San Carlos weather in April

In April, San Carlos sees average daytime highs of 28°C and overnight lows near 18°C, with 1 mm of rain across 0.3 wet days and about 12.6 hours of daylight. It is the 7th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 71% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 12 min at the start of April to 13 hours by month's end. Set against the rest of the year, April is San Carlos's 5th-clearest and 4th-windiest month. For the whole year in context, see San Carlos's year-round climate.

Daytime high
28°
7th warmest
Overnight low
18°
6th coldest
Rainfall
1 mm
0.3 wet days
Daylight
12 h 42 min
6:04 AM – 6:44 PM
Cloud cover
26%
5th clearest
Wind
13 km/h
4th windiest
Solar energy
7.53 kWh/m²
Travel score
7.9
out of 10

San Carlos is town in Guaymas Municipality, State of Sonora, Mexico.

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 27°C in the first days to 29°C by the end.

A typical April day in San Carlos reaches about 28°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, April runs about 2°C warmer than March and about 3°C cooler than May.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12716
22716
32716
42717
52717
62717
72717
82717
92717
102817
112817
122817
132817
142817
152817
162818
172818
182818
192818
202918
212918
222918
232918
242918
252919
262919
272919
282919
293019
303019

How April really feels in San Carlos

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

San Carlos weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 12°6110.48.8
Feb24° / 13°71.2118.8
Mar26° / 15°40.511.88.8
Apr28° / 18°10.312.67.9
May31° / 21°0013.46.1
Jun34° / 26°10.213.74.3
Jul35° / 29°102.413.63.1
Aug35° / 29°224.2133.0
Sep34° / 27°625.412.23.7
Oct32° / 23°182.311.35.5
Nov27° / 17°121.310.68.1
Dec23° / 13°101.210.38.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 8% of April, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27723
37723
47822
57822
67822
77822
87921
97822
107822
117822
127723
137723
147723
157723
167822
177822
187822
197921
207921
217921
228020
238020
248119
258119
268218
278317
288317
298515
308515

Chance of precipitation in April

Any precipitation

San Carlos gets around 1 mm of rain over 0.3 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 1% and peaks near 2% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
42
52
62
71
81
91
101
111
121
131
141
151
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300

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 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1732151
2732151
3732151
4732151
5722251
6722251
7712261
8712261
9702361
10702361
11692371
12692371
13692371
14682471
15672481
16662581
17652591
18652591
19642691
206326101
216127102
226027112
235928112
245729122
255630122
265530132
275331133
285232133
295033143
304933143

Wind in April

Winds average 13 km/h in April.

Across April, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in April

DaylightNight

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

Days grow by about 48 minutes over April. Sunrise moves from 6:21 AM to 5:51 AM, and sunset from 6:36 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:216:36
212.36:206:37
312.36:196:37
412.36:186:38
512.46:176:38
612.46:166:39
712.46:146:40
812.46:136:40
912.56:126:41
1012.56:116:41
1112.56:106:42
1212.66:096:42
1312.66:086:43
1412.66:076:43
1512.66:056:44
1612.76:046:44
1712.76:036:45
1812.76:026:45
1912.76:016:46
2012.86:006:47
2112.85:596:47
2212.85:586:48
2312.95:576:48
2412.95:566:49
2512.95:556:49
2612.95:546:50
2713.05:536:51
2813.05:526:51
2913.05:526:52
3013.05:516:52

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 7.53 kWh/m².

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 8.15 kWh/m² in May across the year — April's 7.53 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.2Intense
57.2Intense
67.2Intense
77.3Intense
87.3Intense
97.3Intense
107.4Intense
117.4Intense
127.4Intense
137.5Intense
147.5Intense
157.5Intense
167.6Intense
177.6Intense
187.6Intense
197.7Intense
207.7Intense
217.7Intense
227.7Intense
237.8Intense
247.8Intense
257.8Intense
267.8Intense
277.9Intense
287.9Intense
297.9Intense
307.9Intense
Planning a trip in April

Hazard calendar for San Carlos

In seasonPeak

None of San Carlos's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

San Carlos sits in the eastern Pacific hurricane zone; the season peaks August–September.

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

Is April a good time to visit San Carlos?

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

7.9
Sightseeing
6th-best month of the year
8.9
Beach & pool
1st-best month of the year

April is one of the better times to visit San Carlos for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Carlos in April

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

In April, San Carlos sees daytime highs around 28°C and nights near 18°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near San Carlos in April

The nearest coast averages about 21°C 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 30°C and coldest in February near 18°C.

It's comfortable for a long swim from Apr 6 to Dec 16 — about 8.4 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb18Cool
Mar19Cool
Apr21Refreshing
May24Refreshing
Jun27Warm
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct28Warm
Nov23Refreshing
Dec20Cool

UV index in San Carlos in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Carlos peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 14UV 12Dec 19UV 4
UV index (midday)Level
Jan5Moderate
Feb6High
Mar8Very high
Apr10Very high
May10Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct7Very high
Nov5High
Dec4Moderate

Air quality in San Carlos 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 Carlos is worst in July — around 18 µg/m³ PM2.5 (moderate), about 3.9× the cleanest month (January, 5 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1917 µg/m³Jan 115 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb5Good
Mar5Good
Apr6Good
May5Good
Jun8Good
Jul18Moderate
Aug13Moderate
Sep8Good
Oct5Good
Nov5Good
Dec5Good
Location & terrain

Where is San Carlos?

San Carlos sits at 28.0°N, 111.0°W, 0 m above sea level, in Mexico. The nearest listed city is Heroica Guaymas, 15 km away.

NavojoaHuatabampo

Topography around San Carlos

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Carlos.

Within 3 km, the terrain around San Carlos has only modest variations in elevation — a maximum elevation change of 236 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 838 m; within 80 km, large variations in elevation — a maximum elevation change of 1,146 m.

The land around San Carlos is covered by water (40%) and shrubs (39%) within 3 km, shrubs (46%) and water (46%) within 16 km, and shrubs (46%) and water (42%) within 80 km.

3 km
236 m
16 km
838 m
80 km
1,146 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Heroica Guaymas 15 km · Empalme 23 km · Miguel Alemán (La Doce) 107 km · Esperanza 117 km · Ciudad Obregón 121 km · Hermosillo 126 km · Navojoa 186 km · Huatabampo 187 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Carlos (27.9575°, -111.0435°, elevation 0 m), 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).