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Omihachiman

Omihachiman 1
Travel Info
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Travel Info

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Omihachiman Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Omihachiman year round climate

  • Spring (March–May): 8.7–17.7°C on average, mild climate but with relatively high rainfall, especially in April and May. Common activities: Cherry blossom viewing, visiting Hikone Castle, exploring the water towns. Recommended clothing: Light jacket, comfortable long-sleeved clothing, rain gear.
  • Summer (June–August): 22.7–28.5°C on average, hot and humid with relatively high rainfall, especially in June and July. Common activities: Swimming at Lake Biwa, enjoying outdoor activities (pay attention to sun protection). Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): 18.3–13.0°C on average, pleasant and comfortable climate with reduced rainfall. Common activities: Maple leaf viewing, cycling through the old streets of Omihachiman. Recommended clothing: Comfortable long-sleeved clothing, light jacket.
  • Winter (December–February): 6.7–5.0°C on average, cold and dry with low rainfall. Common activities: Tasting local cuisine, experiencing onsen. Recommended clothing: Warm jacket, hat, scarf, gloves.

Omihachiman climatological average

Annual average temperature: approx. 15.7°C / Annual rainfall: approx. 1670 mm / Summer humidity: 70%–80% / Rainiest month: July

Omihachiman monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
4.1°C
90.8
February
5°C
79.7
March
8.7°C
123.8
April
14.5°C
152.2
May
17.7°C
188.3
June
22.7°C
223.6
July
27.6°C
235.1
August
28.5°C
165.1
September
26.1°C
117.4
October
18.3°C
124.5
November
13°C
96.9
December
6.7°C
72.7

Omihachiman weather for the next seven days

11/20
Thursday
Sunny
13.3°C/5.8°C
11/21
Friday
Patchy rain nearby
15°C/8.2°C
11/22
Saturday
Patchy rain nearby
14°C/9.4°C
11/23
Sunday
Sunny
14.6°C/7.8°C
11/24
Monday
Sunny
15.7°C/8.8°C
11/25
Tuesday
Patchy rain nearby
15.8°C/9.9°C
11/26
Wednesday
Patchy rain nearby
10°C/7.7°C