Osan Weather in December

Osan in December sees low daytime temperatures of 6°C (43°F) and nighttime lows of -4°C (25°F). Low snow/rainfall is typical, with around 27 mm (1.1 in) for the month.

Rainfall in Osan in December

You can expect snow/rain on roughly 9 days based on historical data, averaging 27 mm (1.1 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Osan in December

In December, Osan sees low temperatures, with highs of 6°C (43°F). Nights drop to around -4°C (25°F). December is in the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows of -4°C (25°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.

Sunshine in Osan in December

The area enjoys a moderate level of sunlight, with around 159 hours. It's a good balance between sunny and cloudy days.

Should you favor a climate that's both dry and comfortably warm, May and October typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.