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Sasayama

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Sasayama Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Sasayama year round climate

  • Spring (March–May): Average 12.8–19.6°C, warm and rainy climate. Temperatures gradually warm from March, with heavier rainfall in April and May. Common activities: Hiking, flower viewing. Suggested clothing: Light jacket, long-sleeved shirts and pants.
  • Summer (June–August): Average 23.3–28.2°C, hot and humid. June has the most rainfall, while July and August are relatively drier. Common activities: Avoiding the heat, playing in streams. Suggested clothing: Light and breathable clothing, short sleeves, and shorts.
  • Autumn (September–November): Average 20.4–15.9°C, comfortable and pleasant climate. September has more rainfall, followed by gradually cooler and drier conditions. Common activities: Maple viewing, mountain climbing. Suggested clothing: Light jacket, long-sleeved shirts and pants.
  • Winter (December–February): Average 9.3–8.0°C, cold and dry climate with low rainfall. Common activities: Hot spring bathing, enjoying winter scenery. Suggested clothing: Warm jacket, sweater, long pants.

Sasayama climatological average

Annual average temperature: approx. 17.8°C / Annual rainfall: approx. 1952 mm / Summer humidity: 70%–80% / Rainiest month: June

Sasayama monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
8°C
55
February
8.8°C
90.2
March
12.8°C
181.4
April
17°C
199.8
May
19.6°C
243.6
June
23.3°C
324.7
July
27.6°C
197.1
August
28.2°C
176.7
September
26.4°C
287.6
October
20.4°C
76
November
15.9°C
88.3
December
9.3°C
32.2

Sasayama weather for the next seven days

12/28
Sunday
Sunny
10.9°C/2.9°C
12/29
Monday
Sunny
12.7°C/3.4°C
12/30
Tuesday
Partly Cloudy
15.3°C/7.4°C
12/31
Wednesday
Sunny
8.4°C/3.4°C
1/1
Thursday
Partly Cloudy
8.6°C/2.5°C
1/2
Friday
Sunny
9.4°C/1.2°C
1/3
Saturday
Sunny
11.5°C/4.5°C