Fullerton weather in September (California, United States of America)
What can you expect from the weather in Fullerton during September? Check out this comprehensive weather guide.
In Fullerton the weather in September is generally perfect, characterized by very high temperatures and low rainfall. September falls within the summer season. Daytime temperatures hover around 31°C, while nights can cool down to about 18°C. On average, it is the warmest month of the year. So be prepared and pack summer clothes. Embrace the warmth, but always stay equipped with your summer essentials to make the most of this toasty month.
Fullerton in September usually receives low rainfall, averaging around 5.3 mm for the month. Rain is expected on roughly 1 day.
The days are predominantly sunny, with an estimated total of around 290 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.
In case you lean more towards enjoying temperate temperatures and rain-free days typically offer the most optimal weather. In contrast, tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Fullerton climate page with graphs.
Fullerton, monthly averages in September
Min Temperature
18°C
Max Temperature
31°C
Chance of Rain
3%
Precipitation
5.3 mm
Rainy days
1 day
Sunshine
290 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 Fullerton 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 Fullerton.
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.
