Atotonilco el Alto in Fall
In fall (September, October and November), Atotonilco el Alto sees average daytime highs around 27°C and overnight lows near 13°C, with 210 mm of rain over about 29 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 38% of the time across fall, and the air most often feels dry.
Fall is Atotonilco el Alto's 2nd-best season to visit on our travel score. For the whole year in context, see Atotonilco el Alto's year-round climate.
- Avg daytime high
- 27°C
- 3rd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 210 mm
- 29 wet days
- Avg wind
- 6 km/h
- Travel score
- 6.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Atotonilco el Alto in Fall
Across fall, daytime highs hold fairly steady around 27°C.
A typical fall day in Atotonilco el Alto reaches about 27°C and drops to 13°C overnight. The warmest of the three months is October, the coolest November.
Atotonilco el Alto 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 | 24° / 8° | 14 | 1.8 | 10.9 | 8.7 |
| Feb | 26° / 10° | 9 | 1.3 | 11.3 | 8.6 |
| Mar | 28° / 11° | 7 | 0.9 | 11.9 | 7.8 |
| Apr | 30° / 13° | 4 | 0.9 | 12.5 | 6.1 |
| May | 32° / 15° | 26 | 5.1 | 13 | 4.9 |
| Jun | 30° / 17° | 145 | 18.3 | 13.2 | 4.1 |
| Jul | 27° / 16° | 203 | 24.4 | 13.1 | 4.4 |
| Aug | 27° / 16° | 176 | 22.4 | 12.7 | 4.6 |
| Sep | 27° / 15° | 150 | 18.9 | 12.1 | 5.0 |
| Oct | 27° / 14° | 49 | 8.4 | 11.5 | 6.8 |
| Nov | 26° / 11° | 11 | 2.2 | 11 | 8.4 |
| Dec | 24° / 9° | 5 | 1 | 10.8 | 8.8 |
Cloud cover in Fall
The sky is clear or mostly clear about 38% of the time across fall.
Chance of precipitation in Fall
Atotonilco el Alto gets around 210 mm of rain over 29 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 5.3 kWh/m².
Hazard calendar for Atotonilco el Alto
In fall, Atotonilco el Alto overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Atotonilco el Alto's monsoon runs June–September, when most of the year's rain falls.
Is fall a good time to visit Atotonilco el Alto?
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 Atotonilco el Alto for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Atotonilco el Alto in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Atotonilco el Alto sees daytime highs around 27°C and nights near 13°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.
UV index in Atotonilco el Alto 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 Atotonilco el Alto peaks around May 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (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) | 8 | 11 | 13 | 13 | 14 | 14 | 12 | 13 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 14 | Extreme |
| Jun | 14 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in Atotonilco el Alto 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 Atotonilco el Alto is worst in May — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 15 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) | 22 | 20 | 21 | 31 | 32 | 17 | 15 | 16 | 18 | 18 | 20 | 25 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 22 | Moderate |
| Feb | 20 | Moderate |
| Mar | 21 | Moderate |
| Apr | 31 | Moderate |
| May | 32 | Moderate |
| Jun | 17 | Moderate |
| Jul | 15 | Moderate |
| Aug | 16 | Moderate |
| Sep | 18 | Moderate |
| Oct | 18 | Moderate |
| Nov | 20 | Moderate |
| Dec | 25 | Moderate |
Where is Atotonilco el Alto?
Atotonilco el Alto sits at 20.6°N, 102.5°W, 1,604 m above sea level, in Mexico. The nearest listed city is Arandas, 24 km away.
Topography around Atotonilco el Alto
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Atotonilco el Alto.
Within 3 km, the terrain around Atotonilco el Alto has significant variations in elevation — a maximum elevation change of 378 m around an average of 1,718 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 575 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,730 m.
The land around Atotonilco el Alto is covered by trees (41%) within 3 km, cropland (43%) and trees (31%) within 16 km, and cropland (37%) and grassland (20%) 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 Atotonilco el Alto (20.5508°, -102.5082°, elevation 1,604 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.