Alameda Weather in December

Alameda in December sees moderate temperatures, with highs around 15°C (59°F) and overnight lows of 6°C (43°F). Rainfall is at its peak this month, around 109 mm (4.3 in) on average, so waterproofs are essential.

Rainfall in Alameda in December

As the month with the highest rainfall, make sure to have an umbrella to manage the showers. Looking at the last 30 years, the data shows about 14 days with rain, averaging 109 mm (4.3 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Alameda in December

Daytime temperatures in Alameda reach 15°C (59°F) in December, dropping to 6°C (43°F) at night. Conditions are often most pleasant around the middle of the day. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. The temperatures in December are often the mildest compared to the rest of the year.

Sunshine in Alameda in December

You can expect a moderate amount of sunlight, with approximately 160 hours. This means a pleasant mix of sun and overcast.

Wind Speed in Alameda 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 Alameda has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.