Guamal in Fall

In fall (September, October and November), Guamal sees average daytime highs around 31°C and overnight lows near 24°C, with 878 mm of rain over about 84 wet days across the season. It is the coldest season of the year and the wettest season of the year.

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 Guamal's 2nd-best season to visit on our travel score. For the whole year in context, see Guamal's year-round climate.

Avg daytime high: 31°C; coldest season of the year
Avg overnight low: 24°C
Rainfall: 878 mm; 84 wet days
Avg wind: 4 km/h
Travel score: 2.3; 2nd-best season
Months: Sep · Oct · Nov

← Summer Guamal year-round climate Winter →

Spring Summer Fall Winter

Temperature in Guamal in Fall

Average highAverage lowShaded bands: 10–90% of days

Across fall, daytime highs hold fairly steady around 31°C.

A typical fall day in Guamal reaches about 31°C and drops to 24°C overnight. The warmest of the three months is September, the coolest October.

How fall really feels in Guamal

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.

Days feeling ≥ 32°C

91 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Guamal 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	34° / 25°	33	7.4	11.5	3.5
Feb	35° / 26°	47	8.2	11.7	2.8
Mar	34° / 26°	117	16.6	11.9	2.4
Apr	33° / 25°	270	25.5	12.2	2.1
May	32° / 25°	383	29	12.4	2.1
Jun	32° / 25°	295	26.2	12.5	2.2
Jul	33° / 25°	238	25	12.5	2.3
Aug	32° / 25°	277	26	12.3	2.2
Sep	32° / 25°	316	28.2	12.1	2.2
Oct	31° / 24°	324	29.2	11.8	2.3
Nov	31° / 24°	238	26.2	11.6	2.5
Dec	32° / 25°	103	16.9	11.5	3.2

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time across fall.

Chance of precipitation in Fall

Any precipitation

Guamal gets around 878 mm of rain over 84 wet days across fall. The line is the day-by-day chance of measurable precipitation.

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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 4 km/h across fall.

Sunrise & sunset in Fall

DaylightNight

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

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 4.6 kWh/m².

Planning a trip in fall

Is fall a good time to visit Guamal?

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.

2.3

Sightseeing

2nd-best month of the year

3.7

Beach & pool

4th-best month of the year

fall is a weaker month for outdoor sightseeing in Guamal.

What to pack for Guamal in Fall

From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In fall, Guamal sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 84 days see rain.

light clothesrain gearsun protection

UV index in Guamal in Fall

LowModerateHighVery highExtreme

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 Guamal peaks around March 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (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	13	13	12	12	13	12	12	13	12	10	9
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	13	Extreme
Mar	13	Extreme
Apr	12	Extreme
May	12	Extreme
Jun	13	Extreme
Jul	12	Extreme
Aug	12	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	10	Very high
Dec	9	Very high

Air quality in Guamal in Fall

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.

Air quality in Guamal is worst in March — around 47 µg/m³ PM2.5 (poor), about 4.2× the cleanest month (December, 11 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	26	47	27	22	21	21	17	13	13	12	11
Level	Moderate	Moderate	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good

	PM2.5 (µg/m³)	Level
Jan	14	Moderate
Feb	26	Moderate
Mar	47	Poor
Apr	27	Moderate
May	22	Moderate
Jun	21	Moderate
Jul	21	Moderate
Aug	17	Moderate
Sep	13	Moderate
Oct	13	Moderate
Nov	12	Good
Dec	11	Good

Location & terrain

Where is Guamal?

Guamal sits at 9.1°N, 74.2°W, 28 m above sea level, in Colombia. The nearest listed city is Mompós, 25 km away.

Topography around Guamal

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Guamal.

Within 3 km, the terrain around Guamal has only modest variations in elevation — a maximum elevation change of 15 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 40 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,347 m.

The land around Guamal is covered by grassland (67%) and trees (22%) within 3 km, grassland (65%) within 16 km, and grassland (58%) and trees (22%) within 80 km.

3 km

15 m

grassland 67%

16 km

40 m

grassland 65%

80 km

1,347 m

grassland 58%

treesgrasslandartificial surfaceswaterwetland

← Summer Guamal year-round climate Winter →

Fall weather nearby: Mompós 25 km · El Banco 31 km · Pinillos 37 km · Chimichagua 47 km · Astrea 48 km · Magangué 59 km · Tiquisio 65 km · Sucre 66 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 Guamal (9.1433°, -74.2238°, elevation 28 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.