San Mateo Atenco in Fall
In fall (September, October and November), San Mateo Atenco sees average daytime highs around 19°C and overnight lows near 7°C, with 359 mm of rain over about 44 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 19°C. The sky is clear or mostly clear about 22% of the time across fall, and the air most often feels dry.
Fall is San Mateo Atenco's 3rd-best season to visit on our travel score. For the whole year in context, see San Mateo Atenco's year-round climate.
- Avg daytime high
- 19°C
- 3rd-warmest season
- Avg overnight low
- 7°C
- Rainfall
- 359 mm
- 44 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.4
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in San Mateo Atenco in Fall
Across fall, daytime highs hold fairly steady around 19°C.
A typical fall day in San Mateo Atenco reaches about 19°C and drops to 7°C overnight. The warmest of the three months is September, the coolest November.
San Mateo Atenco 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 | 17° / 3° | 24 | 4.9 | 11 | 6.6 |
| Feb | 19° / 4° | 24 | 5.6 | 11.3 | 7.1 |
| Mar | 21° / 5° | 32 | 7.6 | 11.9 | 7.1 |
| Apr | 22° / 7° | 60 | 11.1 | 12.4 | 6.6 |
| May | 22° / 8° | 129 | 17 | 12.9 | 5.6 |
| Jun | 21° / 9° | 232 | 21.1 | 13.1 | 4.5 |
| Jul | 19° / 9° | 301 | 27.8 | 13 | 3.6 |
| Aug | 19° / 9° | 282 | 26.7 | 12.7 | 3.7 |
| Sep | 19° / 9° | 226 | 23.4 | 12.1 | 4.0 |
| Oct | 19° / 7° | 99 | 14.4 | 11.6 | 5.4 |
| Nov | 18° / 5° | 34 | 6.5 | 11.1 | 6.7 |
| Dec | 18° / 3° | 14 | 3.5 | 10.9 | 7.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 22% of the time across fall.
Chance of precipitation in Fall
San Mateo Atenco gets around 359 mm of rain over 44 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 6 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 24 min in early September to 10 h 54 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 5.1 kWh/m².
Hazard calendar for San Mateo Atenco
In fall, San Mateo Atenco overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
San Mateo Atenco's monsoon runs June–September, when most of the year's rain falls.
Is fall a good time to visit San Mateo Atenco?
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 San Mateo Atenco for sightseeing.
What to pack for San Mateo Atenco in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, San Mateo Atenco sees daytime highs around 19°C and nights near 7°C. Pack rain gear. Worth having: a warm layer and sun protection. About 44 days see rain.
UV index in San Mateo Atenco in Fall
Clear-sky midday UV across fall averages around 10 (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 Mateo Atenco peaks around March 23 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very high).
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) | 10 | 12 | 15 | 14 | 12 | 15 | 12 | 13 | 11 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 15 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in San Mateo Atenco 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 San Mateo Atenco is worst in December — around 79 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 67 | 62 | 55 | 52 | 57 | 59 | 69 | 65 | 70 | 66 | 77 | 79 |
| Level | Unhealthy | Unhealthy | Poor | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 67 | Unhealthy |
| Feb | 62 | Unhealthy |
| Mar | 55 | Poor |
| Apr | 52 | Poor |
| May | 57 | Unhealthy |
| Jun | 59 | Unhealthy |
| Jul | 69 | Unhealthy |
| Aug | 65 | Unhealthy |
| Sep | 70 | Unhealthy |
| Oct | 66 | Unhealthy |
| Nov | 77 | Unhealthy |
| Dec | 79 | Unhealthy |
Where is San Mateo Atenco?
San Mateo Atenco sits at 19.3°N, 99.5°W, 2,580 m above sea level, in Mexico. The nearest listed city is Lerma de Villada, 3.0 km away.
Topography around San Mateo Atenco
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Mateo Atenco.
Within 3 km, the terrain around San Mateo Atenco has only modest variations in elevation — a maximum elevation change of 21 m around an average of 2,575 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 769 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,739 m.
The land around San Mateo Atenco is covered by artificial surfaces (57%) and cropland (23%) within 3 km, cropland (37%) and artificial surfaces (30%) within 16 km, and trees (42%) and cropland (21%) 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 San Mateo Atenco (19.2676°, -99.5321°, elevation 2,580 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.