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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

5/13
Wednesday
Patchy rain nearby
22.6°C/13.9°C
5/14
Thursday
Patchy rain nearby
23.1°C/13.5°C
5/15
Friday
Moderate rain
22.7°C/14°C
5/16
Saturday
Patchy rain nearby
23°C/15.6°C
5/17
Sunday
Sunny
23.5°C/15.1°C
5/18
Monday
Patchy rain nearby
23.9°C/15.6°C
5/19
Tuesday
Patchy rain nearby
23.4°C/16.6°C