Costa Mesa
California, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Costa Mesa, CA

August, the last month of the summer, in Costa Mesa, is also a moderately hot month, with average temperature ranging between max 84.9°F (29.4°C) and min 64°F (17.8°C).

Temperature

The warmest month is August, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 64°F (17.8°C).

Rainfall

July and August are months with the least rain in Costa Mesa, California, when 0" (0.5mm) of rain is typically aggregated.

Daylight

In Costa Mesa, the average length of the day in August is 13.4h.

What is the warmest month in Costa Mesa?

The warmest month in Costa Mesa is August, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 64°F (17.8°C).

What is the temperature in August in Costa Mesa?

The average high-temperature, in August, is 84.9°F (29.4°C), while the average low-temperature is 64°F (17.8°C).

How much does it rain in Costa Mesa in August?

In Costa Mesa, in August, 0" (0.5mm) of precipitation is typically accumulated.

What is the driest month in Costa Mesa?

Months with the least rainfall in Costa Mesa, California, are July and August with 0" (0.5mm) of accumulated rain.

What is the average length of the day in August in Costa Mesa?

In Costa Mesa, the average length of the day in August is 13.4h.
Average temperature in August - Costa Mesa, CA
  • Average high temperature in August: 85°F

The warmest month (with the highest average high temperature) is August (85°F).
The month with the lowest average high temperature is December (69°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is August (64°F).
Coldest months (with the lowest average low temperature) are January and December (47°F).

Average rainfall in August - Costa Mesa, CA
  • Average rainfall in August: 0"

The wettest month (with the highest rainfall) is February (2.7").
Driest months (with the lowest rainfall) are July and August (0").

Average daylight in August - Costa Mesa, CA
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 10h).