Montelíbano weather in September

In September, Montelíbano sees average daytime highs of 32°C and overnight lows near 24°C, with 183 mm of rain across 27.5 wet days and about 12 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 0% 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 Montelíbano's 9th-clearest and 6th-windiest month. For the whole year in context, see Montelíbano's year-round climate.

Daytime high
32°
10th warmest
Overnight low
24°
4th coldest
Rainfall
183 mm
27.5 wet days
Daylight
12 hours
5:55 AM – 5:57 PM
Cloud cover
91%
9th clearest
Wind
4 km/h
6th windiest
Solar energy
4.87 kWh/m²
Travel score
2.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Montelíbano reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°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)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224

How September really feels in Montelíbano

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
15 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.

Montelíbano weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°339.511.63.6
Feb35° / 25°388.511.72.6
Mar35° / 25°8916.711.92.2
Apr33° / 25°16925.312.22.1
May32° / 25°22428.712.42.2
Jun32° / 24°16325.212.52.4
Jul32° / 24°14924.712.42.5
Aug32° / 24°16126.312.32.4
Sep32° / 24°18327.5122.3
Oct31° / 24°20629.611.82.3
Nov31° / 24°17727.111.62.5
Dec32° / 24°9619.211.53.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 3% of September, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5595
6595
7496
8496
9496
10496
11496
12496
13496
14496
15496
16397
17397
18397
19397
20397
21397
22397
23397
24397
25397
26496
27496
28397
29397
30397

Chance of precipitation in September

Any precipitation

Montelíbano gets around 183 mm of rain over 27.5 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 92% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
188
289
389
489
590
690
791
891
992
1092
1192
1292
1392
1492
1592
1692
1792
1892
1992
2092
2192
2292
2392
2492
2593
2693
2793
2893
2994
3094

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 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
12080
22080
32080
42080
52080
61981
71981
81981
91981
101981
111981
121981
131981
141981
151981
161981
171981
182080
192080
202179
212179
222179
232278
242278
252278
262278
272278
282278
292278
302377

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 5:57 AM to 5:53 AM, and sunset from 6:06 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:576:06
212.15:576:05
312.15:576:05
412.15:566:04
512.15:566:04
612.15:566:03
712.15:566:03
812.15:566:02
912.15:566:01
1012.15:566:01
1112.15:556:00
1212.15:556:00
1312.15:555:59
1412.15:555:58
1512.15:555:58
1612.05:555:57
1712.05:555:57
1812.05:545:56
1912.05:545:56
2012.05:545:55
2112.05:545:54
2212.05:545:54
2312.05:545:53
2412.05:545:53
2512.05:535:52
2612.05:535:51
2712.05:535:51
2812.05:535:50
2911.95:535:50
3011.95:535:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.87 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 5.45 kWh/m² in March across the year — September's 4.87 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Is September a good time to visit Montelíbano?

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

2.3
Sightseeing
8th-best month of the year
3.6
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Montelíbano.

What to pack for Montelíbano in September

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

In September, Montelíbano sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Montelíbano 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 Montelíbano peaks around June 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highJun 12UV 12Dec 13UV 10
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Montelíbano 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 Montelíbano is worst in March — around 35 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (November, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1833 µg/m³Nov 1312 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb22Moderate
Mar35Moderate
Apr25Moderate
May19Moderate
Jun17Moderate
Jul17Moderate
Aug15Moderate
Sep13Moderate
Oct13Moderate
Nov12Moderate
Dec14Moderate
Location & terrain

Where is Montelíbano?

Montelíbano sits at 8.0°N, 75.4°W, 46 m above sea level, in Colombia. The nearest listed city is Caucasia, 25 km away.

Topography around Montelíbano

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

Within 3 km, the terrain around Montelíbano has only modest variations in elevation — a maximum elevation change of 30 m around an average of 44 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 99 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,812 m.

The land around Montelíbano is covered by grassland (57%) and trees (24%) within 3 km, grassland (72%) and trees (26%) within 16 km, and trees (49%) and grassland (46%) within 80 km.

3 km
30 m
16 km
99 m
80 km
2,812 m
treesgrasslandartificial surfacesbare terrainwaterwetland
September weather nearby: Caucasia 25 km · Ayapel 48 km · Planeta Rica 51 km · Nechí 72 km · Tierralta 74 km · El Bagre 79 km · Zaragoza 82 km · San Marcos 82 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 Montelíbano (7.9792°, -75.4202°, elevation 46 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).