Best Time to Visit Niihama
Best time: Aug, Nov, Oct, May.
Aug is warmest (31.7°C high); Jun is rainiest (259 mm).
Niihama weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 9.8 | 0.8 | 46 | 4.1 |
| Feb | 10.4 | 1.4 | 67 | 5.1 |
| Mar | 14 | 4.6 | 102 | 6.4 |
| Apr | 19.5 | 9.9 | 163 | 7.7 |
| May | 23.7 | 14.5 | 172 | 8.3 |
| Jun | 26.6 | 19.1 | 259 | 7.8 |
| Jul | 30.4 | 23.4 | 221 | 8.4 |
| Aug | 31.7 | 24 | 97 | 8.7 |
| Sep | 28.1 | 20.2 | 221 | 6.7 |
| Oct | 23 | 13.9 | 131 | 5.6 |
| Nov | 17.4 | 8.2 | 81 | 4.3 |
| Dec | 12.4 | 3 | 45 | 3.8 |
Average high temperature
Best months by activity
Overall: AugNovOctMay
Beaches: AugJulJun
Hiking: DecJanNovMay
Sightseeing: NovDecOctMay
Niihama quick facts
What to pack
Cold months (Jan, Feb, 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 Niihama?
Aug, Nov, Oct, May.
What is the rainiest month?
Jun, about 259 mm.
What is the warmest month?
Aug, with average highs of 31.7°C.
Where to stay
See Niihama hotels · Book Niihama tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.