Yajalón in Summer
In summer (June, July and August), Yajalón sees average daytime highs around 29°C and overnight lows near 19°C, with 715 mm of rain over about 70 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 13% of the time across summer, and the air most often feels muggy.
Summer is Yajalón's weakest season of the year to visit on our travel score. For the whole year in context, see Yajalón's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 19°C
- Rainfall
- 715 mm
- 70 wet days
- Avg wind
- 5 km/h
- Travel score
- 3.7
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Yajalón in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Yajalón reaches about 29°C and drops to 19°C overnight. The warmest of the three months is June, the coolest July.
Yajalón weather by month
How the three summer months (June, July and August) 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 Summer
The sky is clear or mostly clear about 13% of the time across summer.
Chance of precipitation in Summer
Yajalón gets around 715 mm of rain over 70 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 54 min in early June to 12 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.8 kWh/m².
Is summer a good time to visit Yajalón?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Yajalón.
What to pack for Yajalón in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Yajalón sees daytime highs around 29°C and nights near 19°C. Pack light clothes, rain gear and sun protection. About 70 days see rain.
UV index in Yajalón in Summer
Clear-sky midday UV across summer averages around 13 (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 Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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.