Hakone weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Fair
Best time to visit: May, October
What is the weather like in Hakone in August?
In August, Hakone is warm: daytime highs average 26 °C, and even at night it stays warm at around 20 °C. Expect around 5 hours of sunshine a day. It rains often – on about 19 days, adding up to 193 mm. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Hakone.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 56 | 57 | 55 |
| Day | 26° | 26° | 23° |
| Night | 19° | 20° | 17° |
| Sun | 5 h | 5 h | 4 h |
| Rain days | 20 | 19 | 17 |
More details for August
- Daylight
- 13 h 31 min05:03 – 18:34
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 28 daysdew point 18 °C or moreAll months
- Wind
- 8 km/haverage daily peakAll months
- Cloud cover
- 72 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %37 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Hakone in August: quick answers
Is Hakone hot in August?
Warm rather than hot: in August, daytime highs in Hakone average 26 °C and nights cool to about 20 °C.
Does it rain much in Hakone in August?
It rains often – on about 19 days, adding up to 193 mm.
Hakone month by month
The whole year in HakoneAll destinations: JapanWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences