Acayucan in Summer
In summer (June, July and August), Acayucan sees average daytime highs around 32°C and overnight lows near 24°C, with 664 mm of rain over about 73 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 34°C in early June to 32°C by late August. The sky is clear or mostly clear about 15% of the time across summer, and the air most often feels oppressive.
Summer is Acayucan's weakest season of the year to visit on our travel score. For the whole year in context, see Acayucan's year-round climate.
- Avg daytime high
- 32°C
- 2nd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 664 mm
- 73 wet days
- Avg wind
- 6 km/h
- Travel score
- 2.5
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Acayucan in Summer
Over the season highs ease from about 34°C in early June to 32°C by late August.
A typical summer day in Acayucan reaches about 32°C and drops to 24°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Acayucan
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Acayucan 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 | 26° / 18° | 43 | 7.9 | 11 | 7.0 |
| Feb | 28° / 19° | 20 | 4.5 | 11.4 | 6.7 |
| Mar | 31° / 21° | 16 | 3.9 | 11.9 | 5.2 |
| Apr | 34° / 23° | 20 | 4.2 | 12.4 | 3.7 |
| May | 35° / 24° | 61 | 9.5 | 12.8 | 2.8 |
| Jun | 33° / 24° | 199 | 22 | 13.1 | 2.4 |
| Jul | 32° / 23° | 220 | 24.8 | 13 | 2.6 |
| Aug | 32° / 23° | 246 | 25.8 | 12.6 | 2.6 |
| Sep | 31° / 23° | 275 | 25.2 | 12.1 | 2.8 |
| Oct | 30° / 22° | 188 | 19.5 | 11.6 | 4.0 |
| Nov | 28° / 20° | 88 | 12.4 | 11.2 | 5.8 |
| Dec | 27° / 19° | 36 | 8.2 | 10.9 | 6.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 15% of the time across summer.
Chance of precipitation in Summer
Acayucan gets around 664 mm of rain over 73 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 hours 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 5.5 kWh/m².
Hazard calendar for Acayucan
In summer, Acayucan overlaps its atlantic hurricane and monsoon season. The full year is below, with each hazard's peak months called out.
Acayucan sits in the Atlantic hurricane belt; the season peaks August–October.
Acayucan's monsoon runs June–October, when most of the year's rain falls.
Is summer a good time to visit Acayucan?
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 Acayucan.
What to pack for Acayucan in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Acayucan sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 73 days see rain.
Sea temperature near Acayucan in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 56 km away) is warmest in September at about 29°C and coldest in February near 24°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 24 | 25 | 26 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 25 |
| Comfort | Warm | Refreshing | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 24 | Refreshing |
| Mar | 25 | Warm |
| Apr | 26 | Warm |
| May | 28 | Warm |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Tropical |
| Nov | 27 | Warm |
| Dec | 25 | Warm |
UV index in Acayucan in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Acayucan peaks around August 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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) | 7 | 10 | 12 | 13 | 10 | 12 | 11 | 13 | 11 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | Very high |
| Feb | 10 | Extreme |
| Mar | 12 | Extreme |
| Apr | 13 | Extreme |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Acayucan 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 Acayucan is worst in May — around 41 µg/m³ PM2.5 (poor), about 3.0× the cleanest month (January, 14 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) | 14 | 15 | 18 | 27 | 41 | 30 | 34 | 26 | 23 | 16 | 15 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 15 | Moderate |
| Mar | 18 | Moderate |
| Apr | 27 | Moderate |
| May | 41 | Poor |
| Jun | 30 | Moderate |
| Jul | 34 | Moderate |
| Aug | 26 | Moderate |
| Sep | 23 | Moderate |
| Oct | 16 | Moderate |
| Nov | 15 | Moderate |
| Dec | 15 | Moderate |
Where is Acayucan?
Acayucan sits at 17.9°N, 94.9°W, 102 m above sea level, in Mexico. The nearest listed city is Jáltipan de Morelos, 21 km away.
Topography around Acayucan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Acayucan.
Within 3 km, the terrain around Acayucan has only modest variations in elevation — a maximum elevation change of 59 m around an average of 77 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 183 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,658 m.
The land around Acayucan is covered by trees (35%), grassland (35%) and artificial surfaces (30%) within 3 km, grassland (59%) and trees (36%) within 16 km, and grassland (51%) and trees (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 Acayucan (17.9498°, -94.9139°, elevation 102 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.