Osan Weather in January

January in Osan sees daytime temperatures around 4°C (39°F) and lows of -6°C (21°F) at night. As the driest month of the year.

Rainfall in Osan in January

As the driest month, it's a good time for hiking and exploring the area, even if you'll need to layer up. You can expect snow/rain on roughly 8 days based on historical data, averaging 24 mm (0.9 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Osan in January

Expect highs of 4°C (39°F) in Osan in January, with nights dropping to around -6°C (21°F). The winter season takes place during January. It stays very cold throughout much of the day, so warm winter clothing is essential. Nights drop below freezing to -6°C (21°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. Typically, it's the chilliest month of the year, making it a great time for cozying up indoors. Do make sure you're prepared by packing the right winter outfits.

Sunshine in Osan in January

The month experiences a moderate amount of sunlight, with 173 hours of sunshine. This provides a nice balance between sunshine and clouds.

January in Osan can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.