Tadotsu climate — normals and trends
Tadotsu (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.3 °C and it receives 1,372 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 (27.3 °C on average) and the coldest is January (6.0 °C). Rainfall peaks in June.
Tadotsu averages 4 frost days, 27 hot days (≥ 30 °C) and 136 rainy days per year.
Tadotsu has warmed by +1.8 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 8 to 0 per year over the period.
The hottest day of the period reached 34.8 °C (on 23 August 1995) and the coldest -5.5 °C (on 4 February 1940).
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
TadotsuKagawa
- coords
- 34.27°, 133.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.3°C
Average daily high
18.8°C
Average daily low
13.8°C
Annual rainfall
1,372mm
Sunshine / day
8.9h
Mean relative humidity
72%
Average peak wind
15.6km/h
Seasonal range
21.3°C
Frost days (< 0 °C)
4 d/yr
Hot days (≥ 30 °C)
27 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
11.9 cm
Average feels-like high
18.9 °C
Average feels-like low
13.0 °C
Average peak gust
34.6 km/h
Tropical nights (≥ 20 °C)
101 d/yr
Solar radiation
14.6 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
34.8 °C
23 August 1995
Coldest day
-5.5 °C
4 February 1940
Wettest day
142 mm
11 September 1957
Windiest day
65.3 km/h
27 September 1991
Strongest gust
141.5 km/h
4 September 1993
Hottest feels-like
41.7 °C
22 August 2024
Coldest feels-like
-12.3 °C
26 February 1981
Snowiest day
18.7 cm
15 February 1968
Sunniest day
14.0 h
10 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 | 8.5 °C | +0.1 °C | 29 mm | -30 mm |
| Feb | 7.6 °C | -1.4 °C | 42 mm | -25 mm |
| Mar | 12.7 °C | +0.4 °C | 98 mm | +3 mm |
| Apr | 17.7 °C | +0.3 °C | 61 mm | -53 mm |
| May | 21.3 °C | 0.0 °C | 183 mm | +49 mm |
| Jun | 25.9 °C | +1.4 °C | 227 mm | +30 mm |
| Jul | 30.9 °C | +2.5 °C | 61 mm | -109 mm |
| Aug | 31.3 °C | +1.5 °C | 116 mm | -4 mm |
| Sep | 29.0 °C | +2.6 °C | 157 mm | -12 mm |
| Oct | 23.2 °C | +2.1 °C | 184 mm | +68 mm |
| Nov | 16.6 °C | +0.5 °C | 25 mm | -49 mm |
| Dec | 12.1 °C | +1.1 °C | 42 mm | -15 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 Tadotsu?
Tadotsu has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.3 °C and it receives 1,372 mm of precipitation per year.
What is the hottest day ever recorded in Tadotsu?
The hottest day measured in Tadotsu between 1940 and 2025 was 23 August 1995, reaching 34.8 °C.
What is the coldest day in Tadotsu?
The coldest day measured in Tadotsu between 1940 and 2025 was 4 February 1940, at -5.5 °C.
Does it snow in Tadotsu?
Yes. Tadotsu gets on average 11.9 cm of snow per year and has around 4 frost days.
Has the climate of Tadotsu warmed?
Yes: Tadotsu warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tadotsu?
The wettest day measured in Tadotsu between 1940 and 2025 was 11 September 1957, with 142 mm of rain in 24 hours.
What was the windiest day in Tadotsu?
The windiest day measured in Tadotsu between 1940 and 2025 was 27 September 1991, with winds reaching 65.3 km/h.
What is the warmest month in Tadotsu?
The warmest month in Tadotsu is August (27.3 °C on average); the coldest is January (6.0 °C).
How much does it rain in Tadotsu?
Tadotsu receives on average 1,372 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Tadotsu?
Tadotsu 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 Tadotsu?
The heaviest 24-hour snowfall measured in Tadotsu between 1940 and 2025 was 15 February 1968, with 18.7 cm.
Are there tropical nights in Tadotsu?
Yes: Tadotsu has on average 101 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tadotsu?
In Tadotsu, between 1940 and 2025, the highest apparent temperature reached 41.7 °C on 22 August 2024, and the lowest was -12.3 °C on 26 February 1981.
Compare Tadotsu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tadotsu