Spring (March–May): Average 14.4–21.3°C, mild and comfortable climate, but with more rainfall. Common activities: Spring outings, flower viewing (depending on the flowering season). Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 24.5–29.9°C, hot and humid, abundant rainfall, especially the most rainfall in June. Common activities: Beach activities, indoor activities. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Winter (December–February): Average 9.4–11.1°C, lower temperatures, less rainfall. Common activities: Indoor leisure activities. Recommended clothing: Warm jacket, sweater, scarf, hat.
Shiroyama climatological average
Annual average temperature: approx. 19.7°C / Annual rainfall: approx. 2666 mm / Summer humidity: 75%–85% / Rainiest month: June
Shiroyama monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
9.4°C
54
February
11.1°C
132
March
14.4°C
210
April
18.6°C
237.3
May
21.3°C
275.3
June
24.5°C
639.3
July
29.2°C
390.7
August
29.9°C
299
September
28.2°C
164
October
22.4°C
85
November
17.6°C
117.3
December
10.2°C
62.3
Shiroyama weather for the next seven days
4/14
Tuesday
Moderate rain
17°C/15.9°C
4/15
Wednesday
Moderate rain
21.3°C/16.3°C
4/16
Thursday
Patchy rain nearby
23.4°C/15.5°C
4/17
Friday
Patchy rain nearby
20°C/15.5°C
4/18
Saturday
Patchy rain nearby
20.9°C/15.7°C
4/19
Sunday
Patchy rain nearby
22.6°C/14.6°C
4/20
Monday
Partly Cloudy
22.9°C/15.7°C
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