Iwanai Weather in January

Iwanai in January sees very low daytime temperatures of -1°C (30°F) and nighttime lows of -7°C (19°F). Rainfall is fairly high this month at around 116 mm (4.6 in), so pack a rain jacket to stay dry.

Rainfall in Iwanai in January

Expect around 30 days of snow based on historical data, with 116 mm (4.6 in) average. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Iwanai in January

If you're visiting Iwanai in January, expect highs of -1°C (30°F) and overnight lows around -7°C (19°F). January is part of winter. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. With overnight lows of -7°C (19°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. This month tends to bring the coldest weather of the year, so be sure to pack enough warm clothing to stay comfortable.

Sunshine in Iwanai in January

The month has fewer sunny days, with around 93 hours of sunshine.

If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Iwanai. Our weather planner can help you explore destinations with more pleasant weather conditions.