Spring (March–May): Average 10.1–18.1°C, the climate transitions from cold to warm, with increasing rainfall. March remains cool, while May feels warm like early summer. Common activities: Flower viewing, hiking, sightseeing in the water town. Recommended clothing: Spring and autumn jackets, long-sleeved shirts, comfortable athletic shoes.
Summer (June–August): Average 22.0–27.5°C, hot and humid. June has the most rainfall, while July and August have relatively less. Common activities: Water activities, sightseeing at summer resorts. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 13.3–25.0°C, the climate is comfortable and pleasant. September has more rainfall, which gradually decreases afterwards. Common activities: Maple leaf viewing, rural experiences. Recommended clothing: Long-sleeved shirts, light jackets, comfortable shoes.
Winter (December–February): Average 4.3–6.7°C, cold and dry, with less rainfall. Common activities: Hot spring experiences, indoor activities. Recommended clothing: Warm jackets, sweaters, scarves, gloves.
Weather in Itako
Annual average temperature: approx. 16°C / Annual rainfall: approx. 1450 mm / Summer humidity: 70%–80% / Rainiest month: June
Itako weather by month
Month
Temperature (°C)
Rainfall (mm)
January
4.3°C
42.8
February
5.6°C
70.1
March
10.1°C
118.7
April
15.2°C
138
May
18.1°C
183.8
June
22°C
216.1
July
27°C
108.4
August
27.5°C
98.8
September
25°C
204.1
October
18.2°C
131.2
November
13.3°C
93.1
December
6.7°C
45.2
7-day weather forecast for Itako
10/30
Friday
Overcast
20.9°C/14.7°C
10/31
Saturday
Sunny
21°C/16.3°C
11/1
Sunday
Sunny
19.4°C/14.2°C
11/2
Monday
Patchy rain nearby
18.4°C/14.9°C
11/3
Tuesday
Patchy rain nearby
18.7°C/14.8°C
11/4
Wednesday
Patchy rain nearby
16.7°C/15°C
11/5
Thursday
Light drizzle
17.6°C/15°C
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