Lake Biwa is beautiful, but the round-trip cable car ticket to the observation deck costs ¥5000 😱 It was surprisingly cold on the mountain even in summer, and very windy… Since the round trip from Osaka took almost 6 hours, it was a bit of a shame that we didn't have enough time for each attraction. Our guide, Effy, was very dedicated, explaining the sights in Chinese, English, and Japanese!
Excellent pick-up and drop-off service, highly recommended, will subscribe again next time.
Anonymous User
Family
Omihachiman Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Omihachiman year round climate
Spring (March–May): 47–63°F 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): 72–83°F 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): 64–55°F 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): 44–41°F 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. 60.3°F / Annual rainfall: approx. 1670 mm / Summer humidity: 70%–80% / Rainiest month: July
Omihachiman monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
39.4°F
90.8
February
41°F
79.7
March
47.7°F
123.8
April
58.1°F
152.2
May
63.9°F
188.3
June
72.9°F
223.6
July
81.7°F
235.1
August
83.3°F
165.1
September
79°F
117.4
October
64.9°F
124.5
November
55.4°F
96.9
December
44.1°F
72.7
Omihachiman weather for the next seven days
8/26
Wednesday
Sunny
90.1°F/78.1°F
8/27
Thursday
Light rain shower
83.1°F/71.3°F
8/28
Friday
Light rain shower
79.3°F/73°F
8/29
Saturday
Light rain shower
79.6°F/74.8°F
8/30
Sunday
Light rain shower
80.1°F/74.3°F
8/31
Monday
Light rain shower
82°F/75.2°F
9/1
Tuesday
Patchy rain nearby
82.9°F/75.1°F
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