Yearly weather and climate in Hakone, Japan
The yearly weather in Hakone runs from around -3°C in January to 27°C in August. December is the driest month at 5 rainy days; August the wettest at 18. Here is the annual climate data, so you know what you are packing for.
Best time to visit
Weather is fairly consistent year-round. Pack for stable conditions.
Sunshine
Expect up to 10.1 hours of clear skies in Aug, but only 6.9 hours in Oct. Pack sunglasses and SPF accordingly.
Rainfall
It rains the most in Jun (373mm over 17 days). A reliable rain jacket is a must-have if visiting then.
Day-to-night swings
Temperatures typically drop by 8°C from day to night. Make sure to pack layers for the evenings.
Average temperatures and rainfall
Daily highs and lows in Hakone, averaged over 10 years of recorded weather, with the number of days it typically rains.
- 643°-326°6Jan
- 644°-228°11Feb
- 1051°134°17Mar
- 1559°744°13Apr
- 1864°1050°17May
- 2271°1559°17Jun
- 2780°1967°13Jul
- 2781°2068°18Aug
- 2577°1864°14Sep
- 1865°1152°15Oct
- 1356°541°8Nov
- 847°-130°5Dec
Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. Dec is typically driest at 5 days (54mm); Aug the wettest at 18 days (230mm).
| Month | Average high | Average low | Rainy days | Total rainfall |
|---|---|---|---|---|
| Jan | 6°C | -3°C | 6 | 46mm |
| Feb | 6°C | -2°C | 11 | 117mm |
| Mar | 10°C | 1°C | 17 | 243mm |
| Apr | 15°C | 7°C | 13 | 197mm |
| May | 18°C | 10°C | 17 | 321mm |
| Jun | 22°C | 15°C | 17 | 373mm |
| Jul | 27°C | 19°C | 13 | 133mm |
| Aug | 27°C | 20°C | 18 | 230mm |
| Sep | 25°C | 18°C | 14 | 166mm |
| Oct | 18°C | 11°C | 15 | 200mm |
| Nov | 13°C | 5°C | 8 | 107mm |
| Dec | 8°C | -1°C | 5 | 54mm |
Weather data by Open-Meteo.com
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Hakone with Packola.
Get the app