Nemuro climate — normals and trends
Nemuro (Japan) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.1 °C and it receives 1,101 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 (16.2 °C on average) and the coldest is February (-3.4 °C). Rainfall peaks in September.
Nemuro averages 114 frost days, 0 hot days (≥ 30 °C) and 121 rainy days per year.
Nemuro has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The number of frost days there went from about 120 to 108 per year over the period.
The hottest day of the period reached 25.1 °C (on 26 August 2023) and the coldest -14.7 °C (on 13 February 2001).
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
NemuroHokkaido
- coords
- 43.32°, 145.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.1°C
Average daily high
7.4°C
Average daily low
4.9°C
Annual rainfall
1,101mm
Sunshine / day
8.2h
Mean relative humidity
81%
Average peak wind
30.8km/h
Seasonal range
19.6°C
Frost days (< 0 °C)
114 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
121 d/yr
Annual snowfall
129.5 cm
Average feels-like high
3.8 °C
Average feels-like low
0.0 °C
Average peak gust
42.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
13.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.26 · 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
25.1 °C
26 August 2023
Coldest day
-14.7 °C
13 February 2001
Wettest day
176 mm
11 September 1992
Windiest day
98.6 km/h
15 January 1948
Strongest gust
144.4 km/h
16 October 2013
Hottest feels-like
29.4 °C
25 August 2023
Coldest feels-like
-22.5 °C
21 February 1998
Snowiest day
59.8 cm
7 April 1976
Sunniest day
14.9 h
29 June 2025
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 | +1.9 °C | 49 mm | -8 mm |
| Feb | -0.2 °C | +1.6 °C | 35 mm | -11 mm |
| Mar | 1.5 °C | +1.0 °C | 86 mm | +12 mm |
| Apr | 4.8 °C | +1.1 °C | 156 mm | +71 mm |
| May | 8.5 °C | +1.7 °C | 88 mm | -10 mm |
| Jun | 13.4 °C | +3.5 °C | 66 mm | -22 mm |
| Jul | 18.5 °C | +4.5 °C | 36 mm | -63 mm |
| Aug | 20.6 °C | +3.5 °C | 91 mm | -42 mm |
| Sep | 19.4 °C | +2.8 °C | 124 mm | -25 mm |
| Oct | 13.3 °C | +0.2 °C | 68 mm | -45 mm |
| Nov | 8.2 °C | +0.4 °C | 102 mm | +12 mm |
| Dec | 3.5 °C | +1.4 °C | 144 mm | +75 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 Nemuro?
Nemuro has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.1 °C and it receives 1,101 mm of precipitation per year.
What is the hottest day ever recorded in Nemuro?
The hottest day measured in Nemuro between 1940 and 2025 was 26 August 2023, reaching 25.1 °C.
What is the coldest day in Nemuro?
The coldest day measured in Nemuro between 1940 and 2025 was 13 February 2001, at -14.7 °C.
Does it snow in Nemuro?
Yes. Nemuro gets on average 129.5 cm of snow per year and has around 114 frost days.
Has the climate of Nemuro warmed?
Yes: Nemuro warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nemuro?
The wettest day measured in Nemuro between 1940 and 2025 was 11 September 1992, with 176 mm of rain in 24 hours.
What was the windiest day in Nemuro?
The windiest day measured in Nemuro between 1940 and 2025 was 15 January 1948, with winds reaching 98.6 km/h.
What is the warmest month in Nemuro?
The warmest month in Nemuro is August (16.2 °C on average); the coldest is February (-3.4 °C).
How much does it rain in Nemuro?
Nemuro receives on average 1,101 mm of precipitation per year, spread over about 121 rainy days.
Is it sunny in Nemuro?
Nemuro 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 Nemuro?
The heaviest 24-hour snowfall measured in Nemuro between 1940 and 2025 was 7 April 1976, with 59.8 cm.
Are there tropical nights in Nemuro?
Yes: Nemuro has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nemuro?
In Nemuro, between 1940 and 2025, the highest apparent temperature reached 29.4 °C on 25 August 2023, and the lowest was -22.5 °C on 21 February 1998.
Compare Nemuro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nemuro