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

Wondering what the weather is like in Julian during September? Check out this detailed guide to the month’s weather conditions.

Temperatures

Experience perfect weather in Julian during September, featuring high temperatures and low rainfall. Enjoy the summer season during this month. During the day, temperatures usually reach up to 28°C. At night, they tend to fall to approximately 14°C.

Precipitation

Julian in September usually receives low rainfall, averaging around 11 mm for the month. Rain is expected on roughly 3 days.

Average sunshine

There are approximately 253 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May, June, July, August, September and October 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 Julian climate page with graphs.

 

Julian, monthly averages in September

Min Temperature 14°C  

Max Temperature 28°C  

Chance of Rain 10%  

Precipitation 11 mm  

Rainy days 3 days  

Humidity 74% *  

Sunshine 253 hours *  

Percentage Sunshine 68% *  

Data from: San Diego, the United States of America (66 KM, 41 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

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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 Julian.

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.