Topanga (CA) Weather & Climate: Best Time to Visit

The climate in Topanga is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 32°C (90°F) in August, the warmest time of the year, to a pleasant 19°C (66°F) during cooler months like February.

At night, you can expect temperatures ranging from 17°C (63°F) in August to around 10°C (50°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Topanga has a relatively dry climate with low precipitation, averaging 387 mm (15 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 89 mm (3.5 in) of precipitation, recorded across 8 rainy days. In contrast, the driest month August brings less rainfall, with 0.1 mm (0 in) over 0 rainy days. For more details, please visit our Topanga Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Topanga. While July receives considerable daily sunshine with up to 12.1 hours, November marks the darkest time of the year, where sunshine is scarce with only 7.2 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Topanga.

The city experiences its highest humidity in May, reaching 73%. In November, the humidity drops to its lowest level at 50%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year