San Luis Obispo weather in September (California, United States of America)
Curious about the September weather in San Luis Obispo? Here's what the weather might have in store during this month.
In San Luis Obispo the weather in September is generally perfect, with high temperatures and almost no rainfall. September falls within the summer season. Daytime temperatures hover around 28°C, while nights can cool down to about 12°C. Typically, it's the hottest month of the year. Make sure to come prepared with breezy outfits. Whether you're out exploring or just lounging, being prepared can make your experience in this warm month much more enjoyable.
San Luis Obispo in September usually receives almost no rainfall, averaging around 0.4 mm for the month. It's the month with the least rainfall. Whether you're keen on hiking, outdoor festivals, or just enjoying a walk in the park, this month provides a reliably dry backdrop for all your plans. Typically around 1 day of rainfall is expected.
With around 270 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.
So this is a great month to visit if you prefer dry days with pleasant temperatures. March, April, May, June, July, August, September, October and November typically offer the most optimal weather. In contrast, December tends to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized San Luis Obispo climate page with graphs.
San Luis Obispo, monthly averages in September
Min Temperature
12°C
Max Temperature
28°C
Chance of Rain
3%
Precipitation
0.4 mm
Rainy days
1 day
Sunshine
270 hours *
Percentage Sunshine
*
Where to go in the United States of America in September
Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in San Luis Obispo in September?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
This site provides you with all the information you need about the climate in San Luis Obispo.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
