San Clemente weather in April

In April, San Clemente sees average daytime highs of 68°F and overnight lows near 53°F, with 0.9 in of rain across 3.3 wet days and about 12.8 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 66°F in the first days to 70°F by the end. The sky is clear or mostly clear about 55% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 18 min by month's end. Set against the rest of the year, April is San Clemente's 8th-clearest and 1st-windiest month. For the whole year in context, see San Clemente's year-round climate.

Daytime high
68°
8th warmest
Overnight low
53°
6th coldest
Rainfall
0.9 in
3.3 wet days
Daylight
12 h 48 min
5:26 AM – 6:16 PM
Cloud cover
38%
8th clearest
Wind
5 mph
1st windiest
Solar energy
6.61 kWh/m²
Travel score
7.6
out of 10

San Clemente is city in Orange County, California, United States.

Density
1,300/km²
people per km²
Founded
1928

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 66°F in the first days to 70°F by the end.

A typical April day in San Clemente reaches about 68°F in the afternoon and slips back to 53°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 59°F and 78°F. Set against its neighbours, April runs about 3°F warmer than March and about 3°F cooler than May.

40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
16651
26651
36651
46651
56652
66652
76652
86652
96752
106752
116752
126752
136752
146753
156853
166853
176853
186853
196853
206953
216954
226954
236954
246954
256954
267054
277055
287055
297055
307055

San Clemente weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan63° / 47°3.15.9106.4
Feb63° / 48°3.76.810.86.2
Mar65° / 50°2.16.211.76.7
Apr68° / 53°0.93.312.87.6
May71° / 56°0.4213.78.2
Jun75° / 60°0.10.414.29.2
Jul80° / 65°0.10.4148.8
Aug82° / 66°0.10.213.28.4
Sep81° / 64°0.20.812.28.7
Oct76° / 59°0.72.611.28.7
Nov69° / 52°1.03.210.37.9
Dec63° / 47°2.24.99.86.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26436
36535
46634
56634
66634
76733
86733
96832
106931
116931
127030
137129
147129
157228
167327
177327
187327
197525
207525
217525
227525
237525
247525
257525
267525
277525
287525
297426
307426

Chance of precipitation in April

Any precipitation

San Clemente gets around 0.9 in of rain over 3.3 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 14% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
114
214
313
413
512
612
712
812
912
1012
1111
1211
1311
1411
1511
1610
1710
1810
1910
2010
2110
2210
2310
2410
2510
2610
2710
2810
2910
3010

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19550
29460
39460
49460
59460
69460
79460
89460
99460
109370
119370
129370
139370
149280
159280
169190
179091
1889101
1989101
2088111
2187121
2285132
2384142
2483152
2582162
2681172
2780182
2879192
2978202
3077212

Wind in April

Winds average 5 mph in April, the windiest month of the year.

Across April, 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.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over April. Sunrise moves from 5:46 AM to 5:09 AM, and sunset from 6:04 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:466:04
212.35:446:05
312.45:436:06
412.45:426:07
512.55:406:07
612.55:396:08
712.55:386:09
812.65:366:10
912.65:356:10
1012.65:346:11
1112.75:326:12
1212.75:316:13
1312.75:306:13
1412.85:286:14
1512.85:276:15
1612.85:266:16
1712.95:256:16
1812.95:236:17
1912.95:226:18
2013.05:216:19
2113.05:206:19
2213.05:186:20
2313.15:176:21
2413.15:166:22
2513.15:156:22
2613.25:146:23
2713.25:136:24
2813.25:126:25
2913.25:106:25
3013.35:096:26

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.61 kWh/m².

For context, solar energy here swings from a low near 3.01 kWh/m² to a high of 7.82 kWh/m² in June across the year — April's 6.61 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.1Intense
36.1Intense
46.2Intense
56.2Intense
66.3Intense
76.3Intense
86.3Intense
96.4Intense
106.4Intense
116.5Intense
126.5Intense
136.5Intense
146.6Intense
156.6Intense
166.7Intense
176.7Intense
186.7Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in April

Is April a good time to visit San Clemente?

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

7.6
Sightseeing
8th-best month of the year
3.9
Beach & pool
8th-best month of the year

April is one of the better times to visit San Clemente for general sightseeing.

What to pack for San Clemente in April

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

In April, San Clemente sees daytime highs around 68°F and nights near 53°F. Pack sun protection. About 3 days see rain.

sun protection

Sea temperature near San Clemente in April

The nearest coast averages about 61°F in April — 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 January near 59°F.

It's comfortable for a long swim from Jul 6 to Oct 6 — about 3.1 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb59Cool
Mar60Cool
Apr61Cool
May63Cool
Jun66Cool
Jul69Refreshing
Aug70Refreshing
Sep70Refreshing
Oct67Cool
Nov64Cool
Dec61Cool

UV index in San Clemente in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Clemente peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJun 23UV 10Dec 16UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in San Clemente in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Clemente 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1447 µg/m³May 1713 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar19Moderate
Apr17Moderate
May12Moderate
Jun17Moderate
Jul19Moderate
Aug32Moderate
Sep49Poor
Oct21Moderate
Nov21Moderate
Dec18Moderate
Location & terrain

Where is San Clemente?

San Clemente sits at 33.4°N, 117.6°W, 233 ft above sea level, in United States. The nearest listed city is Dana Point, 5.6 mi away.

Topography around San Clemente

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

Within 2 miles, the terrain around San Clemente has significant variations in elevation — a maximum elevation change of 886 ft around an average of 236 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,280 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,109 ft.

The land around San Clemente is covered by artificial surfaces (35%), water (27%) and trees (21%) within 2 miles, water (44%) within 10 miles, and water (36%) and artificial surfaces (22%) within 50 miles.

2 miles
886 ft
10 miles
2,280 ft
50 miles
6,109 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Dana Point 5.6 mi · San Juan Capistrano 6.2 mi · Laguna Niguel 8.7 mi · Ladera Ranch 9.9 mi · Aliso Viejo 12 mi · Mission Viejo 12 mi · Laguna Beach 12 mi · Laguna Hills 14 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 San Clemente (33.427°, -117.612°, elevation 233 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).