San Carlos weather in October

In October, San Carlos sees average daytime highs of 32°C and overnight lows near 23°C, with 18 mm of rain across 2.3 wet days and about 11.3 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 30°C by the end. The sky is clear or mostly clear about 83% of the time in October, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 54 min by month's end. Set against the rest of the year, October is San Carlos's 3rd-clearest and 12th-windiest month. For the whole year in context, see San Carlos's year-round climate.

Daytime high
32°
5th warmest
Overnight low
23°
8th coldest
Rainfall
18 mm
2.3 wet days
Daylight
11 h 18 min
6:30 AM – 5:49 PM
Cloud cover
18%
3rd clearest
Wind
11 km/h
12th windiest
Solar energy
5.37 kWh/m²
Travel score
5.5
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 October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 33°C in the first days to 30°C by the end.

A typical October day in San Carlos reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 35°C. Set against its neighbours, October runs about 2°C cooler than September and about 5°C warmer than November.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13326
23325
33325
43325
53325
63325
73324
83324
93324
103224
113224
123223
133223
143223
153223
163223
173222
183122
193122
203122
213122
223121
233121
243121
253021
263021
273020
283020
293020
303020
313020

How October really feels in San Carlos

Once humidity and wind are folded in, October averages 20 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
20
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

San Carlos weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 3rd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 83% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 6% of October, with mostly cloudy or overcast conditions the remaining 12%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
29010
39010
49010
59010
69010
79010
89010
98911
108911
118911
129010
139010
148911
158911
168911
178911
188812
198812
208812
218812
228812
238713
248713
258713
268614
278614
288515
298416
308317
318317

Chance of precipitation in October

Any precipitation

San Carlos gets around 18 mm of rain over 2.3 wet days in October. 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 12% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
112
211
311
411
511
611
710
810
910
109
119
128
138
148
157
167
177
186
196
205
215
225
235
244
254
264
274
284
294
304
313

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1139243033
21410263030
31411272927
42413282925
52514292822
62515302720
73616312717
83618322615
93719332513
104820342411
114821342310
12492235228
134102335217
144102435206
154112535196
165122535195
175132634185
185132634174
195142734164
205152734153
216162733153
226172733143
237182832132
248192831122
259202930112
269212929101
2710213028101
281222302791
291323302581
301423312570
311523322360

Wind in October

Winds average 11 km/h in October, the calmest month.

Across October, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over October. Sunrise moves from 6:21 AM to 6:40 AM, and sunset from 6:05 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:216:05
211.76:226:04
311.76:226:03
411.76:236:02
511.66:236:01
611.66:245:59
711.66:245:58
811.56:255:57
911.56:255:56
1011.56:265:55
1111.56:275:54
1211.46:275:53
1311.46:285:52
1411.46:285:51
1511.36:295:50
1611.36:305:49
1711.36:305:48
1811.36:315:47
1911.26:315:46
2011.26:325:45
2111.26:335:44
2211.26:335:43
2311.16:345:42
2411.16:355:41
2511.16:355:41
2611.16:365:40
2711.06:375:39
2811.06:385:38
2911.06:385:37
3011.06:395:37
3110.96:405:36

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.37 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 — October's 5.37 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
314.9Bright
Planning a trip in October

Hazard calendar for San Carlos

In seasonPeak

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

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

5.5
Sightseeing
8th-best month of the year
8.4
Beach & pool
4th-best month of the year

October is a reasonable time to visit San Carlos for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Carlos in October

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

In October, San Carlos sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near San Carlos in October

The nearest coast averages about 28°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 7 — 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 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 October

GoodModeratePoorUnhealthyVery unhealthy

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