Pacifica weather in March

In March, Pacifica sees average daytime highs of 57°F and overnight lows near 50°F, with 3.1 in of rain across 9.3 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 57°F through the month. The sky is clear or mostly clear about 36% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Pacifica's 9th-clearest and 4th-windiest month. For the whole year in context, see Pacifica's year-round climate.

Daytime high
57°
9th warmest
Overnight low
50°
4th coldest
Rainfall
3.1 in
9.3 wet days
Daylight
11 h 42 min
6:29 AM – 6:11 PM
Cloud cover
55%
9th clearest
Wind
9 mph
4th windiest
Solar energy
4.74 kWh/m²
Travel score
4.2
out of 10

Pacifica is city in San Mateo County, California, USA.

Density
1,197/km²
people per km²
Founded
1957

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 57°F through the month.

A typical March day in Pacifica reaches about 57°F in the afternoon and slips back to 50°F overnight — a 7°F spread between the day's warmth and the night's chill. On most days the high lands between 53°F and 62°F. Set against its neighbours, March runs on par with February and on par with April.

40°50°60°70°151015202531
Avg high (°F)Avg low (°F)
15649
25649
35650
45650
55650
65750
75750
85750
95750
105750
115750
125750
135750
145750
155750
165750
175750
185750
195750
205750
215750
225750
235750
245750
255750
265750
275750
285750
295750
305750
315750

Pacifica weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan55° / 48°4.0109.73.6
Feb56° / 49°4.29.410.53.8
Mar57° / 50°3.19.311.74.2
Apr58° / 51°1.55.312.94.8
May59° / 52°0.73.1145.5
Jun61° / 54°0.20.814.56.5
Jul63° / 55°0.00.114.37.1
Aug64° / 57°0.00.113.47.5
Sep65° / 57°0.10.512.37.7
Oct64° / 55°0.93.1117.1
Nov59° / 52°2.16.2105.1
Dec56° / 49°4.09.89.43.7

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 15% of March, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25248
35248
45149
55149
65149
75050
85050
95050
105050
115050
124852
134852
144852
154852
164951
174951
184951
194951
204951
215050
225149
235149
245248
255347
265446
275446
285545
295545
305545
315644

Chance of precipitation in March

Any precipitation

Pacifica gets around 3.1 in of rain over 9.3 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
334
433
533
633
732
831
931
1030
1130
1229
1329
1429
1529
1629
1729
1829
1930
2029
2129
2229
2328
2428
2527
2627
2726
2826
2925
3024
3124

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
241000
251000
261000
271000
281000
291000
30991
31991

Wind in March

Winds average 9 mph in March.

Across March, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
3110light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 06 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over March. Sunrise moves from 6:50 AM to 6:05 AM, and sunset from 5:56 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:505:56
211.16:495:57
311.26:485:58
411.26:465:59
511.36:456:00
611.36:436:01
711.36:426:02
811.46:416:03
911.46:396:04
1011.56:386:05
1111.56:366:06
1211.56:356:07
1311.66:336:08
1411.66:326:09
1511.76:306:10
1611.76:296:11
1711.76:276:12
1811.86:266:12
1911.86:246:13
2011.96:226:14
2111.96:216:15
2211.96:196:16
2312.06:186:17
2412.06:166:18
2512.16:156:19
2612.16:136:20
2712.26:126:21
2812.26:106:22
2912.26:086:23
3012.36:076:24
3112.36:056:25

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.74 kWh/m².

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 7.64 kWh/m² in June across the year — March's 4.74 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.1Bright
34.1Bright
44.2Bright
54.2Bright
64.3Bright
74.3Bright
84.4Bright
94.4Bright
104.5Bright
114.5Bright
124.5Bright
134.6Bright
144.6Bright
154.7Bright
164.7Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
215.0Bright
225.0Bright
235.1Bright
245.1Bright
255.2Bright
265.2Bright
275.3Bright
285.4Bright
295.4Bright
305.5Bright
315.5Bright
Planning a trip in March

Hazard calendar for Pacifica

In seasonPeak

In March, Pacifica sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Pacifica's rainy season runs November–March, when most of the year's rain falls.

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

Is March a good time to visit Pacifica?

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

4.2
Sightseeing
9th-best month of the year
0.0
Beach & pool
8th-best month of the year

March is a reasonable time to visit Pacifica for sightseeing.

What to pack for Pacifica in March

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

In March, Pacifica sees daytime highs around 57°F and nights near 50°F. Worth packing: a warm layer, rain gear and sun protection. About 9 days see rain.

a warm layerrain gearsun protection

Sea temperature near Pacifica in March

The nearest coast averages about 54°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 58°F and coldest in April near 53°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

52°54°56°58°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan53Bracing
Feb54Bracing
Mar54Bracing
Apr53Bracing
May53Bracing
Jun54Bracing
Jul56Bracing
Aug58Bracing
Sep58Bracing
Oct57Bracing
Nov56Bracing
Dec54Bracing

UV index in Pacifica in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 Pacifica peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 15UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Extreme
Jul10Extreme
Aug10Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Moderate

Air quality in Pacifica in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Pacifica is worst in August — around 25 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 1824 µg/m³Jun 1110 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar16Moderate
Apr12Moderate
May10Good
Jun10Good
Jul11Good
Aug25Moderate
Sep17Moderate
Oct20Moderate
Nov18Moderate
Dec13Moderate
Location & terrain

Where is Pacifica?

Pacifica sits at 37.6°N, 122.5°W, 82 ft above sea level, in United States. The nearest listed city is San Bruno, 4.3 mi away.

Topography around Pacifica

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

Within 2 miles, the terrain around Pacifica has significant variations in elevation — a maximum elevation change of 1,263 ft around an average of 302 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 1,991 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,383 ft.

The land around Pacifica is covered by trees (40%) and water (29%) within 2 miles, water (56%) and trees (21%) within 10 miles, and water (45%), trees (21%) and grassland (20%) within 50 miles.

2 miles
1,263 ft
10 miles
1,991 ft
50 miles
4,383 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
March weather nearby: San Bruno 4.3 mi · South San Francisco 5.0 mi · Millbrae 5.6 mi · Daly City 6.2 mi · Burlingame 6.8 mi · Visitacion Valley 8.7 mi · Parkside 8.7 mi · San Mateo 9.3 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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Pacifica (37.6138°, -122.4869°, elevation 82 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).