Spring (March–May): Average 9.4–18.0°C, mild climate, but relatively high rainfall, especially in April. Common activities: Spring outings, flower viewing (such as cherry blossoms and azaleas, depending on the flowering season). Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 22.6–28.3°C, hot and humid, abundant rainfall, with July being the peak of the rainy season. Common activities: Cool summer resort travel, stream activities. Recommended clothing: Light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 17.5–25.0°C, comfortable and pleasant climate, gradually decreasing rainfall. Common activities: Maple viewing, mountain hiking. Recommended clothing: Comfortable long-sleeved clothing, light jacket.
Winter (December–February): Average 5.0–6.9°C, cold and dry, relatively low rainfall. Common activities: Hot spring experience, indoor activities. Recommended clothing: Warm clothing, thick jacket, scarf, gloves.
Okuizumo climatological average
Annual average temperature: approx. 16°C / Annual rainfall: approx. 1779 mm / Summer humidity: 70%–80% / Rainiest month: July
Okuizumo monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5°C
94.2
February
5.3°C
92.1
March
9.4°C
116.3
April
14.2°C
137.7
May
18°C
184.3
June
22.6°C
158.1
July
27.1°C
273.9
August
28.3°C
232.1
September
25°C
165.6
October
17.5°C
98.6
November
12.6°C
134.2
December
6.9°C
92.3
Okuizumo weather for the next seven days
11/5
Wednesday
Partly Cloudy
17.7°C/7.4°C
11/6
Thursday
Sunny
18.5°C/9.3°C
11/7
Friday
Partly Cloudy
16.6°C/9.8°C
11/8
Saturday
Sunny
17.2°C/9.9°C
11/9
Sunday
Moderate rain
13.9°C/10.3°C
11/10
Monday
Patchy rain nearby
14.9°C/10.7°C
11/11
Tuesday
Partly Cloudy
14.6°C/8.3°C
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