Fullerton weather in September (California, United States of America)

Is September a good time to explore Fullerton weather-wise? Want to know if it's a good time to visit? This page has all the weather details for the month.

Temperatures

Experience perfect weather in Fullerton in September, characterized by very high temperatures and low rainfall. Enjoy the summer season during this month. Daytime temperatures hover around 31°C, while nights can cool down to about 18°C. This month is known for its high temperatures, often being the hottest. Keep your summer wardrobe handy and enjoy the warmth responsibly.

Precipitation

Fullerton in September usually receives low rainfall, averaging around 5.3 mm for the month. Rain is expected on roughly a single day.

Average sunshine

With approximately 290 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.

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 a single day  

Sunshine 290 hours *  

Percentage Sunshine *  

Data from: Corona, the United States of America (33 KM, 20 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

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.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

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 travel conditions. Find out where to go with our weather planner.