Heroica Matamoros in Fall
In fall (September, October and November), Heroica Matamoros sees average daytime highs around 29°C and overnight lows near 21°C, with 223 mm of rain over about 33 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 33°C in early September to 24°C by late November. The sky is clear or mostly clear about 42% of the time across fall, and the air most often feels oppressive.
Fall is Heroica Matamoros's 3rd-best season to visit on our travel score. For the whole year in context, see Heroica Matamoros's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 223 mm
- 33 wet days
- Avg wind
- 15 km/h
- Travel score
- 5.6
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Heroica Matamoros in Fall
Over the season highs ease from about 33°C in early September to 24°C by late November.
A typical fall day in Heroica Matamoros reaches about 29°C and drops to 21°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Heroica Matamoros
Once humidity and wind are folded in, fall brings about 39 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Heroica Matamoros weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 21° / 13° | 32 | 5.7 | 10.6 | 7.1 |
| Feb | 23° / 14° | 27 | 5.3 | 11.1 | 7.5 |
| Mar | 26° / 17° | 38 | 5.7 | 11.8 | 7.4 |
| Apr | 28° / 20° | 47 | 5.9 | 12.6 | 6.5 |
| May | 31° / 23° | 45 | 7 | 13.2 | 5.0 |
| Jun | 33° / 25° | 58 | 10.3 | 13.6 | 3.8 |
| Jul | 33° / 26° | 64 | 8.8 | 13.5 | 3.5 |
| Aug | 34° / 26° | 52 | 10.4 | 12.9 | 3.2 |
| Sep | 32° / 24° | 108 | 15.6 | 12.2 | 3.7 |
| Oct | 29° / 21° | 72 | 9.4 | 11.4 | 5.8 |
| Nov | 25° / 17° | 43 | 7.6 | 10.7 | 7.2 |
| Dec | 22° / 13° | 34 | 5.9 | 10.4 | 7.3 |
Cloud cover in Fall
The sky is clear or mostly clear about 42% of the time across fall.
Chance of precipitation in Fall
Heroica Matamoros gets around 223 mm of rain over 33 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 15 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 30 min in early September to 10 h 30 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.3 kWh/m².
Hazard calendar for Heroica Matamoros
In fall, Heroica Matamoros overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Heroica Matamoros sits in the Atlantic hurricane belt; the season peaks August–October.
Is fall a good time to visit Heroica Matamoros?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Heroica Matamoros for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Heroica Matamoros in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Heroica Matamoros sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 33 days see rain.
Sea temperature near Heroica Matamoros in Fall
The nearest coast averages about 27°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 38 km away) is warmest in September at about 29°C and coldest in February near 19°C.
It's comfortable for a long swim from Mar 18 to Jan 2 — about 9.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19 | 19 | 20 | 22 | 25 | 28 | 28 | 29 | 29 | 27 | 24 | 21 |
| Comfort | Cool | Cool | Cool | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 19 | Cool |
| Feb | 19 | Cool |
| Mar | 20 | Cool |
| Apr | 22 | Refreshing |
| May | 25 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 27 | Warm |
| Nov | 24 | Warm |
| Dec | 21 | Refreshing |
UV index in Heroica Matamoros in Fall
Clear-sky midday UV across fall averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Heroica Matamoros peaks around June 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 5 | 7 | 8 | 11 | 9 | 12 | 11 | 11 | 10 | 8 | 6 | 5 |
| Level | Moderate | High | Very high | Extreme | Very high | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | Moderate |
| Feb | 7 | High |
| Mar | 8 | Very high |
| Apr | 11 | Extreme |
| May | 9 | Very high |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Air quality in Heroica Matamoros in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Heroica Matamoros is worst in July — around 25 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (October, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 9 | 11 | 13 | 19 | 20 | 25 | 18 | 13 | 7 | 7 | 9 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 11 | Good |
| Apr | 13 | Moderate |
| May | 19 | Moderate |
| Jun | 20 | Moderate |
| Jul | 25 | Moderate |
| Aug | 18 | Moderate |
| Sep | 13 | Moderate |
| Oct | 7 | Good |
| Nov | 7 | Good |
| Dec | 9 | Good |
Where is Heroica Matamoros?
Heroica Matamoros sits at 25.9°N, 97.5°W, 16 m above sea level, in Mexico. The nearest listed city is Brownsville, 3.0 km away.
Topography around Heroica Matamoros
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Heroica Matamoros.
Within 3 km, the terrain around Heroica Matamoros has only modest variations in elevation — a maximum elevation change of 13 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 28 m; within 80 km, only modest variations in elevation — a maximum elevation change of 81 m.
The land around Heroica Matamoros is covered by artificial surfaces (66%) and trees (20%) within 3 km, cropland (32%), grassland (21%) and artificial surfaces (20%) within 16 km, and cropland (38%) and water (34%) within 80 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
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 Heroica Matamoros (25.8797°, -97.5042°, elevation 16 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.