San Simeon (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Simeon.
Climate overview of San Simeon
With consistently stable weather, San Simeon, California, United States of America, sees little seasonal temperature change. Daytime highs average 19°C (66°F), ranging from 22°C (72°F) in September to 15°C (59°F) in December.
Rainfall is modest, totalling around 459 mm (18 in) annually. The city experiences a distinct dry season from May to November. December tends to be the wettest month. The most sunshine falls in July, with an average of 11.7 hours of daily sunshine.
San Simeon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Simeon - and find the best time to visit.
Monthly Temperature in San Simeon
The climate in San Simeon remains fairly constant, offering pleasant temperatures throughout the year. Average maximum daytime temperatures range from a pleasant 22°C (72°F) in September, the warmest time of the year, to a moderate 15°C (59°F) during cooler months like December.
At night, you can expect temperatures ranging from 13°C (55°F) in September to around 8°C (46°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Simeon
San Simeon typically sees modest rainfall throughout the year, with an average annual precipitation of 459 mm (18 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives high rainfall, averaging 105 mm (4.1 in) of precipitation, recorded across 9 rainy days. In contrast, the driest month August brings less rainfall, with 0.2 mm (0.01 in) over 0 rainy days. For more details, please visit our San Simeon Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in San Simeon
Seasonal changes in sunshine hours are quite dramatic in San Simeon. While July receives considerable daily sunshine with up to 11.7 hours, January marks the darkest time of the year, where sunshine is scarce with only 6.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit San Simeon
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August, September and October
- Warmest weather: August, September and October
- Most sunshine: July and August
- Fewer rainy days: May, June, July, August and September
- Wettest months: January, February, March, April and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from May to November
Frequently asked questions about the climate in San Simeon
What is the best time to visit San Simeon?
May, June, July, August, September and October typically offer the most optimal weather in San Simeon. In contrast, December tends to have less optimal conditions. San Simeon has a distinct dry season from May to November.
What temperatures can I expect in San Simeon?
Daytime highs range from 15°C (59°F) in December to 22°C (72°F) in September. Nighttime lows range from 8°C (46°F) to 13°C (55°F). Temperatures stay relatively stable year-round.
How much rain does San Simeon get?
Annual rainfall is around 459 mm (18 in). December is the wettest month with 105 mm (4.1 in), while August is the driest with 0.2 mm (0.01 in).
How sunny is San Simeon?
San Simeon receives around 3,187 hours of sunshine per year. July is the sunniest month with 352 hours, while January is the cloudiest with just 208 hours. Overall, San Simeon enjoys abundant sunshine.
San Simeon 3-Day Forecast
San Simeon on the map
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