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Population Review

Climate normals · 1970–2000

Iwaki Climate

Iwaki is a city in Japan (08) with a population of about 357,309. Its average annual temperature is 13°C (55°F), with roughly 1314 mm of rain per year.

13°C

Avg Temp

1314

Precip (mm/yr)

Aug

Hottest Month

Jan

Coldest Month


Iwaki Climate

Iwaki has an average annual temperature of 13°C (55°F) and receives about 1314 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.

13°C

Avg Temp

1314

Precip (mm/yr)

Aug

Hottest Month

Jan

Coldest Month

-5°5°15°25°178mmJFMAMJJASOND
Avg temp (°C) Precipitation (mm)
Iwaki — monthly temperature & precipitation (1970–2000 normals) · Source: WorldClim 2.1
MonthAvg (°C/°F)Precip
January3° / 38°38 mm
February3° / 38°57 mm
March6° / 43°92 mm
April11° / 52°119 mm
May15° / 59°134 mm
June19° / 65°155 mm
July22° / 72°123 mm
August24° / 75°138 mm
September21° / 70°178 mm
October16° / 60°160 mm
November10° / 51°79 mm
December6° / 42°41 mm

1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.

Best time to visit Iwaki

The most comfortable months to visit Iwaki are typically July, September and August, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 27°C high). The coldest is January (near -2°C low). September is usually the wettest month.

JulySeptemberAugust

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Frequently Asked Questions

The most comfortable months to visit Iwaki are typically July, September and August, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).

Iwaki, Japan has an average annual temperature of 13°C and about 1314 mm of precipitation per year. The warmest month is August and the coldest is January.

In August, the hottest month, daily highs in Iwaki average about 27°C (81°F).

Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.