Spring (March–May): Average 10.1–19.3°C, mild and comfortable climate, but with relatively high rainfall, especially in April. Common activities: flower viewing, coastal walks, sightseeing. Recommended clothing: light jacket, long-sleeved shirt, raincoat essential.
Summer (June–August): Average 23.6–28.8°C, hot and humid, frequent rainfall, especially abundant in July and August. Common activities: swimming, water activities, enjoying the sea breeze. Recommended clothing: light and breathable clothing, sun-protective clothing, hat, raincoat.
Autumn (September–November): Average 18.8–26.6°C, comfortable and pleasant climate, rainfall gradually decreasing. Common activities: maple leaf viewing, coastal walks, outdoor activities. Recommended clothing: comfortable long-sleeved shirts, light jacket.
Winter (December–February): Average 4.2–6.2°C, cold and dry, less rainfall. Common activities: onsen bathing, indoor activities. Recommended clothing: warm coat, sweater, scarf, hat, gloves.
Shima climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 2321 mm / Summer humidity: 75%–85% / Rainiest month: August
Shima monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
4.2°C
34.3
February
5.6°C
87.4
March
10.1°C
139.7
April
16.1°C
174.2
May
19.3°C
233.6
June
23.6°C
331.3
July
28°C
338.6
August
28.8°C
388
September
26.6°C
270.9
October
18.8°C
137.6
November
13.5°C
147.9
December
6.2°C
37.5
Shima weather for the next seven days
12/17
Wednesday
Patchy rain nearby
11.3°C/4.2°C
12/18
Thursday
Sunny
13.7°C/5°C
12/19
Friday
Sunny
13.8°C/3.4°C
12/20
Saturday
Patchy rain nearby
14.6°C/5.8°C
12/21
Sunday
Patchy rain nearby
12.7°C/8.8°C
12/22
Monday
Patchy rain nearby
13.9°C/6.8°C
12/23
Tuesday
Sunny
9.7°C/2.9°C
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