Monthly climate guide
Hakone weather in May
With highs near 21°C (70°F) and lows around 15°C (59°F), May feels mild in Hakone. Rainfall averages about 171 mm (very wet) and the sky is often cloudy. Daytime highs are 4°C warmer than April and 2°C cooler than June.
What stands out in May
- There's little difference between day and night (around 6°C).
- Just 80 km apart, but Hakone runs about 2°C cooler than Tokyo this month.
- Seasonally, May counts as late spring in Hakone.
Avg high
21°C
70°F
Avg low
15°C
59°F
Rainfall
171 mm
very wet
Humidity
79%
relative
Sky
66%
cloud · often cloudy
Hakone weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 9°C / 48°F | 4°C / 39°F | 61 mm | 69% | 43% |
| February | 10°C / 50°F | 4°C / 39°F | 91 mm | 70% | 57% |
| March | 13°C / 55°F | 7°C / 44°F | 137 mm | 73% | 59% |
| April | 17°C / 62°F | 10°C / 51°F | 181 mm | 76% | 64% |
| May | 21°C / 70°F | 15°C / 59°F | 171 mm | 79% | 66% |
| June | 23°C / 74°F | 19°C / 66°F | 227 mm | 85% | 82% |
| July | 27°C / 81°F | 23°C / 73°F | 245 mm | 87% | 77% |
| August | 29°C / 84°F | 24°C / 75°F | 136 mm | 84% | 66% |
| September | 26°C / 79°F | 21°C / 70°F | 257 mm | 82% | 73% |
| October | 21°C / 70°F | 16°C / 61°F | 223 mm | 79% | 68% |
| November | 17°C / 62°F | 12°C / 53°F | 106 mm | 75% | 56% |
| December | 12°C / 53°F | 7°C / 44°F | 75 mm | 71% | 48% |
What to pack for May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Hakone?
Compare the months in the chart above to find your ideal window.
Best time to visit Hakone →Other Japan cities in May
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Hakone weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/hakone/may
<a href="https://weathercompare.eu/weather/japan/hakone/may">Hakone weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/hakone" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Hakone weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/hakone/may">Hakone weather in May</a> – WeatherCompare</p>
Hakone in May: quick answers
Is May a good time to visit Hakone?
Yes. May is one of the best months for Hakone, with highs around 21°C and about 171 mm of rain.
How warm is Hakone in May?
Average highs are about 21°C (70°F) and average lows about 15°C (59°F), based on 10 years of daily data.
Does it rain a lot in Hakone in May?
Hakone typically gets around 171 mm of rain in May — very wet.
Figures are long-term averages for the area around Hakone (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.