Mazatlán Weather in December

The climate in Mazatlán during December can be summarized as warm, humid and dry.

December is in the winter in Mazatlán and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 17°C (63°F) is normal.

On average December is the 6th wettest month of the year in Mazatlán with around 25mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.9 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Mazatlán in December 2025.