Costa Mesa Weather in October
During October, Costa Mesa experiences high daytime temperatures of 26°C (79°F) and cooler nights around 16°C (61°F). Rainfall is low, averaging just 12 mm (0.5 in) for the month.
Rainfall in Costa Mesa in October
Typically, about 3 days will experience rainfall, with an average of 12 mm (0.5 in) for the month. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Costa Mesa in October
October is a perfect month in Costa Mesa, with 26°C (79°F) during the day and 16°C (61°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows of 16°C (61°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.
Sunshine in Costa Mesa in October
Enjoy a sunny month with about 252 hours of sunshine, the clear skies make Costa Mesa even more beautiful.If you're inclined towards comfortable temperatures and drier conditions, October is a good time to visit Costa Mesa.
Check the conditions for any month of the year.
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 October
Min Temperature
16°C (61°F)
Max Temperature
26°C (79°F)
Chance of Rain
10%
Precipitation
12 mm (0.5 in)
Rainy days
3 days
Sunshine
252 hours *
Percentage Sunshine
*
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
perfect weather
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unpleasant
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What to Wear in Costa Mesa in October
Warm but pleasant conditions in Costa Mesa in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Costa Mesa in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
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.
See the full Costa Mesa climate overview or explore weather in the United States of America.
