San Carlos weather in August

In August, San Carlos sees average daytime highs of 35°C and overnight lows near 29°C, with 22 mm of rain across 4.2 wet days and about 13 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 56% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 18 min at the start of August to 12 h 36 min by month's end. Set against the rest of the year, August is San Carlos's 11th-clearest and 3rd-windiest month. For the whole year in context, see San Carlos's year-round climate.

Daytime high
35°
1st warmest
Overnight low
29°
12th coldest
Rainfall
22 mm
4.2 wet days
Daylight
13 hours
5:58 AM – 6:58 PM
Cloud cover
38%
11th clearest
Wind
13 km/h
3rd windiest
Solar energy
6.58 kWh/m²
Travel score
3.0
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical August day in San Carlos reaches about 35°C in the afternoon and slips back to 29°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 37°C. Set against its neighbours, August runs on par with July and about 1°C warmer than September.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13529
23529
33529
43529
53529
63529
73529
83529
93529
103529
113529
123529
133529
143529
153529
163529
173529
183529
193529
203529
213529
223529
233529
243529
253529
263529
273529
283529
293529
303528
313528

How August really feels in San Carlos

Once humidity and wind are folded in, August averages 31 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
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

San Carlos weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27129
37129
47228
57228
67426
77426
87426
97525
107525
117525
127426
137426
147426
157426
167426
177426
187426
197426
207525
217525
227525
237525
247525
257624
267624
277624
287624
297624
307723
317723

Chance of precipitation in August

Any precipitation

San Carlos gets around 22 mm of rain over 4.2 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 22% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
18
28
38
48
58
68
78
89
99
1010
1111
1211
1312
1413
1513
1614
1715
1815
1916
2016
2117
2218
2318
2419
2519
2620
2720
2821
2921
3022
3122

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1023167
2023068
3022969
4022870
5022771
6012673
7012574
8012376
9012277
10012178
11012178
12012079
13011980
14011980
15011881
16011881
17011782
18011782
19011782
20021682
21021682
22121681
23121582
24121582
25121483
26131482
27131383
28131284
29131284
30131185
31131185

Wind in August

Winds average 13 km/h in August.

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

051015151015202531
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
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 18 min at the start of August to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over August. Sunrise moves from 5:50 AM to 6:06 AM, and sunset from 7:10 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:507:10
213.35:517:10
313.35:517:09
413.35:527:08
513.35:527:08
613.25:537:07
713.25:537:06
813.25:547:05
913.25:547:05
1013.15:557:04
1113.15:557:03
1213.15:567:02
1313.15:577:01
1413.15:577:00
1513.05:586:59
1613.05:586:58
1713.05:596:57
1813.05:596:56
1912.96:006:55
2012.96:006:54
2112.96:016:53
2212.96:016:52
2312.86:026:51
2412.86:026:50
2512.86:036:49
2612.76:036:48
2712.76:046:47
2812.76:046:46
2912.76:056:45
3012.66:056:44
3112.66:066:43

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.58 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 — August's 6.58 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.8Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.5Intense
186.5Intense
196.5Intense
206.4Intense
216.4Intense
226.4Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.1Intense
Planning a trip in August

Hazard calendar for San Carlos

In seasonPeak

In August, San Carlos sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.

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 August a good time to visit San Carlos?

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

3.0
Sightseeing
12th-best month of the year
6.4
Beach & pool
12th-best month of the year

August is a weaker month for outdoor sightseeing in San Carlos. The water and warmth also suit a beach or pool day.

What to pack for San Carlos in August

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

In August, San Carlos sees daytime highs around 35°C and nights near 29°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near San Carlos in August

The nearest coast averages about 30°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (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 August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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
August 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).