National City Weather in December

December in National City brings pleasant temperatures around 19°C (66°F) during the day, dropping to 9°C (48°F) at night, with the most rainfall of the year.

Rainfall in National City in December

This month sees the most rain, so carrying an umbrella will ensure you stay dry. Past climate data indicates that roughly 7 days will see rain, totalling around 62 mm (2.4 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in National City in December

Expect highs of 19°C (66°F) in National City in December, with nights dropping to around 9°C (48°F). Conditions are often most pleasant around the middle of the day. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. This period usually represents the year's more moderate temperatures, but it's far from being chilly.

Sunshine in National City in December

The city usually sees around 231 hours of sunlight, indicating many sunny days , a great month for sightseeing.

December in National City 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.