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Koriyama

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Koriyama Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Koriyama year round climate

  • Spring (March–May): Average 42–59°F, 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 67–77°F, 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 48–71°F, 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 33–37°F, 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. 55.0°F / Annual rainfall: approx. 1294 mm / Summer humidity: 70%–80% / Rainiest month: June

Koriyama monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
33.1°F
35.4
February
34.3°F
53.1
March
42.1°F
113
April
53.4°F
112.8
May
59.5°F
163.3
June
67.5°F
163.4
July
76.3°F
152.9
August
77.5°F
124.3
September
71.8°F
161.1
October
57.9°F
93.9
November
48.9°F
93.6
December
37.4°F
27.8

Koriyama weather for the next seven days

1/2
Friday
Moderate or heavy snow showers
37.4°F/22.9°F
1/3
Saturday
Patchy light snow
37.3°F/22.1°F
1/4
Sunday
Patchy light snow
39.6°F/26.7°F
1/5
Monday
Patchy moderate snow
42.4°F/23.7°F
1/6
Tuesday
Partly Cloudy
38.4°F/23.4°F
1/7
Wednesday
Mist
37.8°F/23.5°F
1/8
Thursday
Blizzard
29.7°F/24.4°F