Best Time to Visit Isesaki
Best time: May, Apr, Oct, Nov.
Aug is warmest (31.2°C high); Sep is rainiest (188 mm).
Isesaki weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 9.3 | -2 | 52 | 4.1 |
| Feb | 9.8 | -1.3 | 62 | 4.9 |
| Mar | 12.9 | 1.7 | 70 | 6 |
| Apr | 19.1 | 7.6 | 86 | 7.2 |
| May | 23.8 | 12.5 | 103 | 8.1 |
| Jun | 26.1 | 17.3 | 160 | 7 |
| Jul | 29.6 | 21.1 | 154 | 7.1 |
| Aug | 31.2 | 22.2 | 169 | 7.4 |
| Sep | 26.5 | 18.4 | 188 | 5.5 |
| Oct | 21.2 | 11.8 | 126 | 4.7 |
| Nov | 16.3 | 5.4 | 70 | 3.8 |
| Dec | 11.7 | 0.2 | 49 | 3.7 |
Average high temperature
Best months by activity
Overall: MayAprOctNov
Beaches: AugJulJunSep
Hiking: NovAprDecMar
Sightseeing: AprMayNovOct
Isesaki quick facts
What to pack
Cold months (Jan, Feb, Mar, Dec): warm layers and a coat.
Wet months (May, Jun, Jul, Aug, Sep, Oct): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Isesaki?
May, Apr, Oct, Nov.
What is the rainiest month?
Sep, about 188 mm.
What is the warmest month?
Aug, with average highs of 31.2°C.
Where to stay
See Isesaki hotels · Book Isesaki tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.