Imperial Beach weather in March

In March, Imperial Beach sees average daytime highs of 61°F and overnight lows near 53°F, with 2.1 in of rain across 5.9 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 61°F through the month. The sky is clear or mostly clear about 45% of the time in March, and the air most often feels dry.

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

Daytime high
61°
10th warmest
Overnight low
53°
4th coldest
Rainfall
2.1 in
5.9 wet days
Daylight
11 h 48 min
6:06 AM – 5:51 PM
Cloud cover
44%
11th clearest
Wind
6 mph
4th windiest
Solar energy
5.52 kWh/m²
Travel score
5.8
out of 10

Imperial Beach is city in San Diego County, California, United States.

Density
2,360/km²
people per km²
Founded
1887

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 61°F through the month.

A typical March day in Imperial Beach reaches about 61°F in the afternoon and slips back to 53°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 67°F. Set against its neighbours, March runs on par with February and about 2°F cooler than April.

40°50°60°70°151015202531
Avg high (°F)Avg low (°F)
16052
26052
36152
46152
56152
66152
76152
86153
96153
106153
116153
126153
136153
146153
156153
166153
176153
186153
196153
206153
216153
226153
236153
246153
256153
266153
276153
286153
296153
306253
316254

Imperial Beach weather by month

How March compares with the rest of the year at a glance. March is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 52°2.56.110.15.8
Feb61° / 52°3.1710.85.4
Mar61° / 53°2.15.911.85.8
Apr63° / 55°1.04.212.86.7
May65° / 58°0.42.113.67.5
Jun68° / 60°0.10.414.18.3
Jul72° / 65°0.10.413.98.8
Aug74° / 66°0.00.313.29.2
Sep73° / 65°0.20.812.29.0
Oct70° / 62°0.62.411.28.3
Nov66° / 56°1.03.610.37.4
Dec61° / 52°2.05.79.96.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 22% of March, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36238
46436
56436
66436
76535
86535
96634
106733
116733
126832
136832
146931
156832
166931
176931
186832
196931
206931
216832
226832
236832
246832
256832
266832
276832
286931
296931
306931
317030

Chance of precipitation in March

Any precipitation

Imperial Beach gets around 2.1 in of rain over 5.9 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 20% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
324
424
523
623
722
821
921
1020
1120
1220
1320
1419
1519
1619
1719
1819
1919
2019
2119
2219
2319
2418
2518
2618
2718
2817
2917
3017
3116

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3973
4964
5964
6964
7955
8955
9946
10946
11946
12946
13937
14937
15937
16937
17937
18946
19946
20946
21955
22955
23964
24964
25964
26964
27964
28964
29964
30964
31964

Wind in March

Winds average 6 mph in March.

Across March, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 12 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 66 minutes over March. Sunrise moves from 6:24 AM to 5:45 AM, and sunset from 5:39 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:245:39
211.36:235:40
311.36:225:41
411.36:215:41
511.46:205:42
611.46:185:43
711.46:175:44
811.56:165:45
911.56:155:45
1011.56:135:46
1111.66:125:47
1211.66:115:48
1311.66:095:48
1411.76:085:49
1511.76:075:50
1611.86:065:51
1711.86:045:51
1811.86:035:52
1911.96:025:53
2011.96:005:54
2111.95:595:54
2212.05:585:55
2312.05:565:56
2412.05:555:56
2512.15:545:57
2612.15:525:58
2712.15:515:59
2812.25:495:59
2912.25:486:00
3012.25:476:01
3112.35:456:01

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.52 kWh/m².

For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 7.97 kWh/m² in June across the year — March's 5.52 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.1Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.4Bright
135.4Bright
145.5Bright
155.5Bright
165.5Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.8Bright
235.8Bright
245.8Bright
255.9Bright
265.9Bright
276.0Bright
286.0Intense
296.0Intense
306.1Intense
316.1Intense
Planning a trip in March

Is March a good time to visit Imperial Beach?

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

5.8
Sightseeing
10th-best month of the year
0.9
Beach & pool
10th-best month of the year

March is a reasonable time to visit Imperial Beach for sightseeing.

What to pack for Imperial Beach in March

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

In March, Imperial Beach sees daytime highs around 61°F and nights near 53°F. Worth packing: a warm layer and sun protection. About 6 days see rain.

a warm layersun protection

Sea temperature near Imperial Beach in March

The nearest coast averages about 60°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 August at about 70°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.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan60Cool
Feb59Cool
Mar60Cool
Apr61Cool
May63Cool
Jun65Cool
Jul68Refreshing
Aug70Refreshing
Sep69Refreshing
Oct67Cool
Nov64Cool
Dec61Cool

UV index in Imperial Beach 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 Imperial Beach peaks around June 23 at about 11 (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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Imperial Beach 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 Imperial Beach is worst in October — around 33 µg/m³ PM2.5 (moderate), about 5.4× the cleanest month (May, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 1631 µg/m³May 176 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr9Good
May6Good
Jun9Good
Jul8Good
Aug9Good
Sep16Moderate
Oct33Moderate
Nov13Moderate
Dec17Moderate
Location & terrain

Where is Imperial Beach?

Imperial Beach sits at 32.6°N, 117.1°W, 20 ft above sea level, in United States. The nearest listed city is Chula Vista, 4.3 mi away.

Topography around Imperial Beach

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

Within 2 miles, the terrain around Imperial Beach has only modest variations in elevation — a maximum elevation change of 105 ft around an average of 16 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,152 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,450 ft.

The land around Imperial Beach is covered by artificial surfaces (36%) and water (35%) within 2 miles, water (43%) and artificial surfaces (35%) within 10 miles, and water (35%) and shrubs (24%) within 50 miles.

2 miles
105 ft
10 miles
1,152 ft
50 miles
6,450 ft
treesshrubsgrasslandartificial surfacesbare terrainwaterwetland
March weather nearby: Chula Vista 4.3 mi · National City 6.8 mi · Coronado 8.1 mi · Tijuana 8.7 mi · San Diego 9.3 mi · Pórticos de San Antonio 11 mi · La Presa 11 mi · La Joya 12 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 Imperial Beach (32.5839°, -117.1131°, elevation 20 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).