Garden Grove (CA) Weather & Climate: Best Time to Visit

The climate in Garden Grove experiences moderate temperature changes, with mild shifts between seasons. Typically, average maximum daytime temperatures range from a comfortable 30°C (86°F) in September to a pleasant 20°C (68°F) in the coolest month, December.

Nights vary from 18°C (64°F) in September to around 8°C (46°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Garden Grove experiences desert-like conditions in terms of precipitation with almost no rainfall, generally receiving 218 mm (8.6 in) annually. The climate in Garden Grove shows significant variation throughout the year. Expect moderate rainfall in December, the wettest month, with an average of 59 mm (2.3 in) of precipitation over 7 rainy days.

In contrast, the driest month August offers drier and sunnier days, with around 0.1 mm (0 in) of rainfall over 0 rainy days. For more details, please visit our Garden Grove Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Garden Grove serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 12.3 hours of sunshine daily, and embrace the darker days in January, offering only 6.6 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine