Yakami climate — normals and trends
Yakami (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 1,596 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 (27.0 °C on average) and the coldest is January (6.2 °C). Rainfall peaks in June.
Yakami averages 2 frost days, 20 hot days (≥ 30 °C) and 140 rainy days per year.
Yakami 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 4 to 0 per year over the period.
The hottest day of the period reached 34.5 °C (on 4 August 2025) and the coldest -3.8 °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
YakamiTokushima
- coords
- 34.14°, 134.50°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.2°C
Average daily high
18.7°C
Average daily low
13.7°C
Annual rainfall
1,596mm
Sunshine / day
9.0h
Mean relative humidity
73%
Average peak wind
20.2km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
5.4 cm
Average feels-like high
18.5 °C
Average feels-like low
12.3 °C
Average peak gust
39.0 km/h
Tropical nights (≥ 20 °C)
100 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.64 · 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
34.5 °C
4 August 2025
Coldest day
-3.8 °C
26 February 1981
Wettest day
209 mm
20 October 2004
Windiest day
76.4 km/h
26 September 1959
Strongest gust
160.9 km/h
30 August 2004
Hottest feels-like
41.1 °C
16 August 1998
Coldest feels-like
-12.4 °C
26 February 1981
Snowiest day
20.1 cm
15 February 1968
Sunniest day
14.0 h
28 May 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 | 8.9 °C | +0.2 °C | 29 mm | -34 mm |
| Feb | 7.9 °C | -1.3 °C | 33 mm | -39 mm |
| Mar | 12.6 °C | +0.2 °C | 75 mm | -22 mm |
| Apr | 17.6 °C | +0.4 °C | 67 mm | -55 mm |
| May | 21.2 °C | +0.3 °C | 234 mm | +85 mm |
| Jun | 25.7 °C | +1.7 °C | 212 mm | -12 mm |
| Jul | 30.6 °C | +2.7 °C | 30 mm | -170 mm |
| Aug | 31.3 °C | +2.0 °C | 175 mm | +37 mm |
| Sep | 28.9 °C | +2.7 °C | 151 mm | -70 mm |
| Oct | 23.2 °C | +2.1 °C | 246 mm | +88 mm |
| Nov | 16.8 °C | +0.6 °C | 32 mm | -60 mm |
| Dec | 12.6 °C | +1.3 °C | 49 mm | -9 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 Yakami?
Yakami has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 1,596 mm of precipitation per year.
What is the hottest day ever recorded in Yakami?
The hottest day measured in Yakami between 1940 and 2025 was 4 August 2025, reaching 34.5 °C.
What is the coldest day in Yakami?
The coldest day measured in Yakami between 1940 and 2025 was 26 February 1981, at -3.8 °C.
Does it snow in Yakami?
Yes. Yakami gets on average 5.4 cm of snow per year and has around 2 frost days.
Has the climate of Yakami warmed?
Yes: Yakami warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yakami?
The wettest day measured in Yakami between 1940 and 2025 was 20 October 2004, with 209 mm of rain in 24 hours.
What was the windiest day in Yakami?
The windiest day measured in Yakami between 1940 and 2025 was 26 September 1959, with winds reaching 76.4 km/h.
What is the warmest month in Yakami?
The warmest month in Yakami is August (27.0 °C on average); the coldest is January (6.2 °C).
How much does it rain in Yakami?
Yakami receives on average 1,596 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Yakami?
Yakami 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 Yakami?
The heaviest 24-hour snowfall measured in Yakami between 1940 and 2025 was 15 February 1968, with 20.1 cm.
Are there tropical nights in Yakami?
Yes: Yakami has on average 100 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yakami?
In Yakami, between 1940 and 2025, the highest apparent temperature reached 41.1 °C on 16 August 1998, and the lowest was -12.4 °C on 26 February 1981.
Compare Yakami with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yakami