San Clemente Weather in January

San Clemente in January sees low daytime temperatures of 10°C (50°F) and nighttime lows of 4°C (39°F). Rainfall is fairly high this month at around 67 mm (2.6 in), so pack a rain jacket to stay dry.

Rainfall in San Clemente in January

Typically, about 12 days will experience rainfall, with an average of 67 mm (2.6 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 San Clemente in January

Daytime highs in San Clemente in January reach 10°C (50°F), with nights around 4°C (39°F). Winter occurs in January. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. January is typically the month with the mildest temperatures of the year.

Sunshine in San Clemente in January

With limited sunshine this month, there are about 67 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

Average water temperature in January

The water temperature is 13°C (55°F), chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for San Clemente.