Uto climate — normals and trends
Uto (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.8 °C and it receives 1,838 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 (26.4 °C on average) and the coldest is January (5.2 °C). Rainfall peaks in June.
Uto averages 14 frost days, 25 hot days (≥ 30 °C) and 151 rainy days per year.
Uto has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 24 to 4 per year over the period.
The hottest day of the period reached 35.0 °C (on 23 August 2016) and the coldest -10.6 °C (on 19 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
UtoKumamoto
- coords
- 32.68°, 130.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.8°C
Average daily high
19.1°C
Average daily low
12.6°C
Annual rainfall
1,838mm
Sunshine / day
8.1h
Mean relative humidity
75%
Average peak wind
12.8km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
14 d/yr
Hot days (≥ 30 °C)
25 d/yr
Rainy days (≥ 1 mm)
151 d/yr
Annual snowfall
10.8 cm
Average feels-like high
19.3 °C
Average feels-like low
12.1 °C
Average peak gust
30.7 km/h
Tropical nights (≥ 20 °C)
93 d/yr
Solar radiation
13.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.69 · 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
35.0 °C
23 August 2016
Coldest day
-10.6 °C
19 February 1977
Wettest day
181 mm
3 July 2019
Windiest day
69.3 km/h
27 September 1991
Strongest gust
167.8 km/h
27 September 1991
Hottest feels-like
41.3 °C
18 August 2024
Coldest feels-like
-14.9 °C
19 February 1977
Snowiest day
11.3 cm
15 February 1968
Sunniest day
13.8 h
2 June 1942
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 | 8.5 °C | +0.3 °C | 36 mm | -40 mm |
| Feb | 7.7 °C | -1.7 °C | 64 mm | -33 mm |
| Mar | 14.1 °C | +1.0 °C | 148 mm | +13 mm |
| Apr | 18.7 °C | +0.5 °C | 115 mm | -43 mm |
| May | 22.1 °C | +0.1 °C | 269 mm | +79 mm |
| Jun | 26.3 °C | +1.6 °C | 371 mm | +12 mm |
| Jul | 31.6 °C | +3.4 °C | 47 mm | -220 mm |
| Aug | 30.8 °C | +1.2 °C | 219 mm | +71 mm |
| Sep | 29.2 °C | +2.5 °C | 127 mm | -29 mm |
| Oct | 25.0 °C | +3.2 °C | 75 mm | -21 mm |
| Nov | 17.3 °C | +1.0 °C | 41 mm | -44 mm |
| Dec | 12.6 °C | +2.0 °C | 59 mm | -14 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 Uto?
Uto has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.8 °C and it receives 1,838 mm of precipitation per year.
What is the hottest day ever recorded in Uto?
The hottest day measured in Uto between 1940 and 2025 was 23 August 2016, reaching 35.0 °C.
What is the coldest day in Uto?
The coldest day measured in Uto between 1940 and 2025 was 19 February 1977, at -10.6 °C.
Does it snow in Uto?
Yes. Uto gets on average 10.8 cm of snow per year and has around 14 frost days.
Has the climate of Uto warmed?
Yes: Uto warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Uto?
The wettest day measured in Uto between 1940 and 2025 was 3 July 2019, with 181 mm of rain in 24 hours.
What was the windiest day in Uto?
The windiest day measured in Uto between 1940 and 2025 was 27 September 1991, with winds reaching 69.3 km/h.
What is the warmest month in Uto?
The warmest month in Uto is August (26.4 °C on average); the coldest is January (5.2 °C).
How much does it rain in Uto?
Uto receives on average 1,838 mm of precipitation per year, spread over about 151 rainy days.
Is it sunny in Uto?
Uto gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Uto?
The heaviest 24-hour snowfall measured in Uto between 1940 and 2025 was 15 February 1968, with 11.3 cm.
Are there tropical nights in Uto?
Yes: Uto has on average 93 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Uto?
In Uto, between 1940 and 2025, the highest apparent temperature reached 41.3 °C on 18 August 2024, and the lowest was -14.9 °C on 19 February 1977.
Compare Uto with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Uto