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Lake Okutama
Lake Okutama Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Lake Okutama year round climate
- Spring (March–May): 8.6–17.4°C on average, mild climate, but with potentially large temperature variations; rainfall increases gradually. Common activities: Hiking, flower viewing (e.g., mountain cherry blossoms). Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
- Summer (June–August): 21.6–27.2°C on average, hot and humid, relatively high rainfall, especially in June and August. Common activities: Boating, camping (be mindful of weather changes). Recommended clothing: Light and breathable clothing, sun hat, rain gear.
- Autumn (September–November): 16.0–24.2°C on average, pleasant and comfortable climate, decreasing rainfall; colorful autumn leaves are a characteristic of the season. Common activities: Maple leaf viewing, hiking. Recommended clothing: Comfortable long-sleeved shirts, light jacket.
- Winter (December–February): 2.3–4.4°C on average, cold and dry, low rainfall. Common activities: Hot spring bathing, enjoying winter scenery. Recommended clothing: Warm clothing, thick jacket, hat, gloves, scarf.
Lake Okutama climatological average
Annual average temperature: approx. 14.8°C / Annual rainfall: approx. 1315 mm / Summer humidity: 70%–80% / Rainiest month: June
Lake Okutama monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
2.3°C
10.2
February
3.7°C
44.8
March
8.6°C
83.7
April
14.4°C
90
May
17.4°C
141.7
June
21.6°C
220.5
July
26.7°C
133.3
August
27.2°C
214.8
September
24.2°C
207.6
October
16°C
98.1
November
10.6°C
62.7
December
4.4°C
7.7
Lake Okutama weather for the next seven days
4/2
Thursday
Moderate rain
12.4°C/2.9°C
4/3
Friday
Sunny
15.7°C/2.1°C
4/4
Saturday
Patchy rain nearby
13.3°C/6.4°C
4/5
Sunday
Patchy rain nearby
20.2°C/8.2°C
4/6
Monday
Moderate rain
14.9°C/10.7°C
4/7
Tuesday
Patchy rain nearby
14.3°C/9.8°C
4/8
Wednesday
Patchy rain nearby
16°C/4.5°C
