When to visit
Costa Mesa?

Discover the best time of year, based on historical climate, temperature, and precipitation.

Costa Mesa
California Republic · United States of America

The best weather in Costa Mesa is from June, July, August. — consistent weather climate

Climate score
September
95

Perfect climate

☀️Pleasant

Temperature
17–24°C
Pleasant nights
Feels like
19–26°C
Slightly humid
Precipitation
21mm
Moderate rain · 2 days
Sunshine
10.8h
Mostly clear
Humidity (%)
81%
Slightly humid
Annual Climate Analysis
Temperature, Rain & Feels Like
Rain
Actual Temp
Feels Like
0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Advertisement
Monthly Overview
Score7271659295981009895969673
ClimateMildMildMildMildMildPleasantPleasantPleasantPleasantPleasantMildMild
Temperature9–17°C9–17°C10–16°C12–18°C14–20°C16–22°C17–23°C18–24°C17–24°C15–23°C11–20°C10–17°C
Feels like7–15°C7–15°C8–15°C11–18°C14–20°C16–23°C19–25°C20–27°C19–26°C15–23°C10–18°C8–16°C
Precipitation73mm
6 days
81mm
7 days
98mm
11 days
26mm
5 days
8mm
3 days
4mm
2 days
1mm
0 days
18mm
1 days
21mm
2 days
11mm
2 days
17mm
2 days
73mm
7 days
Sunshine8.5h
☀︎ 84%
9.1h
☀︎ 83%
10.1h
☀︎ 84%
10.8h
☀︎ 83%
11.5h
☀︎ 82%
12.1h
☀︎ 84%
12.6h
☀︎ 89%
11.8h
☀︎ 88%
10.8h
☀︎ 87%
9.6h
☀︎ 85%
9.3h
☀︎ 89%
7.7h
☀︎ 77%
WindS · 17 km/hSW · 20 km/hSW · 21 km/hSW · 20 km/hSW · 20 km/hSW · 19 km/hSW · 19 km/hSW · 19 km/hSW · 19 km/hSW · 18 km/hSW · 17 km/hSW · 15 km/h
Humidity (%)76%71%80%78%78%78%81%82%81%78%68%76%
Day length10.2h11.0h12.0h13.0h13.9h14.3h14.1h13.4h12.4h11.3h10.4h10.0h

Frequently asked questions

What is the best time to visit Costa Mesa?

The best time to visit Costa Mesa is December, June, October, May, April, July, August, November, September, January, February, with temperatures between 9 °C and 24 °C. The best month is December. December is low season.

What is the weather like in Costa Mesa?

Costa Mesa has a climate with an overall score of 8.8/10. Annual temperatures range from 9 °C to 24 °C.

What is the hottest month in Costa Mesa?

The hottest month in Costa Mesa is August, with average highs of 24 °C and lows of 18 °C.

What is the rainiest month in Costa Mesa?

The rainiest month in Costa Mesa is March, with an average of 98 mm of precipitation.