El Banco weather in September

In September, El Banco sees average daytime highs of 31°C and overnight lows near 25°C, with 247 mm of rain across 27.4 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is El Banco's 11th-clearest and 6th-windiest month. For the whole year in context, see El Banco's year-round climate.

Daytime high
31°
10th warmest
Overnight low
25°
2nd coldest
Rainfall
247 mm
27.4 wet days
Daylight
12 hours
5:49 AM – 5:52 PM
Cloud cover
90%
11th clearest
Wind
4 km/h
6th windiest
Solar energy
4.68 kWh/m²
Travel score
2.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in El Banco reaches about 31°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13225
23225
33225
43225
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263125
273125
283125
293125
303125

How September really feels in El Banco

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
30 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

El Banco weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 25°4411.911.53.6
Feb34° / 26°469.411.73.2
Mar34° / 26°11516.411.92.8
Apr32° / 26°22324.412.22.4
May32° / 26°30927.612.42.4
Jun32° / 26°19424.312.52.5
Jul32° / 25°16422.312.52.7
Aug32° / 25°20424.412.32.6
Sep31° / 25°24727.412.12.4
Oct31° / 25°30629.511.82.3
Nov31° / 25°24727.111.62.5
Dec32° / 25°12219.911.53.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5694
6694
7694
8694
9595
10595
11595
12595
13595
14595
15595
16496
17496
18496
19496
20595
21595
22595
23595
24595
25595
26595
27595
28595
29595
30595

Chance of precipitation in September

Any precipitation

El Banco gets around 247 mm of rain over 27.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 91% and peaks near 93% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
187
287
387
488
588
689
789
889
990
1090
1190
1290
1391
1491
1591
1692
1792
1892
1993
2093
2193
2293
2393
2493
2593
2693
2793
2893
2993
3093

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the miserable band about 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1199
2199
3298
4298
5298
6298
7298
8298
9298
10298
11298
12298
13397
14397
15397
16397
17397
18397
19496
20496
21496
22496
23595
24595
25595
26595
27595
28595
29595
30595

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 5:50 AM to 5:47 AM, and sunset from 6:01 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:506:01
212.25:506:00
312.25:506:00
412.15:505:59
512.15:505:58
612.15:505:58
712.15:505:57
812.15:505:57
912.15:505:56
1012.15:495:55
1112.15:495:55
1212.15:495:54
1312.15:495:54
1412.15:495:53
1512.15:495:52
1612.05:495:52
1712.05:495:51
1812.05:495:50
1912.05:485:50
2012.05:485:49
2112.05:485:49
2212.05:485:48
2312.05:485:47
2412.05:485:47
2512.05:485:46
2612.05:485:45
2712.05:485:45
2811.95:475:44
2911.95:475:44
3011.95:475:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.68 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 5.91 kWh/m² in February across the year — September's 4.68 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in September

Is September a good time to visit El Banco?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.4
Sightseeing
9th-best month of the year
3.7
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in El Banco.

What to pack for El Banco in September

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

In September, El Banco sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in El Banco in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks 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 El Banco peaks around February 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highFeb 22UV 13Dec 13UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in El Banco in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in El Banco 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodMar 1744 µg/m³Dec 1211 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb26Moderate
Mar47Poor
Apr27Moderate
May22Moderate
Jun21Moderate
Jul21Moderate
Aug17Moderate
Sep13Moderate
Oct13Moderate
Nov12Good
Dec11Good
Location & terrain

Where is El Banco?

El Banco sits at 9.0°N, 74.0°W, 34 m above sea level, in Colombia. The nearest listed city is Guamal, 31 km away.

Topography around El Banco

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

Within 3 km, the terrain around El Banco has only modest variations in elevation — a maximum elevation change of 28 m around an average of 27 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 226 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,648 m.

The land around El Banco is covered by grassland (36%) and wetland (22%) within 3 km, grassland (45%) and wetland (22%) within 16 km, and grassland (49%) and trees (36%) within 80 km.

3 km
28 m
16 km
226 m
80 km
2,648 m
treesgrasslandartificial surfaceswaterwetland
September weather nearby: Guamal 31 km · Chimichagua 34 km · Pailitas 39 km · Curumaní 52 km · Pinillos 55 km · Astrea 55 km · Mompós 56 km · Chiriguaná 57 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
Roman Catholic 64%Protestant 17%none 14%atheist 1%

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 El Banco (9.0011°, -73.9758°, elevation 34 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).