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Koriyama

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Koriyama Weather and climate

Data source:Meteostat
Update date:2025-09

Koriyama year round climate
  • Spring (March–May): Average 5.6–15.3°C, mild climate but with potentially large temperature variations, relatively high rainfall. Common activities: flower viewing, outings. Recommended clothing: light jacket, long-sleeved shirt; bring rain gear.
  • Summer (June–August): Average 19.7–25.3°C, hot and humid, abundant rainfall. Common activities: visiting summer resorts, playing in streams. Recommended clothing: light and breathable clothing such as short-sleeved T-shirts and shorts; bring rain gear.
  • Autumn (September–November): Average 9.4–22.1°C, pleasant and comfortable climate, decreasing rainfall. Common activities: viewing autumn leaves, hiking. Recommended clothing: comfortable long-sleeved shirts and jackets; significant temperature variations between morning and evening, pay attention to keeping warm.
  • Winter (December–February): Average 0.6–3.0°C, cold and dry, low probability of snowfall. Common activities: indoor activities, onsen experiences. Recommended clothing: warm and thick coats, sweaters, scarves, gloves and hats.
Koriyama climatological average

Annual average temperature: approx. 12.8°C / Annual rainfall: approx. 1294 mm / Summer humidity: 70%–80% / Rainiest month: June

Koriyama monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
0.6°C
35.4
February
1.3°C
53.1
March
5.6°C
113
April
11.9°C
112.8
May
15.3°C
163.3
June
19.7°C
163.4
July
24.6°C
152.9
August
25.3°C
124.3
September
22.1°C
161.1
October
14.4°C
93.9
November
9.4°C
93.6
December
3°C
27.8
Koriyama weather for the next seven days
11/18
Tuesday
Patchy rain nearby
6.9°C/1.9°C
11/19
Wednesday
Patchy rain nearby
7.2°C/-1.7°C
11/20
Thursday
Sunny
10.3°C/-2.5°C
11/21
Friday
Patchy rain nearby
13.5°C/-0.6°C
11/22
Saturday
Patchy rain nearby
9.1°C/0.5°C
11/23
Sunday
Sunny
12°C/-0.8°C
11/24
Monday
Overcast
14.9°C/2.5°C