Spring (March–May): 5.6–15.3°C on average, mild climate but with more rainfall and occasional showers. Common activities: Spring outings, flower viewing (e.g., cherry blossoms, depending on blooming conditions). Recommended clothing: Light jacket, comfortable long pants or skirt, and an umbrella.
Summer (June–August): 19.8–25.5°C on average, hot and humid with frequent rainfall. Common activities: Summer resort, outdoor activities should pay attention to weather changes. Recommended clothing: Light and breathable clothing, short sleeves, and shorts, and an umbrella.
Autumn (September–November): 8.3–22.4°C on average, comfortable temperature, rainfall gradually decreases. Common activities: Hiking, maple leaf viewing (depending on the foliage condition). Recommended clothing: Comfortable long-sleeved clothing, light jacket, and an umbrella.
Winter (December–February): -0.6–2.1°C on average, cold and dry with little rainfall. Common activities: Skiing (depending on the availability of suitable ski resorts), hot springs. Recommended clothing: Warm clothing, thick jacket, scarf, gloves, and hat.
Okaya climatological average
Annual average temperature: approx. 12.4°C / Annual rainfall: approx. 1421 mm / Summer humidity: 70%–80% / Rainiest month: June
Okaya monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-0.6°C
15
February
0.4°C
63.7
March
5.6°C
107.7
April
12.2°C
126.5
May
15.3°C
166.1
June
19.8°C
218.8
July
24.5°C
207.3
August
25.5°C
115.2
September
22.4°C
191.7
October
13.8°C
101.4
November
8.3°C
84.8
December
2.1°C
23.1
Okaya weather for the next seven days
11/6
Thursday
Partly Cloudy
11.4°C/1.8°C
11/7
Friday
Partly Cloudy
10.3°C/0.6°C
11/8
Saturday
Sunny
9.2°C/2°C
11/9
Sunday
Moderate rain
13.6°C/4°C
11/10
Monday
Moderate rain
12.3°C/2.2°C
11/11
Tuesday
Sunny
11.3°C/0.7°C
11/12
Wednesday
Sunny
12.6°C/3.8°C
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