Cold steppe climate
Climate Costa Mesa - California
Annual high72ºF
Annual low56ºF
Precipitation13.33 inch
| Month | HighºF | LowºF | Precipinch |
|---|---|---|---|
| Jan | 67 | 47 | 2.91 |
| Feb | 66 | 49 | 2.95 |
| Mar | 67 | 51 | 1.90 |
| Apr | 69 | 54 | 0.89 |
| May | 72 | 58 | 0.23 |
| Jun | 74 | 61 | 0.08 |
| Jul | 78 | 64 | 0.04 |
| Aug | 80 | 65 | 0.03 |
| Sep | 79 | 64 | 0.22 |
| Oct | 75 | 59 | 0.75 |
| Nov | 71 | 52 | 1.25 |
| Dec | 66 | 46 | 2.08 |
- JanHigh 67ºFLow 47ºFPrecip 2.91 inch
- FebHigh 66ºFLow 49ºFPrecip 2.95 inch
- MarHigh 67ºFLow 51ºFPrecip 1.90 inch
- AprHigh 69ºFLow 54ºFPrecip 0.89 inch
- MayHigh 72ºFLow 58ºFPrecip 0.23 inch
- JunHigh 74ºFLow 61ºFPrecip 0.08 inch
- JulHigh 78ºFLow 64ºFPrecip 0.04 inch
- AugHigh 80ºFLow 65ºFPrecip 0.03 inch
- SepHigh 79ºFLow 64ºFPrecip 0.22 inch
- OctHigh 75ºFLow 59ºFPrecip 0.75 inch
- NovHigh 71ºFLow 52ºFPrecip 1.25 inch
- DecHigh 66ºFLow 46ºFPrecip 2.08 inch
Climate summary
What is the average weather in Costa Mesa, California?
Costa Mesa experiences a cold semi-arid climate, characterized by dry summers and wetter winters. Summers are warm, while winters remain mild. Precipitation is generally low throughout the year, often arriving in brief showers, contributing to the overall dry conditions.
Costa Mesa weather averages
Annual high72ºF
Annual low56ºF
Precipitation13.33 inch
Daily normals Costa Mesa - California - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 66.4 | 47.8 | 0.09 | 0.09 |
| Jan 2 | 66.5 | 47.8 | 0.19 | 0.19 |
| Jan 3 | 66.5 | 47.9 | 0.28 | 0.28 |
| Jan 4 | 66.6 | 47.9 | 0.37 | 0.37 |
| Jan 5 | 66.7 | 48.0 | 0.45 | 0.45 |
| Jan 6 | 66.7 | 48.0 | 0.54 | 0.54 |
| Jan 7 | 66.8 | 48.1 | 0.62 | 0.62 |
| Jan 8 | 66.9 | 48.2 | 0.71 | 0.71 |
| Jan 9 | 66.9 | 48.2 | 0.80 | 0.80 |
| Jan 10 | 67.0 | 48.3 | 0.89 | 0.89 |
| Jan 11 | 67.0 | 48.3 | 0.98 | 0.98 |
| Jan 12 | 67.1 | 48.4 | 1.07 | 1.07 |
| Jan 13 | 67.1 | 48.5 | 1.16 | 1.16 |
| Jan 14 | 67.1 | 48.5 | 1.24 | 1.24 |
| Jan 15 | 67.2 | 48.6 | 1.33 | 1.33 |
| Jan 16 | 67.2 | 48.6 | 1.41 | 1.41 |
| Jan 17 | 67.2 | 48.7 | 1.49 | 1.49 |
| Jan 18 | 67.2 | 48.7 | 1.57 | 1.57 |
| Jan 19 | 67.2 | 48.8 | 1.66 | 1.66 |
| Jan 20 | 67.2 | 48.9 | 1.74 | 1.74 |
| Jan 21 | 67.2 | 48.9 | 1.82 | 1.82 |
| Jan 22 | 67.2 | 48.9 | 1.90 | 1.90 |
| Jan 23 | 67.2 | 49.0 | 1.98 | 1.98 |
| Jan 24 | 67.2 | 49.0 | 2.06 | 2.06 |
| Jan 25 | 67.2 | 49.1 | 2.13 | 2.13 |
| Jan 26 | 67.2 | 49.1 | 2.21 | 2.21 |
| Jan 27 | 67.1 | 49.2 | 2.27 | 2.27 |
| Jan 28 | 67.1 | 49.2 | 2.35 | 2.35 |
| Jan 29 | 67.1 | 49.2 | 2.42 | 2.42 |
| Jan 30 | 67.0 | 49.3 | 2.51 | 2.51 |
| Jan 31 | 67.0 | 49.3 | 2.59 | 2.59 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Costa Mesa - November 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Nov 1 | 71.1 | 61.0 | 0.44 |
| Nov 2 | 75.9 | 55.9 | 0.00 |
| Nov 3 | 75.0 | 57.0 | 0.00 |
| Nov 4 | 73.9 | 60.1 | 0.00 |
| Nov 5 | 78.1 | 57.9 | 0.00 |
| Nov 6 | 86.0 | 57.0 | 0.00 |
| Nov 7 | 87.1 | 64.9 | 0.00 |
| Nov 8 | 88.0 | 59.0 | 0.00 |
| Nov 9 | 84.0 | 61.0 | 0.00 |
| Nov 10 | 84.0 | 61.0 | 0.00 |
| Nov 11 | – | – | – |
| Nov 12 | – | – | – |
| Nov 13 | – | – | – |
| Nov 14 | – | – | – |
| Nov 15 | – | – | – |
| Nov 16 | – | – | – |
| Nov 17 | – | – | – |
| Nov 18 | – | – | – |
| Nov 19 | – | – | – |
| Nov 20 | – | – | – |
| Nov 21 | – | – | – |
| Nov 22 | – | – | – |
| Nov 23 | – | – | – |
| Nov 24 | – | – | – |
| Nov 25 | – | – | – |
| Nov 26 | – | – | – |
| Nov 27 | – | – | – |
| Nov 28 | – | – | – |
| Nov 29 | – | – | – |
| Nov 30 | – | – | – |
The data for November 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature88.0ºF · Nov 8
- Lowest max temperature71.1ºF · Nov 1
- Highest min temperature64.9ºF · Nov 7
- Lowest min temperature55.9ºF · Nov 2
Geo Costa Mesa - California
Location
- Country
- United States
- State
- California
- County
- –
- City
- Costa Mesa
- Zip Code
- 92626
- Elevation
- 98 ft
- Longitude
- -117.92
- Latitude
- 33.64
- ICAO
- –
- IATA
- –