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Iwaki
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Best time to visit Iwaki
Data source：Meteostat
Last updated：2025-09
Weather in Iwaki throughout the year
- Spring (March–May): 8.6–17.1°C 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): 21.0–26.6°C 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): 17.9–24.3°C 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): 4.5–6.8°C on average, cold and dry, with low rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, sweater, scarf, gloves.
Weather in Iwaki
Annual average temperature: approx. 15°C / Annual rainfall: approx. 1431 mm / Summer humidity: 70%–80% / Rainiest month: September
Iwaki weather by month
Month
Temperature (°C)
Rainfall (mm)
January
4.5°C
52
February
5.1°C
45.5
March
8.6°C
142.3
April
13.8°C
123
May
17.1°C
172.1
June
21°C
155.8
July
25.6°C
114.5
August
26.6°C
101.8
September
24.3°C
265.5
October
17.9°C
120.4
November
12.9°C
106.3
December
6.8°C
32.5
7-day weather forecast for Iwaki
11/13
Friday
Sunny
19.8°C/9.4°C
11/14
Saturday
Overcast
17.4°C/11.4°C
11/15
Sunday
Overcast
15.4°C/13.5°C
11/16
Monday
Partly Cloudy
17.5°C/9.3°C
11/17
Tuesday
Light drizzle
10.7°C/8.1°C
11/18
Wednesday
Moderate rain
16.9°C/11°C
11/19
Thursday
Partly Cloudy
14.6°C/8.9°C
