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Iwaki

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Iwaki Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Iwaki year round climate

  • Spring (March–May): 47–62°F on average, mild climate but with relatively high rainfall, especially in April and May. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, comfortable long-sleeved clothing.
  • Summer (June–August): 69–79°F on average, hot and humid, but with relatively low rainfall. Common activities: Swimming at the beach, outdoor activities. Recommended clothing: Light and breathable short-sleeved clothing, shorts, sun hat.
  • Autumn (September–November): 64–75°F on average, pleasant climate, but September has the most rainfall. Common activities: Autumn leaves viewing, outdoor excursions. Recommended clothing: Comfortable long-sleeved clothing, light jacket.
  • Winter (December–February): 40–44°F on average, cold and dry, with low rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, sweater, scarf, gloves.

Iwaki climatological average

Annual average temperature: approx. 59.0°F / Annual rainfall: approx. 1431 mm / Summer humidity: 70%–80% / Rainiest month: September

Iwaki monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
40.1°F
52
February
41.2°F
45.5
March
47.5°F
142.3
April
56.8°F
123
May
62.8°F
172.1
June
69.8°F
155.8
July
78.1°F
114.5
August
79.9°F
101.8
September
75.7°F
265.5
October
64.2°F
120.4
November
55.2°F
106.3
December
44.2°F
32.5

Iwaki weather for the next seven days

5/24
Sunday
Patchy rain nearby
65.6°F/53.3°F
5/25
Monday
Patchy rain nearby
71.2°F/55.5°F
5/26
Tuesday
Partly Cloudy
71.4°F/58.3°F
5/27
Wednesday
Partly Cloudy
73.8°F/60.2°F
5/28
Thursday
Patchy rain nearby
72°F/64.5°F
5/29
Friday
Patchy rain nearby
75.6°F/65.5°F
5/30
Saturday
Patchy rain nearby
74.3°F/62.1°F