Costa Mesa Weather in August

Costa Mesa in August averages 27°C (81°F) during the day and 19°C (66°F) at night. This is the driest month of the year.

Rainfall in Costa Mesa in August

Take advantage of the dry conditions this month, with minimal rain expected. This month experiences about 0 days of rain according to historical data, averaging 0.1 mm (0 in).

Temperature in Costa Mesa in August

August is one of the better months to visit Costa Mesa. Expect 27°C (81°F) during the day and 19°C (66°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. At 19°C (66°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.

Sunshine in Costa Mesa in August

Enjoy a sunny month with about 351 hours of sunshine, the clear skies make Costa Mesa even more beautiful.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
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• 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 Costa Mesa's climate page.

Costa Mesa Temperature in August

Min Temperature 19°C (66°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 0%  

Precipitation 0.1 mm (0 in)  

Rainy days 0 days  

Sunshine 351 hours *  

Percentage Sunshine *  

* Data from: Corona, the United States of America (39 KM, 24 Miles).

What to Wear in Costa Mesa in August

Warm temperatures in August 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Costa Mesa in August

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 Costa Mesa's climate page.

More climate data for Costa Mesa

Temperature Rainfall Sunshine

See the full Costa Mesa climate overview or explore weather in the United States of America.