San Leandro Weather in December

San Leandro in December averages 14°C (57°F) during the day and 5°C (41°F) at night. This is the wettest month of the year, and part of the winter season.

Rainfall in San Leandro in December

The month brings the most rain, so be prepared with an umbrella for the occasional shower. Looking at the last 30 years, the data shows about 14 days with rain, averaging 110 mm (4.3 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in San Leandro in December

Expect highs of 14°C (57°F) in San Leandro in December, with nights dropping to around 5°C (41°F). December is a notable month of the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to 5°C (41°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. Experience the year's most moderate temperatures in December.

Sunshine in San Leandro in December

With about 160 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in San Leandro in December

Wind speeds average 3 m/s (6 knots) during December. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in December

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.

December in San Leandro 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.