San Simeon Weather in December
December in San Simeon brings moderate temperatures, with daytime highs of 15°C (59°F) and nights around 8°C (46°F). It's also the wettest month of the year, so an umbrella is a must.
Rainfall in San Simeon in December
With this being the rainiest month, having an umbrella is essential to avoid unexpected rain. Based on our climate data of the past 30 years, about 9 days of rain are anticipated, with 105 mm (4.1 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in San Simeon in December
December in San Simeon brings typical temperatures with highs around 15°C (59°F) and lows of 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. Typically, this month presents some of the milder temperatures of the year, yet it remains pleasantly warm.
Sunshine in San Simeon in December
The city usually sees around 220 hours of sunlight, indicating many sunny days — a great month for sightseeing.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for San Simeon.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Simeon's climate page.
San Simeon Temperature in December
Min Temperature
8°C (46°F)
Max Temperature
15°C (59°F)
Chance of Rain
29%
Precipitation
105 mm (4.1 in)
Rainy days
9 days
Sunshine
220 hours *
Percentage Sunshine
*
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
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unpleasant
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What to Wear in San Simeon in December
The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in San Simeon in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Simeon's climate page.
See the full San Simeon climate overview or explore weather in the United States of America.
