Spring (March–May): Average 50–65°F, mild climate but with relatively high rainfall, especially in April and May. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 72–81°F, hot and humid, with the most rainfall in June. Common activities: Swimming, outdoor activities (avoid afternoon thunderstorms). Recommended clothing: Light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 63–77°F, comfortable and pleasant climate, with gradually decreasing rainfall. Common activities: Hiking, outings. Recommended clothing: Comfortable long-sleeved shirts, light jacket.
Winter (December–February): Average 38–42°F, cold and dry, with low rainfall. Common activities: Hot spring experience, indoor activities. Recommended clothing: Warm coat, scarf, hat, gloves.
Isawa climatological average
Annual average temperature: approx. 60.1°F / Annual rainfall: approx. 1351 mm / Summer humidity: 70%–80% / Rainiest month: June
Isawa monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
38.3°F
19.8
February
41.7°F
54.5
March
50.5°F
119.6
April
60.6°F
123.2
May
65.1°F
204.7
June
72.1°F
230.1
July
81.5°F
102.2
August
81°F
147.9
September
77.7°F
159.4
October
63.3°F
98.1
November
54.1°F
76
December
42.1°F
16.4
Isawa weather for the next seven days
11/12
Wednesday
Sunny
48.4°F/24.2°F
11/13
Thursday
Sunny
53.4°F/37.1°F
11/14
Friday
Sunny
47.4°F/34.7°F
11/15
Saturday
Sunny
51.2°F/29.6°F
11/16
Sunday
Patchy rain nearby
51.7°F/34.9°F
11/17
Monday
Patchy rain nearby
67.5°F/49.6°F
11/18
Tuesday
Patchy rain nearby
52°F/38.1°F
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