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Lake Okutama

Travel Info

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Lake Okutama Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Lake Okutama year round climate

  • Spring (March–May): 47–63°F 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): 70–80°F 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): 60–75°F 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): 36–39°F 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. 58.6°F / Annual rainfall: approx. 1315 mm / Summer humidity: 70%–80% / Rainiest month: June

Lake Okutama monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
36.1°F
10.2
February
38.7°F
44.8
March
47.5°F
83.7
April
57.9°F
90
May
63.3°F
141.7
June
70.9°F
220.5
July
80.1°F
133.3
August
81°F
214.8
September
75.6°F
207.6
October
60.8°F
98.1
November
51.1°F
62.7
December
39.9°F
7.7

Lake Okutama weather for the next seven days

12/3
Wednesday
Patchy rain nearby
55.6°F/41.8°F
12/4
Thursday
Sunny
46.8°F/35.3°F
12/5
Friday
Sunny
51.6°F/35.2°F
12/6
Saturday
Sunny
52°F/35.3°F
12/7
Sunday
Sunny
57°F/40.4°F
12/8
Monday
Sunny
57.7°F/42.6°F
12/9
Tuesday
Sunny
53°F/39.5°F

Lake Okutama Frequently Asked Questions and Useful Information for Travel

Is Lake Okutama worth visiting?

The fresh greenery in spring and the autumn leaves in autumn are particularly impressive, and the view reflected on the surface of the lake is breathtaking. The lakeside promenade is great for hiking and driving. This is a healing spot for those who want to spend a relaxing time in beautiful nature.

Can you swim in Lake Okutama?

Relaxation and rejuvenation: Hot springs near Okutama Lake. While swimming in Okutama Lake itself is prohibited due to its status as a water reservoir, hot springs near the lake offer a perfect way to soothe tired muscles and immerse yourself in a cherished Japanese tradition.

How do I get to Okutama Lake?

You can easily reach Okutama by train in about 90 minutes from central Tokyo. From Shinjuku Station, take the JR Chuo Line heading to Nakano. Change to the Ome Line at Tachikawa Station and get off at Okutama Station.

What are the best times of year to visit Lake Okutama?

Lake Okutama is beautiful year-round, but spring offers fresh greenery and vibrant cherry blossoms, while autumn showcases spectacular fall foliage. The summer months are pleasant for water activities and enjoying the lush landscapes.

What activities can I do around Lake Okutama?

Visitors can enjoy hiking along the lakeside promenade, scenic drives with stunning views, photography, and visiting nearby hot springs for relaxation. The area is also known for its peaceful natural surroundings, perfect for unwinding.