Spring (March–May): Average 51–65°F, mild climate but with relatively high rainfall, especially abundant rainfall from April to May. Common activities: enjoying nature, flower viewing (e.g., plum blossoms, cherry blossoms, but weather conditions should be checked). Recommended clothing: light jacket, long-sleeved shirts, rain gear.
Summer (June–August): Average 72–83°F, hot and humid, with relatively high rainfall in June and July. Common activities: beach activities, firework viewing (if available). Recommended clothing: light and breathable clothing, short sleeves, shorts, sun hat, sunscreen.
Autumn (September–November): Average 60–80°F, comfortable and pleasant climate, with gradually decreasing rainfall. Common activities: maple leaf viewing (if available), hiking. Recommended clothing: comfortable long-sleeved shirts, light jacket, comfortable shoes.
Winter (December–February): Average 44–49°F, cold and dry, with low rainfall. Common activities: onsen (hot spring) visits (if available), indoor activities. Recommended clothing: warm coat, sweater, scarf, gloves, hat.
Izumisano climatological average
Annual average temperature: approx. 63.7°F / Annual rainfall: approx. 1723 mm / Summer humidity: 70%–80% / Rainiest month: June
Izumisano monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
45°F
63.9
February
45°F
59.2
March
51.1°F
113.6
April
59.7°F
163.5
May
65.5°F
259.9
June
72.7°F
285.1
July
81.3°F
200.3
August
83.7°F
130.6
September
80.6°F
161.5
October
68.9°F
141
November
60.3°F
101.2
December
49.6°F
43.7
Izumisano weather for the next seven days
12/28
Sunday
Sunny
46.5°F/40.8°F
12/29
Monday
Sunny
51.2°F/41.5°F
12/30
Tuesday
Patchy rain nearby
54.2°F/46.9°F
12/31
Wednesday
Partly Cloudy
46°F/41.4°F
1/1
Thursday
Patchy rain nearby
46.8°F/38.5°F
1/2
Friday
Partly Cloudy
44.9°F/38.4°F
1/3
Saturday
Patchy rain nearby
49.7°F/44.5°F
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