San Antero in Fall
In fall (September, October and November), San Antero sees average daytime highs around 31°C and overnight lows near 25°C, with 670 mm of rain over about 86 wet days across the season. It is the coldest season of the year and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 3% of the time across fall, and the air most often feels miserable.
Fall is San Antero's 3rd-best season to visit on our travel score. San Antero has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see San Antero's year-round climate.
- Avg daytime high
- 31°C
- coldest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 670 mm
- 86 wet days
- Avg wind
- 7 km/h
- Travel score
- 2.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in San Antero in Fall
Across fall, daytime highs hold fairly steady around 31°C.
A typical fall day in San Antero reaches about 31°C and drops to 25°C overnight. The warmest of the three months is September, the coolest October.
How fall really feels in San Antero
Once humidity and wind are folded in, fall brings about 91 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.
San Antero 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 | 32° / 25° | 28 | 8 | 11.5 | 4.5 |
| Feb | 32° / 26° | 26 | 6.5 | 11.7 | 4.2 |
| Mar | 32° / 26° | 54 | 12.8 | 11.9 | 3.5 |
| Apr | 32° / 26° | 155 | 24.4 | 12.2 | 2.5 |
| May | 31° / 25° | 264 | 29.4 | 12.4 | 2.3 |
| Jun | 31° / 25° | 259 | 28.5 | 12.5 | 2.3 |
| Jul | 31° / 25° | 246 | 28.8 | 12.5 | 2.3 |
| Aug | 31° / 25° | 245 | 29 | 12.3 | 2.3 |
| Sep | 31° / 25° | 243 | 29.2 | 12.1 | 2.3 |
| Oct | 31° / 25° | 240 | 29.7 | 11.8 | 2.5 |
| Nov | 31° / 25° | 186 | 27.1 | 11.6 | 2.7 |
| Dec | 31° / 25° | 91 | 19.1 | 11.5 | 3.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 3% of the time across fall.
Chance of precipitation in Fall
San Antero gets around 670 mm of rain over 86 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 7 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 30 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 4.8 kWh/m².
Is fall a good time to visit San Antero?
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 San Antero.
What to pack for San Antero in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, San Antero sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 86 days see rain.
Sea temperature near San Antero in Fall
The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 31 km away) is warmest in July at about 30°C and coldest in March near 28°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) | 29 | 28 | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 28 | Tropical |
| Mar | 28 | Warm |
| Apr | 28 | Tropical |
| May | 29 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in San Antero 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 San Antero peaks around March 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 10 (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) | 11 | 12 | 13 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 10 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 10 | Very high |
Air quality in San Antero 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 San Antero is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 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) | 16 | 20 | 27 | 27 | 24 | 21 | 23 | 19 | 16 | 15 | 14 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 20 | Moderate |
| Mar | 27 | Moderate |
| Apr | 27 | Moderate |
| May | 24 | Moderate |
| Jun | 21 | Moderate |
| Jul | 23 | Moderate |
| Aug | 19 | Moderate |
| Sep | 16 | Moderate |
| Oct | 15 | Moderate |
| Nov | 14 | Moderate |
| Dec | 16 | Moderate |
Where is San Antero?
San Antero sits at 9.4°N, 75.8°W, 45 m above sea level, in Colombia. The nearest listed city is Lorica, 16 km away.
Topography around San Antero
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Antero.
Within 3 km, the terrain around San Antero has only modest variations in elevation — a maximum elevation change of 164 m around an average of 40 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 246 m; within 80 km, large variations in elevation — a maximum elevation change of 708 m.
The land around San Antero is covered by grassland (66%) and trees (27%) within 3 km, grassland (40%) and water (34%) within 16 km, and grassland (49%) and water (31%) within 80 km.
Colombia travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 120 / 240 V · 60 Hz
- Prices
- ≈ 38% of US
- price level, 2025
- GDP per capita
- $8,562
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 74%
- of population, 2024
- Homicide rate
- 24.9
- per 100k, 2023
- Road deaths
- 15.4
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 480
- 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 San Antero (9.3741°, -75.7589°, elevation 45 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.