San Luis Obispo (CA) Climate by Month
Temperatures in San Luis Obispo experience a moderate degree of variance through the seasons.
Days can be warm, while the cooler months tend
to be mild.
It typically sees modest rainfall throughout the year.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
In San Luis Obispo, seasonal changes bring about a moderate variation in temperatures. Typically, daytime temperatures range from a comfortable 28°C in September to a moderate 17°C in the coolest month, December. Nights are cooler, with temperatures generally dropping to 5°C, particularly during the colder months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
With annual rainfall averaging 426 mm, San Luis Obispo maintains relatively low precipitation levels throughout the seasons. The climate in San Luis Obispo shows significant variation throughout the year. Expect moderate rainfall in December, with an average of 98 mm of precipitation over 10 rainy days. In contrast, August offers drier and sunnier days, with around 0.4 mm of rainfall over 0 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, San Luis Obispo serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.7 hours of sunshine daily, and embrace the darker days in January, offering only 6.9 hours of daily sunlight.Monthly hours of sunshine
Daily hours of sunshine
The best time of year to visit San Luis Obispo in the United States of America
During the months of March, April, May, June, October and November 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:
Yes, the months of May, June, July, August and September are very dry.
September has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 17°C.
December tops the wettest month list with 98 mm of rainfall.
August is the driest month with 0 mm of precipitation.
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.
