Aliso Viejo Weather in September

September in Aliso Viejo sees daytime temperatures around 30°C (86°F) and lows of 17°C (63°F) at night. The perfect weather makes it a good time to visit.

Rainfall in Aliso Viejo in September

Rain is expected on roughly a single day, totalling around 4.6 mm (0.2 in) for the month. Any rain that does arrive is likely to be fairly light and short-lived.

Temperature in Aliso Viejo in September

Aliso Viejo in September has perfect weather. Days reach 30°C (86°F) and nights cool to 17°C (63°F). This kind of day-to-night contrast is typical for this time of year. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest. On average, it is the warmest month of the year.

Sunshine in Aliso Viejo in September

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

September in Aliso Viejo can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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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 Aliso Viejo's climate page.

Aliso Viejo Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 3%  

Precipitation 4.6 mm (0.2 in)  

Rainy days a single day  

Sunshine 290 hours *  

Percentage Sunshine *  

* Data from: Corona, the United States of America (36 KM, 22 Miles).

What to Wear in Aliso 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Aliso 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 Aliso Viejo's climate page.

More climate data for Aliso Viejo

Temperature Rainfall Sunshine

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