Acacías weather in September

In September, Acacías sees average daytime highs of 27°C and overnight lows near 18°C, with 39 mm of rain across 11.9 wet days and about 12 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 8% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Acacías's 4th-clearest and 5th-windiest month. For the whole year in context, see Acacías's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
18°
5th coldest
Rainfall
39 mm
11.9 wet days
Daylight
12 hours
5:49 AM – 5:50 PM
Cloud cover
73%
4th clearest
Wind
4 km/h
5th windiest
Solar energy
5.77 kWh/m²
Travel score
5.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical September day in Acacías reaches about 27°C in the afternoon and slips back to 18°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12717
22717
32717
42717
52717
62717
72717
82718
92718
102718
112718
122718
132718
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718

Acacías weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 17°568.411.86.6
Feb28° / 18°648.311.96.3
Mar27° / 18°14013.7125.6
Apr26° / 18°21619.412.14.7
May26° / 18°16920.412.24.8
Jun25° / 18°8917.912.25.2
Jul25° / 17°8116.812.25.5
Aug26° / 17°4012.212.16.0
Sep27° / 18°3911.9125.9
Oct27° / 18°15514.511.95.5
Nov27° / 18°2281711.85.2
Dec27° / 17°901111.86.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22872
32872
42872
52872
62872
72872
82872
92773
102773
112575
122575
132476
142476
152476
162476
172377
182476
192476
202476
212575
222476
232476
242476
252476
262476
272476
282377
292278
302179

Chance of precipitation in September

Any precipitation

Acacías gets around 39 mm of rain over 11.9 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
333
434
535
636
737
838
938
1039
1140
1240
1341
1441
1542
1642
1742
1842
1942
2042
2142
2242
2342
2441
2541
2641
2741
2841
2941
3041

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1747441
2747451
3746451
4746461
5745461
6744472
7743482
8742492
9741502
10740512
11839512
12837532
13836533
14836533
15835543
16834553
17834553
18833563
19833563
20832573
21932563
22932563
23931573
24931573
25931573
26931564
27930574
28930565
29930565
30929566

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 3 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
13calm
23calm
33calm
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 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 5:52 AM to 5:45 AM, and sunset from 5:57 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:525:57
212.15:525:57
312.15:525:56
412.15:525:56
512.15:525:55
612.15:515:55
712.15:515:54
812.15:515:54
912.05:515:53
1012.05:505:53
1112.05:505:52
1212.05:505:52
1312.05:495:51
1412.05:495:51
1512.05:495:50
1612.05:495:50
1712.05:485:50
1812.05:485:49
1912.05:485:49
2012.05:485:48
2112.05:475:48
2212.05:475:47
2312.05:475:47
2412.05:475:46
2512.05:465:46
2612.05:465:45
2712.05:465:45
2812.05:465:44
2912.05:455:44
3012.05:455:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.77 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 5.77 kWh/m² in September across the year — September's 5.77 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Is September a good time to visit Acacías?

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

5.9
Sightseeing
5th-best month of the year
6.0
Beach & pool
4th-best month of the year

September is a reasonable time to visit Acacías for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Acacías in September

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

In September, Acacías sees daytime highs around 27°C and nights near 18°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Acacías 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 Acacías peaks around February 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 16UV 14Dec 13UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar13Extreme
Apr11Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec10Extreme

Air quality in Acacías 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 Acacías is worst in March — around 33 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1932 µg/m³Jul 1817 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb23Moderate
Mar33Moderate
Apr27Moderate
May21Moderate
Jun19Moderate
Jul16Moderate
Aug18Moderate
Sep18Moderate
Oct19Moderate
Nov20Moderate
Dec17Moderate
Location & terrain

Where is Acacías?

Acacías sits at 4.0°N, 73.8°W, 530 m above sea level, in Colombia. The nearest listed city is Villavicencio, 22 km away.

Topography around Acacías

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

Within 3 km, the terrain around Acacías has only modest variations in elevation — a maximum elevation change of 104 m around an average of 524 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,038 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,030 m.

The land around Acacías is covered by grassland (54%) and trees (29%) within 3 km, trees (58%) and grassland (38%) within 16 km, and trees (49%) and grassland (48%) within 80 km.

3 km
104 m
16 km
2,038 m
80 km
4,030 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Villavicencio 22 km · San Martín 33 km · Restrepo 37 km · Granada 49 km · Fusagasugá 78 km · Bogota 78 km · Sibaté 79 km · Kennedy 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 Acacías (3.987°, -73.758°, elevation 530 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).