Weather in Niihama in December
Niihama, Japan averages a high of 11.3°C (52.3°F) and low of 5.6°C (42.1°F) in December, with 12 rain days and 7.9 hours of daily sunshine. Travel score: 59.9/100 (Mixed). The best time to visit Niihama is May.
High
11°C52°F
Low
6°C42°F
🌧️
12
rain days
☀️
7.9
hrs/day sunshine
💧
73%
humidity
60— Mixed
December in Niihama is cool and occasionally wet — mixed conditions — plan indoor alternatives.
What are the average temperatures in Niihama?
How much does it rain in Niihama in December?
Niihama receives an average of 88.6mm of rainfall across 12 rainy days in December. The annual total is 1844.9mm.
What should I pack for Niihama in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 11°C
🧶
Sweaters and warm layers
Layer up for comfort
Traveling to Japan in December?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31