San Fernando weather in October

In October, San Fernando sees average daytime highs of 30°C and overnight lows near 20°C, with 67 mm of rain across 8.2 wet days and about 11.4 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 47% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 06 min by month's end. Set against the rest of the year, October is San Fernando's 3rd-clearest and 11th-windiest month. For the whole year in context, see San Fernando's year-round climate.

Daytime high
30°
7th warmest
Overnight low
20°
6th coldest
Rainfall
67 mm
8.2 wet days
Daylight
11 h 24 min
6:35 AM – 6:00 PM
Cloud cover
44%
3rd clearest
Wind
12 km/h
11th windiest
Solar energy
4.7 kWh/m²
Travel score
5.4
out of 10

San Fernando is municipal seat of San Fernando, State of Tamaulipas, 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 31°C in the first days to 29°C by the end.

A typical October day in San Fernando reaches about 30°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, October runs about 3°C cooler than September and about 4°C warmer than November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13222
23222
33122
43121
53121
63121
73121
83121
93121
103121
113121
123121
133021
143020
153020
163020
173020
183020
193020
203020
213019
222919
232919
242919
252919
262919
272919
282918
292918
302918
312818

How October really feels in San Fernando

Once humidity and wind are folded in, October averages 14 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
14
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 Fernando weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 12°254.410.67.7
Feb25° / 14°203.911.17.8
Mar28° / 17°324.911.86.8
Apr31° / 20°455.212.65.1
May33° / 23°496.513.23.8
Jun35° / 25°639.913.52.8
Jul35° / 25°698.813.42.6
Aug35° / 25°579.512.92.4
Sep33° / 23°11914.512.23.3
Oct30° / 20°678.211.45.4
Nov26° / 16°355.310.87.5
Dec23° / 13°244.110.57.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26436
36436
46436
56436
66535
76535
86535
96535
106535
116535
126535
136535
146634
156634
166634
176634
186733
196733
206733
216733
226733
236733
246733
256733
266733
276634
286634
296634
306634
316535

Chance of precipitation in October

Any precipitation

San Fernando gets around 67 mm of rain over 8.2 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 27% and peaks near 35% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
334
433
533
632
732
831
931
1030
1130
1230
1329
1429
1528
1628
1727
1826
1926
2025
2124
2223
2322
2422
2521
2620
2720
2819
2919
3018
3118

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 69% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13412204713
23413214713
33513214612
43513224612
54512224512
64512234511
74512234411
85512244410
95512244310
105612244310
11661325429
12661325419
13761326408
14771426398
15871427387
16871427377
17981427366
181081528355
191081528345
201191528334
211291529324
2212101529313
2313101529303
2414101429293
2515111429292
2616111429282
2716121429272
2817121429262
2918121529251
3018131528241
3119131528231

Wind in October

Winds average 12 km/h in October.

Across October, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light 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 October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over October. Sunrise moves from 6:28 AM to 6:44 AM, and sunset from 6:15 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:286:15
211.76:296:14
311.76:296:13
411.76:306:12
511.76:306:10
611.66:316:09
711.66:316:08
811.66:326:07
911.66:326:06
1011.66:326:05
1111.56:336:04
1211.56:336:04
1311.56:346:03
1411.56:346:02
1511.46:356:01
1611.46:356:00
1711.46:365:59
1811.46:365:58
1911.36:375:57
2011.36:385:56
2111.36:385:56
2211.36:395:55
2311.26:395:54
2411.26:405:53
2511.26:405:52
2611.26:415:52
2711.26:425:51
2811.16:425:50
2911.16:435:50
3011.16:435:49
3111.16:445:48

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.7 kWh/m².

For context, solar energy here swings from a low near 3.35 kWh/m² to a high of 6.8 kWh/m² in July across the year — October's 4.7 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
64.9Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.6Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.3Bright
314.2Bright
Planning a trip in October

Hazard calendar for San Fernando

In seasonPeak

In October, San Fernando sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.

San Fernando sits in the Atlantic hurricane belt; the season peaks August–October.

San Fernando's rainy season runs June–October, when most of the year's rain falls.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit San Fernando?

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

5.4
Sightseeing
6th-best month of the year
7.3
Beach & pool
4th-best month of the year

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

What to pack for San Fernando in October

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

In October, San Fernando sees daytime highs around 30°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

Sea temperature near San Fernando 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 at the nearest coast (about 58 km away) is warmest in September at about 29°C and coldest in February near 20°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb20Refreshing
Mar21Refreshing
Apr23Refreshing
May26Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct28Warm
Nov25Warm
Dec22Refreshing

UV index in San Fernando in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (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 Fernando peaks around April 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highExtremeVery highHighApr 17UV 11Jan 10UV 5
UV index (midday)Level
Jan5High
Feb7High
Mar8Very high
Apr12Extreme
May9Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct9Very high
Nov6High
Dec5High

Air quality in San Fernando 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 Fernando is worst in August — around 34 µg/m³ PM2.5 (moderate), about 5.6× the cleanest month (January, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 934 µg/m³Nov 186 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar11Good
Apr14Moderate
May23Moderate
Jun28Moderate
Jul34Moderate
Aug34Moderate
Sep17Moderate
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is San Fernando?

San Fernando sits at 24.8°N, 98.1°W, 44 m above sea level, in Mexico. The nearest listed city is Valle Hermoso, 98 km away.

Topography around San Fernando

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

Within 3 km, the terrain around San Fernando has only modest variations in elevation — a maximum elevation change of 64 m around an average of 45 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 135 m; within 80 km, large variations in elevation — a maximum elevation change of 1,049 m.

The land around San Fernando is covered by trees (37%), artificial surfaces (29%) and shrubs (21%) within 3 km, cropland (35%), trees (30%) and shrubs (22%) within 16 km, and shrubs (30%) and cropland (21%) within 80 km.

3 km
64 m
16 km
135 m
80 km
1,049 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Valle Hermoso 98 km · Ciudad Río Bravo 127 km · Heroica Matamoros 132 km · Brownsville 134 km · Reynosa 138 km · Linares 143 km · Mercedes 147 km · Weslaco 147 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 Fernando (24.8471°, -98.1488°, elevation 44 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).