Oceanside Weather in January

January in Oceanside brings low temperatures around 10°C (50°F) during the day, dropping to 4°C (39°F) at night, and as part of the rainy season, heavy rainfall is common.

Rainfall in Oceanside in January

As part of the rainy season, Oceanside sees around 22 days of rain in January, with an average of 347 mm (14 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Oceanside in January

If you're visiting Oceanside in January, expect highs of 10°C (50°F) and overnight lows around 4°C (39°F). The month of January belongs to the winter season. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

January in Oceanside has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.