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Iizuna Town

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Iizuna Town Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Iizuna Town year round climate

  • Spring (March–May): Average 42–62°F, mild climate, but still chilly in early spring, increasing rainfall. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, warm clothing for mornings and evenings.
  • Summer (June–August): Average 69–80°F, warm and humid, more rainfall, occasional showers. Common activities: Mountain hiking, outdoor picnics. Recommended clothing: Light and breathable clothing, rain gear.
  • Autumn (September–November): Average 48–75°F, pleasant climate, large temperature difference between morning and evening, gradually decreasing rainfall. Common activities: Maple viewing, hiking. Recommended clothing: Light jacket, long-sleeved shirt, warm clothing for mornings and evenings.
  • Winter (December–February): Average -32–36°F, cold and dry, low probability of snowfall. Common activities: Skiing (requires travel to nearby areas), hot spring bathing. Recommended clothing: Warm jacket, sweater, scarf, gloves.

Iizuna Town climatological average

Annual average temperature: approx. 55.4°F / Annual rainfall: approx. 1004 mm / Summer humidity: 70%–80% / Rainiest month: July

Iizuna Town monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
31.5°F
37.7
February
33.6°F
43.3
March
42.8°F
76.7
April
55.2°F
83.7
May
61.9°F
108.3
June
70.3°F
94.7
July
78.3°F
141.3
August
80.6°F
115
September
75°F
138.7
October
59.2°F
64
November
48.6°F
70.7
December
36.7°F
30.7

Iizuna Town weather for the next seven days

4/12
Sunday
Sunny
59.3°F/40.9°F
4/13
Monday
Sunny
70.4°F/40.5°F
4/14
Tuesday
Patchy rain nearby
70.5°F/46.4°F
4/15
Wednesday
Patchy rain nearby
68.4°F/48.6°F
4/16
Thursday
Sunny
65.8°F/40.7°F
4/17
Friday
Overcast
68.3°F/40.6°F
4/18
Saturday
Sunny
67.4°F/42.7°F

Iizuna Town Frequently Asked Questions and Useful Information for Travel

What is the best time to visit?

The best time to visit is during the winter, especially from December to March, when skiing and other winter activities can be enjoyed.

What are the must-see attractions?

Must-see attractions include the Togakushi Mountains, Mount Iizuna, and the various natural attractions within the Joshinetsu Plateau National Park.