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Onomichi

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Onomichi Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Onomichi year round climate

  • Spring (March–May): Average 49–64°F, 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 72–83°F, 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 65–55°F, 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 43–41°F, 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. 60.8°F / Annual rainfall: approx. 1175 mm / Summer humidity: 70%–80% / Rainiest month: July

Onomichi monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
40.5°F
22.3
February
41.9°F
55.2
March
49.8°F
106.4
April
59.2°F
137.2
May
64.8°F
161.4
June
72.7°F
167.8
July
81.9°F
177.6
August
83.1°F
107.8
September
79.7°F
82.9
October
65.1°F
77.6
November
55.4°F
59
December
43.5°F
19.8

Onomichi weather for the next seven days

6/23
Tuesday
Patchy rain nearby
71.4°F/63.1°F
6/24
Wednesday
Heavy rain
67.3°F/64.5°F
6/25
Thursday
Heavy rain
70.2°F/67.1°F
6/26
Friday
Patchy rain nearby
80.3°F/67.8°F
6/27
Saturday
Heavy rain
76°F/67°F
6/28
Sunday
Patchy rain nearby
79.3°F/68.6°F
6/29
Monday
Sunny
79.2°F/64.4°F