Shirahama Weather in August
August in Shirahama averages 30°C (86°F) during the day and 25°C (77°F) at night. August is part of the rainy season, with around 180 mm (7.1 in) of rainfall and frequent showers.
Rainfall in Shirahama in August
Shirahama is in the rainy season in August, with rain on around 17 days and an average of 180 mm (7.1 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Shirahama in August
If you're visiting Shirahama in August, expect highs of 30°C (86°F) and overnight lows around 25°C (77°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.
Sunshine in Shirahama in August
Enjoy a sunny month with about 228 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May and November typically offer the best weather for Shirahama.
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 Shirahama's climate page.
Shirahama Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
56%
Precipitation
180 mm (7.1 in)
Rainy days
17 days
Humidity
73% *
Sunshine
228 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Shirahama typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°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 Shirahama in August
Browse day-by-day weather records for Shirahama spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Shirahama historical weather extremes in August
According to our 49 years of weather records for Shirahama, the following extremes were recorded between 1976 and 2025.
- Shirahama recorded its highest August temperature of 37°C (99°F) on August 15, 2020.
- The lowest daytime temperature in August was 24°C (75°F), recorded on August 14, 2003.
- Nighttime temperatures dropped to 20°C (68°F) on August 25, 2009, marking the coldest August night on record.
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 →
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What to Wear in Shirahama 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! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Shirahama 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 Shirahama's climate page.
Temperature Rainfall Sunshine Humidity
See the full Shirahama climate overview or explore weather in Japan.
