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Isesaki

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Isesaki Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Isesaki year round climate

  • Spring (March–May): Average 9.9–19.0°C, mild climate, but relatively high rainfall, especially in April and May. Common activities: Picnics, flower viewing. Suggested clothing: Light jacket, comfortable long pants or skirt.
  • Summer (June–August): Average 23.3–28.6°C, hot and humid, abundant rainfall. Common activities: Swimming, outdoor summer activities. Suggested clothing: Breathable and lightweight clothing, sun hat.
  • Autumn (September–November): Average 18.0–25.6°C, pleasant climate, but September has relatively high rainfall. Common activities: Maple leaf viewing, hiking in the suburbs. Suggested clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average 4.4–6.8°C, cold and dry, low rainfall. Common activities: Indoor activities, hot spring trips. Suggested clothing: Warm coat, scarf, gloves.

Isesaki climatological average

Annual average temperature: approx. 16.5°C / Annual rainfall: approx. 1175 mm / Summer humidity: 70%–80% / Rainiest month: September

Isesaki monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
4.4°C
11.5
February
5.4°C
33
March
9.9°C
76.7
April
15.6°C
76
May
19°C
126.3
June
23.3°C
187.7
July
28.2°C
160.7
August
28.6°C
148.7
September
25.6°C
202.7
October
18°C
94.3
November
12.8°C
49
December
6.8°C
9.2

Isesaki weather for the next seven days

3/3
Tuesday
Moderate rain
8.3°C/2.7°C
3/4
Wednesday
Heavy rain
10.6°C/2.4°C
3/5
Thursday
Sunny
11.1°C/3.2°C
3/6
Friday
Patchy rain nearby
11.1°C/2.1°C
3/7
Saturday
Moderate rain
13.2°C/5.4°C
3/8
Sunday
Sunny
10.9°C/4.1°C
3/9
Monday
Sunny
11.9°C/1.5°C