August · Japan
Best time to visit Hakone in August Weather, crowds & prices
Weather in Hakone in August
Average temperature 27°C, 205 mm of rain, about 28 days with 6+ hours of sunshine and 84% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
4.9/10
Ranked #12 of 12 months
- Avg temp
- 27°C
- Rainfall
- 205 mm
- Humidity
- 84%
- Days with 6h+ sun
- 28
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
August in Hakone scores 4.9/10 for nature and wildlife travel - ranked #12 of 12. Expect around 27°C, 205 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Hakone's hot springs, Lake Ashi and Fuji views make it Tokyo's classic mountain escape.
August in Hakone — the hardest end of the year
August averages 27°C (80°F) and humidity near 84%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
205 mm makes this the wettest stretch of the year, though about 28 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 4.9/10 here, 12th of 12 months, against 8.5/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? December scores 3.6 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Hakone in August?
- In August, Hakone averages 27°C, 205 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 4.9/10.
- Is August a good time to visit Hakone?
- August earns a 4.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Hakone in August?
- Expect about 205 mm of rain in August. Average humidity is 84% and there are about 28 days with 6+ hours of sunshine.
Curated in Hakone
Tickets & experiences
Things to do in Hakone
Hakone, Japan. Live activities and tours from GetYourGuide, matched to this destination.