Tres Valles in Fall
In fall (September, October and November), Tres Valles sees average daytime highs around 30°C and overnight lows near 23°C, with 766 mm of rain over about 57 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 32°C in early September to 28°C by late November. The sky is clear or mostly clear about 21% of the time across fall, and the air most often feels oppressive.
Fall is Tres Valles's 2nd-best season to visit on our travel score. For the whole year in context, see Tres Valles's year-round climate.
- Avg daytime high
- 30°C
- 3rd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 766 mm
- 57 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.9
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Tres Valles in Fall
Over the season highs ease from about 32°C in early September to 28°C by late November.
A typical fall day in Tres Valles reaches about 30°C and drops to 23°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Tres Valles
Once humidity and wind are folded in, fall brings about 65 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Tres Valles 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 | 27° / 19° | 40 | 7.2 | 11 | 7.1 |
| Feb | 28° / 20° | 30 | 5.4 | 11.4 | 6.5 |
| Mar | 31° / 22° | 28 | 5 | 11.9 | 5.1 |
| Apr | 34° / 24° | 43 | 6 | 12.4 | 3.4 |
| May | 35° / 26° | 111 | 12.9 | 12.8 | 2.6 |
| Jun | 33° / 25° | 347 | 24.2 | 13.1 | 2.2 |
| Jul | 33° / 25° | 363 | 25.9 | 13 | 2.4 |
| Aug | 33° / 25° | 375 | 27.1 | 12.6 | 2.3 |
| Sep | 32° / 24° | 414 | 26.6 | 12.1 | 2.4 |
| Oct | 31° / 23° | 248 | 18.8 | 11.6 | 3.7 |
| Nov | 29° / 21° | 104 | 11.9 | 11.1 | 5.5 |
| Dec | 27° / 20° | 45 | 7.6 | 10.9 | 6.9 |
Cloud cover in Fall
The sky is clear or mostly clear about 21% of the time across fall.
Chance of precipitation in Fall
Tres Valles gets around 766 mm of rain over 57 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — 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 24 min in early September to 11 hours 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 4.3 kWh/m².
Hazard calendar for Tres Valles
In fall, Tres Valles overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Tres Valles's monsoon runs June–October, when most of the year's rain falls.
Is fall a good time to visit Tres Valles?
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 weaker month for outdoor sightseeing in Tres Valles.
What to pack for Tres Valles in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Tres Valles sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 57 days see rain.
UV index in Tres Valles in Fall
Clear-sky midday UV across fall averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tres Valles peaks around August 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 7 (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 | 10 | 12 | 8 | 12 | 11 | 13 | 11 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | Very high |
| Feb | 10 | Extreme |
| Mar | 10 | Extreme |
| Apr | 12 | Extreme |
| May | 8 | Very high |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Tres Valles 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 Tres Valles is worst in May — around 49 µg/m³ PM2.5 (poor), about 3.7× the cleanest month (January, 13 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 | 15 | 20 | 31 | 49 | 28 | 31 | 24 | 21 | 15 | 14 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 15 | Moderate |
| Mar | 20 | Moderate |
| Apr | 31 | Moderate |
| May | 49 | Poor |
| Jun | 28 | Moderate |
| Jul | 31 | Moderate |
| Aug | 24 | Moderate |
| Sep | 21 | Moderate |
| Oct | 15 | Moderate |
| Nov | 14 | Moderate |
| Dec | 15 | Moderate |
Where is Tres Valles?
Tres Valles sits at 18.2°N, 96.1°W, 56 m above sea level, in Mexico. The nearest listed city is Tuxtepec, 17 km away.
Topography around Tres Valles
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tres Valles.
Within 3 km, the terrain around Tres Valles has only modest variations in elevation — a maximum elevation change of 43 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 71 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,020 m.
The land around Tres Valles is covered by trees (44%) and grassland (25%) within 3 km, cropland (49%), grassland (24%) and trees (23%) within 16 km, and trees (46%) and grassland (29%) 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 Tres Valles (18.2391°, -96.1357°, elevation 56 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.