Nikko Weather in August
August in Nikko typically sees daytime highs of 27°C (81°F) and nighttime lows of 20°C (68°F). August falls within the rainy season, so heavy rainfall is to be expected. It falls within the summer season.
Rainfall in Nikko in August
As part of the rainy season, Nikko sees around 22 days of rain in August, with an average of 282 mm (11 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Nikko in August
August in Nikko sees highs of 27°C (81°F) and lows of 20°C (68°F) overnight. The month of August belongs to the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 20°C (68°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. This is typically the warmest month of the year, so light summer clothing is a good idea.
Sunshine in Nikko in August
The area enjoys a balanced 139 hours of sunlight, ensuring it's neither too rainy nor too sunny.August in Nikko can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Nikko's climate page.
Nikko Temperature in August
Min Temperature
20°C (68°F)
Max Temperature
27°C (81°F)
Chance of Rain
72%
Precipitation
282 mm (11 in)
Rainy days
22 days
Humidity
86%
Sunshine
139 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Nikko typically stay consistent throughout August, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 18°C (64°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Nikko in August
Browse day-by-day weather records for Nikko spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Nikko historical weather extremes in August
The extremes listed below come from historical weather data collected in Nikko from 1976 through 2025.
- The hottest August day on record in Nikko reached 36°C (97°F) (August 6, 2002).
- Nikko experienced its chilliest August day on August 27, 1996, reaching only 13°C (55°F).
- The lowest overnight temperature recorded in August was 8°C (46°F) (August 18, 2018).
Best Places in Japan in August
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Nikko in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Nikko in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Nikko's climate page.
Temperature Rainfall Sunshine Humidity
See the full Nikko climate overview or explore weather in Japan.
