Costa Mesa weather in February

In February, Costa Mesa sees average daytime highs of 65°F and overnight lows near 50°F, with 3.1 in of rain across 6.1 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 65°F through the month. The sky is clear or mostly clear about 45% of the time in February, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of February to 11 h 12 min by month's end. Set against the rest of the year, February is Costa Mesa's 12th-clearest and 6th-windiest month. For the whole year in context, see Costa Mesa's year-round climate.

Daytime high: 65°; 10th warmest
Overnight low: 50°; 3rd coldest
Rainfall: 3.1 in; 6.1 wet days
Daylight: 10 h 48 min; 6:44 AM – 5:29 PM
Cloud cover: 47%; 12th clearest
Wind: 5 mph; 6th windiest
Solar energy: 3.96 kWh/m²
Travel score: 6.7; out of 10

Costa Mesa is city in Orange County, California, United States.

Density: 2,784/km²; people per km²
Founded: 1776

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← January Costa Mesa year-round climate March →Best places to visit in February

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 65°F through the month.

A typical February day in Costa Mesa reaches about 65°F in the afternoon and slips back to 50°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 58°F and 74°F. Set against its neighbours, February runs on par with January and about 2°F cooler than March.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Avg high (°F)	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65	65	64	64	64	64	64	64	64	64	64	65	65	65
Avg low (°F)	49	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	51	51	51	51	51	51	51	51	51	51	51	51

	Avg high (°F)	Avg low (°F)
1	65	49
2	65	50
3	65	50
4	65	50
5	65	50
6	65	50
7	65	50
8	65	50
9	65	50
10	65	50
11	65	50
12	65	50
13	65	50
14	65	50
15	65	50
16	65	50
17	64	51
18	64	51
19	64	51
20	64	51
21	64	51
22	64	51
23	64	51
24	64	51
25	64	51
26	65	51
27	65	51
28	65	51

Costa Mesa weather by month

How February compares with the rest of the year at a glance. February is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Daylight (hours)	Travel score
Jan	64° / 49°	2.8	5.2	10	6.8
Feb	65° / 50°	3.1	6.1	10.7	6.7
Mar	66° / 53°	1.8	5.1	11.7	7.0
Apr	69° / 55°	0.7	2.6	12.8	7.9
May	71° / 58°	0.3	1.5	13.7	8.3
Jun	74° / 61°	0.1	0.3	14.2	9.1
Jul	79° / 64°	0.1	0.4	14	9.0
Aug	81° / 65°	0.0	0.1	13.2	8.9
Sep	80° / 64°	0.1	0.5	12.2	8.8
Oct	76° / 60°	0.6	1.9	11.2	8.8
Nov	70° / 54°	0.7	2.4	10.3	8.1
Dec	65° / 49°	1.9	4.9	9.8	6.9

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in February, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of February, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Clearer (%)	62	63	63	62	62	62	61	61	61	60	59	59	59	57	57	57	57	58	57	57	57	57	57	56	56	56	56	56
Cloudier (%)	38	37	37	38	38	38	39	39	39	40	41	41	41	43	43	43	43	42	43	43	43	43	43	44	44	44	44	44

	Clearer (%)	Cloudier (%)
1	62	38
2	63	37
3	63	37
4	62	38
5	62	38
6	62	38
7	61	39
8	61	39
9	61	39
10	60	40
11	59	41
12	59	41
13	59	41
14	57	43
15	57	43
16	57	43
17	57	43
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	57	43
24	56	44
25	56	44
26	56	44
27	56	44
28	56	44

Chance of precipitation in February

Any precipitation

Costa Mesa gets around 3.1 in of rain over 6.1 wet days in February, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 24% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Rain chance (%)	16	17	17	17	18	19	19	20	20	21	21	22	22	22	22	23	23	23	23	23	23	23	23	23	24	23	23	23

	Rain chance (%)
1	16
2	17
3	17
4	17
5	18
6	19
7	19
8	20
9	20
10	21
11	21
12	22
13	22
14	22
15	22
16	23
17	23
18	23
19	23
20	23
21	23
22	23
23	23
24	23
25	24
26	23
27	23
28	23

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, February lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Dry (%)	96	96	96	96	95	95	95	95	94	94	94	94	93	93	93	93	93	93	93	94	94	94	94	94	94	94	94	94
Comfortable (%)	4	4	4	4	5	5	5	5	6	6	6	6	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	96	4
5	95	5
6	95	5
7	95	5
8	95	5
9	94	6
10	94	6
11	94	6
12	94	6
13	93	7
14	93	7
15	93	7
16	93	7
17	93	7
18	93	7
19	93	7
20	94	6
21	94	6
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	94	6
28	94	6

Wind in February

Winds average 5 mph in February.

Across February, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Wind speed (mph)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (mph)	Feels
1	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm

Sunrise & sunset in February

DaylightNight

Daylight runs from about 10 h 24 min at the start of February to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over February. Sunrise moves from 6:55 AM to 6:30 AM, and sunset from 5:16 PM to 5:41 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Daylight (h)	10.4	10.4	10.4	10.4	10.5	10.5	10.5	10.5	10.6	10.6	10.6	10.7	10.7	10.7	10.8	10.8	10.8	10.9	10.9	10.9	10.9	11.0	11.0	11.0	11.1	11.1	11.1	11.2
Sunrise (AM)	6:55	6:54	6:53	6:53	6:52	6:51	6:50	6:50	6:49	6:48	6:47	6:46	6:45	6:45	6:44	6:43	6:42	6:41	6:40	6:39	6:38	6:36	6:35	6:34	6:33	6:32	6:31	6:30
Sunset (PM)	5:16	5:17	5:18	5:19	5:20	5:20	5:21	5:22	5:23	5:24	5:25	5:26	5:27	5:28	5:29	5:30	5:31	5:32	5:33	5:33	5:34	5:35	5:36	5:37	5:38	5:39	5:40	5:41

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.4	6:55	5:16
2	10.4	6:54	5:17
3	10.4	6:53	5:18
4	10.4	6:53	5:19
5	10.5	6:52	5:20
6	10.5	6:51	5:20
7	10.5	6:50	5:21
8	10.5	6:50	5:22
9	10.6	6:49	5:23
10	10.6	6:48	5:24
11	10.6	6:47	5:25
12	10.7	6:46	5:26
13	10.7	6:45	5:27
14	10.7	6:45	5:28
15	10.8	6:44	5:29
16	10.8	6:43	5:30
17	10.8	6:42	5:31
18	10.9	6:41	5:32
19	10.9	6:40	5:33
20	10.9	6:39	5:33
21	10.9	6:38	5:34
22	11.0	6:36	5:35
23	11.0	6:35	5:36
24	11.0	6:34	5:37
25	11.1	6:33	5:38
26	11.1	6:32	5:39
27	11.1	6:31	5:40
28	11.2	6:30	5:41

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 3.96 kWh/m².

For context, solar energy here swings from a low near 2.98 kWh/m² to a high of 7.89 kWh/m² in June across the year — February's 3.96 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
Solar energy (kWh/m²)	3.6	3.6	3.6	3.7	3.7	3.7	3.8	3.8	3.8	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.1	4.1	4.2	4.2	4.3	4.3	4.3	4.4	4.4	4.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.6	Moderate
2	3.6	Moderate
3	3.6	Moderate
4	3.7	Moderate
5	3.7	Moderate
6	3.7	Moderate
7	3.8	Moderate
8	3.8	Moderate
9	3.8	Moderate
10	3.8	Moderate
11	3.8	Moderate
12	3.9	Moderate
13	3.9	Moderate
14	3.9	Moderate
15	4.0	Moderate
16	4.0	Moderate
17	4.0	Bright
18	4.0	Bright
19	4.1	Bright
20	4.1	Bright
21	4.2	Bright
22	4.2	Bright
23	4.3	Bright
24	4.3	Bright
25	4.3	Bright
26	4.4	Bright
27	4.4	Bright
28	4.5	Bright

Planning a trip in February

Is February a good time to visit Costa Mesa?

Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.7

Sightseeing

12th-best month of the year

2.3

Beach & pool

11th-best month of the year

February is a reasonable time to visit Costa Mesa for sightseeing.

What to pack for Costa Mesa in February

From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In February, Costa Mesa sees daytime highs around 65°F and nights near 50°F. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Costa Mesa in February

The nearest coast averages about 59°F in February — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 69°F and coldest in February near 59°F.

It's comfortable for a long swim from Jul 13 to Sep 28 — about 2.6 months when the water holds above 68°F.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	59	59	59	60	63	65	68	69	69	67	64	60
Comfort	Cool	Cool	Cool	Cool	Cool	Cool	Refreshing	Refreshing	Refreshing	Cool	Cool	Cool

	Sea temperature (°F)	Comfort
Jan	59	Cool
Feb	59	Cool
Mar	59	Cool
Apr	60	Cool
May	63	Cool
Jun	65	Cool
Jul	68	Refreshing
Aug	69	Refreshing
Sep	69	Refreshing
Oct	67	Cool
Nov	64	Cool
Dec	60	Cool

UV index in Costa Mesa in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Costa Mesa peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	5	5	7	8	10	10	10	8	6	3	3
Level	Moderate	Moderate	Moderate	Very high	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	5	Moderate
Mar	5	Moderate
Apr	7	Very high
May	8	Very high
Jun	10	Extreme
Jul	10	Extreme
Aug	10	Extreme
Sep	8	Very high
Oct	6	High
Nov	3	Moderate
Dec	3	Moderate

Air quality in Costa Mesa in February

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.

Air quality in Costa Mesa is worst in September — around 49 µg/m³ PM2.5 (poor), about 4.0× the cleanest month (May, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	18	19	19	17	12	17	19	32	49	21	21	18
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	18	Moderate
Feb	19	Moderate
Mar	19	Moderate
Apr	17	Moderate
May	12	Moderate
Jun	17	Moderate
Jul	19	Moderate
Aug	32	Moderate
Sep	49	Poor
Oct	21	Moderate
Nov	21	Moderate
Dec	18	Moderate

Location & terrain

Where is Costa Mesa?

Costa Mesa sits at 33.6°N, 117.9°W, 98 ft above sea level, in United States. The nearest listed city is Newport Beach, 1.9 mi away.

Topography around Costa Mesa

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Costa Mesa.

Within 2 miles, the terrain around Costa Mesa has only modest variations in elevation — a maximum elevation change of 125 ft around an average of 72 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,168 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,013 ft.

The land around Costa Mesa is covered by artificial surfaces (73%) within 2 miles, artificial surfaces (42%) and water (41%) within 10 miles, and water (42%) and artificial surfaces (25%) within 50 miles.

2 miles

125 ft

artificial surfaces 73%

10 miles

1,168 ft

artificial surfaces 42%

50 miles

10,013 ft

water 42%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland

← January Costa Mesa year-round climate March →Best places to visit in February

February weather nearby: Newport Beach 1.9 mi · UC Irvine 4.3 mi · Huntington Beach 5.0 mi · Fountain Valley 5.0 mi · Irvine 5.6 mi · Tustin Legacy 6.8 mi · Westpark 6.8 mi · Woodbridge 7.5 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Costa Mesa (33.6411°, -117.9187°, elevation 98 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	65	49
2	65	50
3	65	50
4	65	50
5	65	50
6	65	50
7	65	50
8	65	50
9	65	50
10	65	50
11	65	50
12	65	50
13	65	50
14	65	50
15	65	50
16	65	50
17	64	51
18	64	51
19	64	51
20	64	51
21	64	51
22	64	51
23	64	51
24	64	51
25	64	51
26	65	51
27	65	51
28	65	51

	Clearer (%)	Cloudier (%)
1	62	38
2	63	37
3	63	37
4	62	38
5	62	38
6	62	38
7	61	39
8	61	39
9	61	39
10	60	40
11	59	41
12	59	41
13	59	41
14	57	43
15	57	43
16	57	43
17	57	43
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	57	43
24	56	44
25	56	44
26	56	44
27	56	44
28	56	44

	Rain chance (%)
1	16
2	17
3	17
4	17
5	18
6	19
7	19
8	20
9	20
10	21
11	21
12	22
13	22
14	22
15	22
16	23
17	23
18	23
19	23
20	23
21	23
22	23
23	23
24	23
25	24
26	23
27	23
28	23

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	96	4
5	95	5
6	95	5
7	95	5
8	95	5
9	94	6
10	94	6
11	94	6
12	94	6
13	93	7
14	93	7
15	93	7
16	93	7
17	93	7
18	93	7
19	93	7
20	94	6
21	94	6
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	94	6
28	94	6

	Avg high (°F)	Avg low (°F)
1	65	49
2	65	50
3	65	50
4	65	50
5	65	50
6	65	50
7	65	50
8	65	50
9	65	50
10	65	50
11	65	50
12	65	50
13	65	50
14	65	50
15	65	50
16	65	50
17	64	51
18	64	51
19	64	51
20	64	51
21	64	51
22	64	51
23	64	51
24	64	51
25	64	51
26	65	51
27	65	51
28	65	51

	Clearer (%)	Cloudier (%)
1	62	38
2	63	37
3	63	37
4	62	38
5	62	38
6	62	38
7	61	39
8	61	39
9	61	39
10	60	40
11	59	41
12	59	41
13	59	41
14	57	43
15	57	43
16	57	43
17	57	43
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	57	43
24	56	44
25	56	44
26	56	44
27	56	44
28	56	44

	Rain chance (%)
1	16
2	17
3	17
4	17
5	18
6	19
7	19
8	20
9	20
10	21
11	21
12	22
13	22
14	22
15	22
16	23
17	23
18	23
19	23
20	23
21	23
22	23
23	23
24	23
25	24
26	23
27	23
28	23

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	96	4
5	95	5
6	95	5
7	95	5
8	95	5
9	94	6
10	94	6
11	94	6
12	94	6
13	93	7
14	93	7
15	93	7
16	93	7
17	93	7
18	93	7
19	93	7
20	94	6
21	94	6
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	94	6
28	94	6

	Avg high (°F)	Avg low (°F)
1	65	49
2	65	50
3	65	50
4	65	50
5	65	50
6	65	50
7	65	50
8	65	50
9	65	50
10	65	50
11	65	50
12	65	50
13	65	50
14	65	50
15	65	50
16	65	50
17	64	51
18	64	51
19	64	51
20	64	51
21	64	51
22	64	51
23	64	51
24	64	51
25	64	51
26	65	51
27	65	51
28	65	51

	Clearer (%)	Cloudier (%)
1	62	38
2	63	37
3	63	37
4	62	38
5	62	38
6	62	38
7	61	39
8	61	39
9	61	39
10	60	40
11	59	41
12	59	41
13	59	41
14	57	43
15	57	43
16	57	43
17	57	43
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	57	43
24	56	44
25	56	44
26	56	44
27	56	44
28	56	44

	Rain chance (%)
1	16
2	17
3	17
4	17
5	18
6	19
7	19
8	20
9	20
10	21
11	21
12	22
13	22
14	22
15	22
16	23
17	23
18	23
19	23
20	23
21	23
22	23
23	23
24	23
25	24
26	23
27	23
28	23

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	96	4
5	95	5
6	95	5
7	95	5
8	95	5
9	94	6
10	94	6
11	94	6
12	94	6
13	93	7
14	93	7
15	93	7
16	93	7
17	93	7
18	93	7
19	93	7
20	94	6
21	94	6
22	94	6
23	94	6
24	94	6
25	94	6
26	94	6
27	94	6
28	94	6