Akaike climate — normals and trends
Akaike (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.1 °C and it receives 1,507 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 (27.6 °C on average) and the coldest is January (5.2 °C). Rainfall peaks in June.
Akaike averages 17 frost days, 49 hot days (≥ 30 °C) and 140 rainy days per year.
Akaike has warmed by +2.8 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 30 to 4 per year over the period.
The hottest day of the period reached 37.8 °C (on 28 August 2010) and the coldest -7.9 °C (on 5 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
AkaikeFukuoka
- coords
- 33.69°, 130.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.1°C
Average daily high
20.0°C
Average daily low
12.5°C
Annual rainfall
1,507mm
Sunshine / day
8.4h
Mean relative humidity
73%
Average peak wind
15.8km/h
Seasonal range
22.4°C
Frost days (< 0 °C)
17 d/yr
Hot days (≥ 30 °C)
49 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
9.0 cm
Average feels-like high
19.9 °C
Average feels-like low
11.8 °C
Average peak gust
38.5 km/h
Tropical nights (≥ 20 °C)
92 d/yr
Solar radiation
14.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.75 · 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
37.8 °C
28 August 2010
Coldest day
-7.9 °C
5 February 1940
Wettest day
197 mm
24 June 2012
Windiest day
57.2 km/h
27 September 1991
Strongest gust
150.1 km/h
7 September 2004
Hottest feels-like
43.4 °C
19 July 1967
Coldest feels-like
-13.3 °C
26 February 1981
Snowiest day
26.2 cm
15 February 1968
Sunniest day
13.8 h
14 June 2004
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 | 9.5 °C | +0.8 °C | 26 mm | -31 mm |
| Feb | 8.1 °C | -1.7 °C | 45 mm | -27 mm |
| Mar | 15.2 °C | +1.6 °C | 119 mm | +22 mm |
| Apr | 20.5 °C | +1.4 °C | 53 mm | -70 mm |
| May | 23.1 °C | -0.2 °C | 237 mm | +94 mm |
| Jun | 27.9 °C | +1.8 °C | 325 mm | +74 mm |
| Jul | 33.3 °C | +3.2 °C | 101 mm | -133 mm |
| Aug | 32.9 °C | +1.5 °C | 194 mm | +46 mm |
| Sep | 30.4 °C | +2.9 °C | 171 mm | +3 mm |
| Oct | 24.8 °C | +2.4 °C | 69 mm | -20 mm |
| Nov | 18.1 °C | +1.1 °C | 23 mm | -48 mm |
| Dec | 13.3 °C | +2.0 °C | 50 mm | -4 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 Akaike?
Akaike has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 1,507 mm of precipitation per year.
What is the hottest day ever recorded in Akaike?
The hottest day measured in Akaike between 1940 and 2025 was 28 August 2010, reaching 37.8 °C.
What is the coldest day in Akaike?
The coldest day measured in Akaike between 1940 and 2025 was 5 February 1940, at -7.9 °C.
Does it snow in Akaike?
Yes. Akaike gets on average 9.0 cm of snow per year and has around 17 frost days.
Has the climate of Akaike warmed?
Yes: Akaike warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Akaike?
The wettest day measured in Akaike between 1940 and 2025 was 24 June 2012, with 197 mm of rain in 24 hours.
What was the windiest day in Akaike?
The windiest day measured in Akaike between 1940 and 2025 was 27 September 1991, with winds reaching 57.2 km/h.
What is the warmest month in Akaike?
The warmest month in Akaike is August (27.6 °C on average); the coldest is January (5.2 °C).
How much does it rain in Akaike?
Akaike receives on average 1,507 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Akaike?
Akaike gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Akaike?
The heaviest 24-hour snowfall measured in Akaike between 1940 and 2025 was 15 February 1968, with 26.2 cm.
Are there tropical nights in Akaike?
Yes: Akaike has on average 92 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Akaike?
In Akaike, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 19 July 1967, and the lowest was -13.3 °C on 26 February 1981.
Compare Akaike with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Akaike