San Carlos weather in July

In July, San Carlos sees average daytime highs of 35°C and overnight lows near 29°C, with 10 mm of rain across 2.4 wet days and about 13.6 hours of daylight. It is the 1st-warmest and 6th-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 July, and the air most often feels oppressive.

Daylight stretches from about 13 h 48 min at the start of July to 13 h 24 min by month's end. Set against the rest of the year, July is San Carlos's 12th-clearest and 1st-windiest month. For the whole year in context, see San Carlos's year-round climate.

Daytime high
35°
1st warmest
Overnight low
29°
11th coldest
Rainfall
10 mm
2.4 wet days
Daylight
13 h 36 min
5:41 AM – 7:18 PM
Cloud cover
41%
12th clearest
Wind
14 km/h
1st windiest
Solar energy
7.08 kWh/m²
Travel score
3.1
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 July

Average highAverage lowShaded bands: 10–90% of days

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

A typical July 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, July runs about 1°C warmer than June and on par with August.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13528
23528
33528
43528
53528
63528
73528
83528
93528
103528
113529
123529
133529
143529
153529
163529
173529
183529
193529
203529
213529
223529
233529
243529
253529
263529
273529
283529
293529
303529
313529

How July really feels in San Carlos

Once humidity and wind are folded in, July 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 July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

San Carlos weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 6th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of July, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28317
38218
48119
58020
67921
77822
87723
97624
107624
117525
127525
137327
147327
157327
167228
177129
187129
197030
206931
216931
226832
236832
246832
256733
266733
276832
286832
296832
306832
317030

Chance of precipitation in July

Any precipitation

San Carlos gets around 10 mm of rain over 2.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
35
45
56
66
76
87
97
107
118
128
138
148
158
168
178
188
198
208
219
229
239
249
258
268
278
288
298
308
318

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
111595925
201496026
301495927
401385929
501385830
601385731
701285732
801285633
901285534
1001275436
1101275337
1201275139
1301275040
1401265042
1501164944
1601154845
1701154747
1800144649
1900144550
2000134452
2100034255
2200034156
2300034057
2400023959
2500023860
2600023761
2700023662
2800023563
2900023464
3000023365
3100023266

Wind in July

Winds average 14 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 48 min at the start of July to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over July. Sunrise moves from 5:35 AM to 5:49 AM, and sunset from 7:20 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:357:20
213.75:357:20
313.75:367:20
413.75:367:20
513.75:367:20
613.75:377:20
713.75:377:20
813.75:387:20
913.75:387:20
1013.75:397:20
1113.75:397:19
1213.75:397:19
1313.75:407:19
1413.65:407:19
1513.65:417:18
1613.65:417:18
1713.65:427:18
1813.65:427:18
1913.65:437:17
2013.65:437:17
2113.55:447:16
2213.55:457:16
2313.55:457:16
2413.55:467:15
2513.55:467:15
2613.55:477:14
2713.45:477:14
2813.45:487:13
2913.45:487:12
3013.45:497:12
3113.45:497:11

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.08 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 — July's 7.08 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.4Intense
47.4Intense
57.4Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.2Intense
117.2Intense
127.2Intense
137.2Intense
147.1Intense
157.1Intense
167.1Intense
177.1Intense
187.0Intense
197.0Intense
207.0Intense
217.0Intense
227.0Intense
237.0Intense
247.0Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
316.9Intense
Planning a trip in July

Hazard calendar for San Carlos

In seasonPeak

In July, 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 July a good time to visit San Carlos?

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

3.1
Sightseeing
11th-best month of the year
6.7
Beach & pool
10th-best month of the year

July 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 July

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

In July, San Carlos sees daytime highs around 35°C and nights near 29°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near San Carlos in July

The nearest coast averages about 29°C in July — 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (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 July

GoodModeratePoorUnhealthyVery unhealthy

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