Santee weather in April

In April, Santee sees average daytime highs of 68°F and overnight lows near 53°F, with 0.9 in of rain across 3.9 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 54% 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 Santee's 8th-clearest and 1st-windiest month. For the whole year in context, see Santee's year-round climate.

Daytime high
68°
8th warmest
Overnight low
53°
6th coldest
Rainfall
0.9 in
3.9 wet days
Daylight
12 h 48 min
5:24 AM – 6:12 PM
Cloud cover
39%
8th clearest
Wind
5 mph
1st windiest
Solar energy
6.73 kWh/m²
Travel score
7.6
out of 10

Santee is city in San Diego County, California, United States.

Density
1,350/km²
people per km²
Founded
1877

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 Santee 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 60°F and 78°F. Set against its neighbours, April runs about 3°F warmer than March and about 2°F cooler than May.

40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
16651
26651
36651
46651
56652
66652
76752
86752
96752
106752
116752
126752
136752
146853
156853
166853
176853
186853
196953
206953
216954
226954
236954
246954
256954
267054
277055
287055
297055
307055

Santee 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
Jan64° / 48°2.35.610.16.8
Feb64° / 48°2.9710.86.3
Mar65° / 50°1.95.811.86.8
Apr68° / 53°0.93.912.87.6
May70° / 56°0.4213.78.2
Jun74° / 60°0.10.614.19.2
Jul79° / 64°0.10.713.98.9
Aug81° / 65°0.10.513.28.7
Sep80° / 64°0.20.912.28.8
Oct76° / 59°0.62.511.28.7
Nov70° / 53°0.93.310.37.9
Dec64° / 48°1.95.29.96.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% 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 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26436
36535
46535
56634
66634
76733
86733
96832
106832
116931
126931
137030
147129
157129
167129
177228
187228
197228
207228
217228
227228
237327
247327
257327
267327
277327
287228
297228
307129

Chance of precipitation in April

Any precipitation

Santee gets around 0.9 in of rain over 3.9 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 13% and peaks near 16% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
116
216
315
415
515
615
715
815
914
1014
1114
1214
1313
1413
1513
1612
1712
1812
1911
2011
2111
2211
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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1973
2973
3973
4973
5973
6973
7973
8973
9964
10964
11964
12964
13955
14955
15955
16946
17946
18937
19937
20928
21928
22919
23919
249010
259010
269010
278911
288911
298812
308812

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 5:43 AM to 5:08 AM, and sunset from 6:02 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:436:02
212.35:426:02
312.45:416:03
412.45:396:04
512.45:386:05
612.55:376:05
712.55:356:06
812.55:346:07
912.65:336:07
1012.65:316:08
1112.65:306:09
1212.75:296:10
1312.75:286:10
1412.75:266:11
1512.85:256:12
1612.85:246:12
1712.85:236:13
1812.95:216:14
1912.95:206:15
2012.95:196:15
2113.05:186:16
2213.05:176:17
2313.05:156:18
2413.15:146:18
2513.15:136:19
2613.15:126:20
2713.25:116:21
2813.25:106:21
2913.25:096:22
3013.35:086:23

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.73 kWh/m².

For context, solar energy here swings from a low near 3.14 kWh/m² to a high of 8.08 kWh/m² in June across the year — April's 6.73 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.4Intense
76.4Intense
86.5Intense
96.5Intense
106.5Intense
116.6Intense
126.6Intense
136.7Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.9Intense
206.9Intense
216.9Intense
227.0Intense
237.0Intense
247.0Intense
257.0Intense
267.1Intense
277.1Intense
287.1Intense
297.1Intense
307.1Intense
Planning a trip in April

Is April a good time to visit Santee?

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 Santee for general sightseeing.

What to pack for Santee in April

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

In April, Santee sees daytime highs around 68°F and nights near 53°F. Pack sun protection. About 4 days see rain.

sun protection

Sea temperature near Santee 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 at the nearest coast (about 17 mi away) 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 Santee in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santee peaks around June 22 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 22UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Santee 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 Santee is worst in September — around 26 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (May, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 1625 µg/m³May 168 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar12Moderate
Apr11Good
May8Good
Jun11Good
Jul11Good
Aug15Moderate
Sep26Moderate
Oct14Moderate
Nov12Moderate
Dec16Moderate
Location & terrain

Where is Santee?

Santee sits at 32.8°N, 117.0°W, 351 ft above sea level, in United States. The nearest listed city is Winter Gardens, 2.5 mi away.

Topography around Santee

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

Within 2 miles, the terrain around Santee has significant variations in elevation — a maximum elevation change of 866 ft around an average of 446 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,278 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,450 ft.

The land around Santee is covered by artificial surfaces (69%) within 2 miles, artificial surfaces (33%), shrubs (31%) and trees (21%) within 10 miles, and shrubs (27%) and water (26%) within 50 miles.

2 miles
866 ft
10 miles
3,278 ft
50 miles
6,450 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Winter Gardens 2.5 mi · Bostonia 3.1 mi · El Cajon 3.1 mi · Lakeside 3.1 mi · Casa de Oro-Mount Helix 5.0 mi · La Mesa 5.6 mi · Spring Valley 6.8 mi · Rancho San Diego 6.8 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 Santee (32.8384°, -116.9739°, elevation 351 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).