Best Time to Visit Iwakuni
Best time: Oct, Nov, May, Jun.
Aug is warmest (30.9°C high); Jun is rainiest (289 mm).
Iwakuni weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 9.5 | 1.8 | 58 | 3.9 |
| Feb | 9.8 | 1.9 | 77 | 4.8 |
| Mar | 12.9 | 4.6 | 128 | 6.1 |
| Apr | 18.3 | 9.6 | 183 | 7.4 |
| May | 22.5 | 14.1 | 180 | 8.2 |
| Jun | 25.5 | 18.6 | 289 | 7.6 |
| Jul | 29.5 | 23 | 229 | 8.2 |
| Aug | 30.9 | 23.8 | 138 | 8.4 |
| Sep | 27.4 | 20.1 | 191 | 6.5 |
| Oct | 22.5 | 14.1 | 113 | 5.6 |
| Nov | 17.2 | 8.7 | 81 | 4.2 |
| Dec | 12.2 | 3.9 | 44 | 3.7 |
Average high temperature
Best months by activity
Overall: OctNovMayJun
Beaches: AugJulJun
Hiking: DecNovMay
Sightseeing: NovOctDecMay
Iwakuni quick facts
What to pack
Cold months (Jan, Feb): 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 Iwakuni?
Oct, Nov, May, Jun.
What is the rainiest month?
Jun, about 289 mm.
What is the warmest month?
Aug, with average highs of 30.9°C.
Where to stay
See Iwakuni hotels · Book Iwakuni tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.