Monthly climate guide
Hakone weather in August
With highs near 29°C (84°F) and lows around 24°C (75°F), August feels hot in Hakone. Rainfall averages about 136 mm (wet) and the sky is often cloudy. Daytime highs are 2°C warmer than July and 3°C warmer than September.
What stands out in August
- August brings late summer to Hakone.
- Days and nights are close, only about 5°C apart.
- It's humid — around 84% — so the heat feels heavier.
- Hakone is usually about 2°C cooler than Tokyo, 80 km away, in August.
August is typically Hakone's warmest month.
Avg high
29°C
84°F
Avg low
24°C
75°F
Rainfall
136 mm
wet
Humidity
84%
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 August
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- A compact umbrella or packable rain jacket
- Water-resistant shoes
- Quick-dry fabrics — it feels stickier than the temperature suggests
Is August 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 August
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Hakone weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/hakone/august
<a href="https://weathercompare.eu/weather/japan/hakone/august">Hakone weather in August</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 August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/hakone/august">Hakone weather in August</a> – WeatherCompare</p>
Hakone in August: quick answers
Is August a good time to visit Hakone?
August is one of the wetter months in Hakone, with about 136 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Hakone in August?
Average highs are about 29°C (84°F) and average lows about 24°C (75°F), based on 10 years of daily data.
Does it rain a lot in Hakone in August?
Hakone typically gets around 136 mm of rain in August — 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.