Nikkō 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
Poor
Best time to visit: April – May
What is the weather like in Nikkō in August?
In August, Nikkō is hot: daytime highs average 28 °C, and nights cool down to about 19 °C. Expect around 4.8 hours of sunshine a day. It rains often – on about 24 days, adding up to 282 mm. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Nikkō.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 39 | 35 | 53 |
| Day | 27° | 28° | 24° |
| Night | 19° | 19° | 16° |
| Sun | 4.1 h | 4.8 h | 3.8 h |
| Rain days | 26 | 24 | 21 |
More details for August
- Daylight
- 13 h 37 min04:58 – 18:35
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 27 daysdew point 18 °C or moreAll months
- Wind
- 8 km/haverage daily peakAll months
- Cloud cover
- 75 %on averageAll months
- Hot days
- 7 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9offset from UTC
How the score comes together
- Temperatureweight 50 %57 %
- Sunshineweight 20 %30 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Nikkō in August: quick answers
Is Nikkō hot in August?
Yes. In August, Nikkō is hot: daytime highs average 28 °C and nights stay around 19 °C. On about 7 days the thermometer climbs to 30 °C or more.
Does it rain much in Nikkō in August?
It rains often – on about 24 days, adding up to 282 mm.
Nikkō month by month
The whole year in NikkōAll destinations: JapanWhere to go in August
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), 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