
The wettest day measured in Obihiro between 1940 and 2025 was 5 August 1981, with 146 mm of rain in 24 hours.
What was the windiest day in Obihiro?
The windiest day measured in Obihiro between 1940 and 2025 was 10 May 1954, with winds reaching 53.6 km/h.
What is the warmest month in Obihiro?
The warmest month in Obihiro is August (20.0 °C on average); the coldest is January (-9.3 °C).
How much does it rain in Obihiro?
Obihiro receives on average 1,151 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Obihiro?
Obihiro 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 Obihiro?
The heaviest 24-hour snowfall measured in Obihiro between 1940 and 2025 was 17 January 1975, with 45.6 cm.
Are there tropical nights in Obihiro?
Yes: Obihiro has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Obihiro?
In Obihiro, between 1940 and 2025, the highest apparent temperature reached 41.7 °C on 9 August 1999, and the lowest was -32.0 °C on 29 January 1979.
Compare Obihiro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Obihiro