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Niihama
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Niihama Weather and climate
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
10/20
Monday
Moderate rain
70°F/60.9°F
10/21
Tuesday
Patchy rain nearby
65.2°F/57.6°F
10/22
Wednesday
Patchy rain nearby
64°F/56.5°F
10/23
Thursday
Sunny
68.9°F/58.2°F
10/24
Friday
Partly Cloudy
68°F/57.4°F
10/25
Saturday
Patchy rain nearby
65.3°F/60.4°F
10/26
Sunday
Moderate rain
64.9°F/60.1°F
