Mission Viejo Weather in September

Mission Viejo in September averages 31°C (88°F) during the day and 16°C (61°F) at night. Minimal rainfall is typical for this time of year.

Rainfall in Mission Viejo in September

Typically, you can expect about a single day of rain this month, with 4.1 mm (0.2 in) on average. Any rain that does arrive is likely to be fairly light and short-lived.

Temperature in Mission Viejo in September

The temperature in Mission Viejo in September is perfect. Daytime highs reach 31°C (88°F), with nights dropping to 16°C (61°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. Remember, these are typical temperatures, and there can be hotter days. Dress appropriately and stay hydrated to remain comfortable.

Sunshine in Mission Viejo in September

Enjoy a sunny month with about 290 hours of sunshine, the clear skies make Mission Viejo even more beautiful.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May, June, October and November typically offer the best weather for Mission Viejo.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Mission Viejo's climate page.

Mission Viejo Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 3%  

Precipitation 4.1 mm (0.2 in)  

Rainy days a single day  

Sunshine 290 hours *  

Percentage Sunshine *  

* Data from: Corona, the United States of America (32 KM, 19 Miles).

What to Wear in Mission Viejo in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Mission Viejo in September

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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Mission Viejo's climate page.

More climate data for Mission Viejo

Temperature Rainfall Sunshine

See the full Mission Viejo climate overview or explore weather in the United States of America.