Nakamura climate — normals and trends
Nakamura (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.2 °C and it receives 2,161 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 (26.6 °C on average) and the coldest is January (7.6 °C). Rainfall peaks in June.
Nakamura averages 1 frost days, 9 hot days (≥ 30 °C) and 144 rainy days per year.
Nakamura has warmed by +1.8 °C between 1940 and 2025, or +0.21 °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 34.3 °C (on 16 August 2020) and the coldest -3.5 °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
NakamuraKochi
- coords
- 32.98°, 132.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.2°C
Average daily high
19.5°C
Average daily low
14.9°C
Annual rainfall
2,161mm
Sunshine / day
8.7h
Mean relative humidity
74%
Average peak wind
21.0km/h
Seasonal range
19.0°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
144 d/yr
Annual snowfall
0.9 cm
Average feels-like high
19.5 °C
Average feels-like low
13.8 °C
Average peak gust
37.8 km/h
Tropical nights (≥ 20 °C)
113 d/yr
Solar radiation
15.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °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
34.3 °C
16 August 2020
Coldest day
-3.5 °C
26 February 1981
Wettest day
229 mm
9 August 1963
Windiest day
86.8 km/h
27 August 1982
Strongest gust
167.4 km/h
30 August 2004
Hottest feels-like
41.2 °C
16 August 2020
Coldest feels-like
-11.4 °C
26 February 1981
Snowiest day
4.4 cm
19 January 1984
Sunniest day
13.9 h
20 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 | 10.5 °C | +0.4 °C | 38 mm | -32 mm |
| Feb | 9.3 °C | -1.6 °C | 63 mm | -34 mm |
| Mar | 15.3 °C | +1.3 °C | 124 mm | -22 mm |
| Apr | 18.7 °C | +0.6 °C | 122 mm | -70 mm |
| May | 21.5 °C | +0.1 °C | 326 mm | +104 mm |
| Jun | 25.9 °C | +1.8 °C | 221 mm | -99 mm |
| Jul | 29.0 °C | +1.5 °C | 202 mm | -34 mm |
| Aug | 29.9 °C | +1.4 °C | 91 mm | -140 mm |
| Sep | 28.7 °C | +2.3 °C | 279 mm | +11 mm |
| Oct | 24.6 °C | +2.4 °C | 378 mm | +188 mm |
| Nov | 18.4 °C | +0.8 °C | 57 mm | -62 mm |
| Dec | 14.4 °C | +1.8 °C | 42 mm | -30 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 Nakamura?
Nakamura has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.2 °C and it receives 2,161 mm of precipitation per year.
What is the hottest day ever recorded in Nakamura?
The hottest day measured in Nakamura between 1940 and 2025 was 16 August 2020, reaching 34.3 °C.
What is the coldest day in Nakamura?
The coldest day measured in Nakamura between 1940 and 2025 was 26 February 1981, at -3.5 °C.
Does it snow in Nakamura?
Almost never: Nakamura sees virtually no snow, with about 1 frost days per year.
Has the climate of Nakamura warmed?
Yes: Nakamura warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nakamura?
The wettest day measured in Nakamura between 1940 and 2025 was 9 August 1963, with 229 mm of rain in 24 hours.
What was the windiest day in Nakamura?
The windiest day measured in Nakamura between 1940 and 2025 was 27 August 1982, with winds reaching 86.8 km/h.
What is the warmest month in Nakamura?
The warmest month in Nakamura is August (26.6 °C on average); the coldest is January (7.6 °C).
How much does it rain in Nakamura?
Nakamura receives on average 2,161 mm of precipitation per year, spread over about 144 rainy days.
Is it sunny in Nakamura?
Nakamura gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Nakamura?
The heaviest 24-hour snowfall measured in Nakamura between 1940 and 2025 was 19 January 1984, with 4.4 cm.
Are there tropical nights in Nakamura?
Yes: Nakamura has on average 113 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nakamura?
In Nakamura, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 16 August 2020, and the lowest was -11.4 °C on 26 February 1981.
Compare Nakamura with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nakamura