Spring (March–May): Average 9.9–18.2°C, mild climate but with relatively high rainfall, especially abundant in April and May. Common activities: Flower viewing, hiking. Recommended clothing: Light jacket, comfortable long pants or skirt.
Summer (June–August): Average 22.6–28.4°C, hot and humid, with the most rainfall in July. Common activities: Beach activities, swimming. Recommended clothing: Light and breathable clothing, shorts, sandals.
Autumn (September–November): Average 18.4–13.0°C, comfortable and pleasant climate, with gradually decreasing rainfall. Common activities: Hiking, viewing autumn leaves (depending on tree species). Recommended clothing: Light jacket, long-sleeved clothing.
Winter (December–February): Average 6.4–5.5°C, low temperatures, dry and less rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, sweater, scarf, hat.
Onomichi climatological average
Annual average temperature: approx. 16°C / Annual rainfall: approx. 1175 mm / Summer humidity: 70%–80% / Rainiest month: July
Onomichi monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
4.7°C
22.3
February
5.5°C
55.2
March
9.9°C
106.4
April
15.1°C
137.2
May
18.2°C
161.4
June
22.6°C
167.8
July
27.7°C
177.6
August
28.4°C
107.8
September
26.5°C
82.9
October
18.4°C
77.6
November
13°C
59
December
6.4°C
19.8
Onomichi weather for the next seven days
1/11
Sunday
Patchy rain nearby
2.6°C/-0.7°C
1/12
Monday
Partly Cloudy
5.7°C/-1.4°C
1/13
Tuesday
Patchy rain nearby
11.2°C/2.9°C
1/14
Wednesday
Sunny
7.5°C/0.8°C
1/15
Thursday
Partly Cloudy
10.7°C/1.2°C
1/16
Friday
Partly Cloudy
15.6°C/7.2°C
1/17
Saturday
Sunny
14.1°C/4.7°C
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