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San Simeon (CA) Weather and Climate: A Comprehensive Guide

San Simeon maintains a fairly consistent pleasant average temperature. San Simeon has a dry climate with relatively low precipitation levels. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

The climate in San Simeon remains fairly constant, offering pleasant temperatures throughout the year. Average maximum daytime temperatures range from a pleasant 22°C in September, the warmest time of the year, to a moderate 15°C during cooler months like January.

At night, temperatures typically drop to an average of around 8°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

San Simeon typically sees modest rainfall throughout the year, with an average annual precipitation of 459 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives high rainfall, averaging 105 mm of precipitation, recorded across 9 rainy days. In contrast, the drier season, August brings less rainfall, with 0.2 mm 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

Sunshine over the year

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

Data from: Paso Robles, the United States of America (45 KM, 28 Miles).

Daily hours of sunshine

Data from: Paso Robles, the United States of America (45 KM, 28 Miles).

Forecast for San Simeon (CA)

Fri   Dec 27
18°C | 8°C
W 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Sat   Dec 28
19°C | 7°C
W 3 m/s
broken clouds and no rain

broken clouds and no rain

Sun   Dec 29
15°C | 7°C
SW 2 m/s
2.9 mm
overcast and rain

overcast and rain

The best time of year to visit San Simeon in the United States of America

During the months of July, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does San Simeon have a dry season?
    Yes, the months of May, June, July, August and September are very dry.
  • Which is the warmest month in San Simeon?
    September has an average maximum temperature of 22°C and is the warmest month of the year.
  • Which is the coldest month in San Simeon?
    The coldest month is January with an average maximum temperature of 15°C.
  • Which is the wettest month in San Simeon?
    December tops the wettest month list with 105 mm of rainfall.
  • Which is the driest month in San Simeon?
    August is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in San Simeon?
    July is the sunniest month with an average of 352 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.