Yajalón in Fall
In fall (September, October and November), Yajalón sees average daytime highs around 27°C and overnight lows near 18°C, with 763 mm of rain over about 68 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs ease from about 28°C in early September to 25°C by late November. The sky is clear or mostly clear about 13% of the time across fall, and the air most often feels muggy.
Fall is Yajalón's 3rd-best season to visit on our travel score. For the whole year in context, see Yajalón's year-round climate.
- Avg daytime high
- 27°C
- 3rd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 763 mm
- 68 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Yajalón in Fall
Over the season highs ease from about 28°C in early September to 25°C by late November.
A typical fall day in Yajalón reaches about 27°C and drops to 18°C overnight. The warmest of the three months is September, the coolest November.
Yajalón 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° / 14° | 150 | 13.8 | 11.1 | 6.5 |
| Feb | 26° / 15° | 96 | 10.1 | 11.4 | 6.8 |
| Mar | 28° / 16° | 83 | 9.3 | 11.9 | 6.6 |
| Apr | 30° / 18° | 95 | 10.5 | 12.4 | 5.2 |
| May | 30° / 19° | 156 | 16.9 | 12.8 | 4.1 |
| Jun | 29° / 20° | 292 | 24.2 | 13 | 3.5 |
| Jul | 29° / 19° | 182 | 20.9 | 12.9 | 4.0 |
| Aug | 29° / 19° | 242 | 24.5 | 12.6 | 3.6 |
| Sep | 28° / 19° | 306 | 27.6 | 12.1 | 3.4 |
| Oct | 27° / 19° | 263 | 23.7 | 11.6 | 4.4 |
| Nov | 25° / 17° | 194 | 16.6 | 11.2 | 5.7 |
| Dec | 24° / 15° | 137 | 13.8 | 11 | 6.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 13% of the time across fall.
Chance of precipitation in Fall
Yajalón gets around 763 mm of rain over 68 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 4 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 18 min in early September to 11 h 06 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 4.6 kWh/m².
Is fall a good time to visit Yajalón?
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 Yajalón for sightseeing.
What to pack for Yajalón in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Yajalón sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 68 days see rain.
UV index in Yajalón in Fall
Clear-sky midday UV across fall averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Yajalón peaks around April 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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) | 8 | 12 | 13 | 14 | 10 | 13 | 12 | 13 | 12 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 10 | Very high |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Yajalón 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 Yajalón is worst in April — around 80 µg/m³ PM2.5 (unhealthy), about 6.5× the cleanest month (December, 12 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) | 13 | 14 | 20 | 80 | 77 | 27 | 26 | 22 | 21 | 17 | 15 | 12 |
| Level | Moderate | Moderate | Moderate | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 14 | Moderate |
| Mar | 20 | Moderate |
| Apr | 80 | Unhealthy |
| May | 77 | Unhealthy |
| Jun | 27 | Moderate |
| Jul | 26 | Moderate |
| Aug | 22 | Moderate |
| Sep | 21 | Moderate |
| Oct | 17 | Moderate |
| Nov | 15 | Moderate |
| Dec | 12 | Moderate |
Where is Yajalón?
Yajalón sits at 17.2°N, 92.3°W, 797 m above sea level, in Mexico. The nearest listed city is Ocosingo, 39 km away.
Topography around Yajalón
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yajalón.
Within 3 km, the terrain around Yajalón has large variations in elevation — a maximum elevation change of 961 m around an average of 1,037 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,160 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,873 m.
The land around Yajalón is covered by trees (72%) and grassland (21%) within 3 km, trees (82%) within 16 km, and trees (68%) and grassland (30%) 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 Yajalón (17.1729°, -92.3339°, elevation 797 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.