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Hourly Forecast
Daylight Hours
05:51
Sunrise
17:50
Sunset
Moon
Waxing Gibbous
14:55
Moonrise
00:58
Moonset
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View stargazing scoreWeather in Shirahama today, September 21, 2026
Shirahama starts September 21, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. Early hours look the most unsettled, with rain probability near 72% by 06:00. The thickest cloud arrives around 06:00, reaching about 90%.
Expect highs of 28°C and cooler readings close to 24°C. The air stays humid, with relative humidity between 72% and 87% and the peak around 06:00. Winds stay light, near 13.3 km/h by 12:00, so the day feels still more than breezy.
Afternoon conditions improve on the morning wet spell, as rain chances fall toward 6% from about 72% earlier. Cloud still reaches roughly 84% near 14:00. Expect visibility near 15.7 km, with poorer spells close to 9.5 km. Expect sunrise at 05:51, sunset at 17:50, and 11 hours 58 minutes of sunlight today overall.
Taken together, Shirahama looks wet enough on September 21, 2026 that flexible outdoor plans work best, with temperatures peaking near 28°C.
Frequently asked questions about weather in Shirahama
How warm does it get in Shirahama?
The warmest month in Shirahama is August, with average high temperatures of 29°C. The average temperature during this period is around 28°C.
How cold does it get in Shirahama?
The coldest month in Shirahama is February, with average low temperatures of 7°C. The average temperature during this period is around 9°C.
What is the wettest time of year in Shirahama?
The wettest month in Shirahama is June, with an average of 302mm of precipitation.
What is the driest time of year in Shirahama?
The driest month in Shirahama is December, with an average of 81mm of precipitation.
