Shima climate — normals and trends
Shima (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.1 °C and it receives 1,903 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 (26.8 °C on average) and the coldest is January (7.7 °C). Rainfall peaks in June.
Shima averages 0 frost days, 7 hot days (≥ 30 °C) and 141 rainy days per year.
Shima has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.4 °C (on 16 August 2024) and the coldest -1.5 °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
ShimaMie
- coords
- 34.33°, 136.83°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.1°C
Average daily high
19.0°C
Average daily low
15.2°C
Annual rainfall
1,903mm
Sunshine / day
9.0h
Mean relative humidity
72%
Average peak wind
26.3km/h
Seasonal range
19.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
141 d/yr
Annual snowfall
1.0 cm
Average feels-like high
18.6 °C
Average feels-like low
13.1 °C
Average peak gust
43.3 km/h
Tropical nights (≥ 20 °C)
116 d/yr
Solar radiation
15.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.59 · 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
34.4 °C
16 August 2024
Coldest day
-1.5 °C
26 February 1981
Wettest day
246 mm
12 October 2019
Windiest day
122.9 km/h
26 September 1959
Strongest gust
231.5 km/h
26 September 1959
Hottest feels-like
41.3 °C
15 August 2020
Coldest feels-like
-10.1 °C
26 February 1981
Snowiest day
8.8 cm
15 February 1968
Sunniest day
14.0 h
13 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 | 10.8 °C | +0.8 °C | 40 mm | -27 mm |
| Feb | 9.9 °C | -0.5 °C | 32 mm | -50 mm |
| Mar | 14.8 °C | +1.6 °C | 139 mm | +10 mm |
| Apr | 18.9 °C | +1.5 °C | 127 mm | -25 mm |
| May | 21.3 °C | +0.6 °C | 313 mm | +133 mm |
| Jun | 25.5 °C | +1.9 °C | 136 mm | -117 mm |
| Jul | 29.0 °C | +2.0 °C | 104 mm | -89 mm |
| Aug | 30.2 °C | +1.8 °C | 36 mm | -131 mm |
| Sep | 28.5 °C | +2.4 °C | 237 mm | -9 mm |
| Oct | 23.0 °C | +1.4 °C | 323 mm | +85 mm |
| Nov | 17.7 °C | +0.5 °C | 36 mm | -90 mm |
| Dec | 13.8 °C | +1.3 °C | 118 mm | +47 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 Shima?
Shima has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.1 °C and it receives 1,903 mm of precipitation per year.
What is the hottest day ever recorded in Shima?
The hottest day measured in Shima between 1940 and 2025 was 16 August 2024, reaching 34.4 °C.
What is the coldest day in Shima?
The coldest day measured in Shima between 1940 and 2025 was 26 February 1981, at -1.5 °C.
Does it snow in Shima?
Almost never: Shima sees virtually no snow, with about 0 frost days per year.
Has the climate of Shima warmed?
Yes: Shima warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Shima?
The wettest day measured in Shima between 1940 and 2025 was 12 October 2019, with 246 mm of rain in 24 hours.
What was the windiest day in Shima?
The windiest day measured in Shima between 1940 and 2025 was 26 September 1959, with winds reaching 122.9 km/h.
What is the warmest month in Shima?
The warmest month in Shima is August (26.8 °C on average); the coldest is January (7.7 °C).
How much does it rain in Shima?
Shima receives on average 1,903 mm of precipitation per year, spread over about 141 rainy days.
Is it sunny in Shima?
Shima gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Shima?
The heaviest 24-hour snowfall measured in Shima between 1940 and 2025 was 15 February 1968, with 8.8 cm.
Are there tropical nights in Shima?
Yes: Shima has on average 116 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Shima?
In Shima, between 1940 and 2025, the highest apparent temperature reached 41.3 °C on 15 August 2020, and the lowest was -10.1 °C on 26 February 1981.
Compare Shima with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Shima