Best Time to Visit Iwaki
Best time: Jul, May, Aug.
Aug is warmest (27.5°C high); Sep is rainiest (178 mm).
Iwaki weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 8 | -1.6 | 38 | 4.2 |
| Feb | 8 | -1.2 | 57 | 5.2 |
| Mar | 10.6 | 1.3 | 92 | 6.4 |
| Apr | 15.8 | 6.3 | 118 | 7.5 |
| May | 19.6 | 11 | 134 | 8.3 |
| Jun | 21.9 | 15.3 | 154 | 7.3 |
| Jul | 25.2 | 19.1 | 122 | 7.4 |
| Aug | 27.5 | 20.9 | 137 | 7.7 |
| Sep | 24.6 | 17.7 | 178 | 5.8 |
| Oct | 20.2 | 11.5 | 160 | 4.8 |
| Nov | 15.4 | 5.5 | 79 | 3.9 |
| Dec | 10.7 | 0.6 | 41 | 3.6 |
Average high temperature
Best months by activity
Overall: JulMayAug
Beaches: Aug
Hiking: DecNovMayJan
Sightseeing: JulMayAugNov
Iwaki quick facts
What to pack
Cold months (Jan, Feb, Mar, Dec): warm layers and a coat.
Wet months (Mar, Apr, May, Jun, Jul, Aug, Sep, Oct): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Iwaki?
Jul, May, Aug.
What is the rainiest month?
Sep, about 178 mm.
What is the warmest month?
Aug, with average highs of 27.5°C.
Where to stay
See Iwaki hotels · Book Iwaki tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.