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Niihama

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Niihama Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Niihama year round climate

  • Spring (March–May): Average 52–67°F, mild and comfortable climate, but with more rainfall. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt.
  • Summer (June–August): Average 74–84°F, hot and humid, with rainfall concentrated in June and July. Common activities: Swimming, summer resort travel. Recommended clothing: Light and breathable clothing, sunscreen.
  • Autumn (September–November): Average 68–80°F, comfortable and pleasant climate, with less rainfall. Common activities: Hiking, autumn leaf viewing. Recommended clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average 43–47°F, relatively low temperatures, low rainfall. Common activities: Indoor activities, hot spring trips. Recommended clothing: Warm jacket, sweater, scarf.

Niihama climatological average

Annual average temperature: approx. 64.0°F / Annual rainfall: approx. 1496 mm / Summer humidity: 70%–80% / Rainiest month: July

Niihama monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
43.9°F
45
February
45.1°F
64
March
52.9°F
122.7
April
61.3°F
173.3
May
67.1°F
200.7
June
74.5°F
246.3
July
82.9°F
292.7
August
84.7°F
103.7
September
81°F
53
October
68.2°F
69.3
November
59.2°F
101.3
December
47.1°F
24.3

Niihama weather for the next seven days

3/17
Tuesday
Sunny
52.4°F/46.4°F
3/18
Wednesday
Moderate rain
52.6°F/49.2°F
3/19
Thursday
Patchy rain nearby
56.8°F/49.2°F
3/20
Friday
Sunny
53.9°F/46°F
3/21
Saturday
Sunny
50.5°F/43.3°F
3/22
Sunday
Sunny
53.9°F/46.1°F
3/23
Monday
Patchy rain nearby
55.6°F/50.4°F