San Luis de Sincé weather in September

In September, San Luis de Sincé sees average daytime highs of 31°C and overnight lows near 24°C, with 227 mm of rain across 27.8 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-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 San Luis de Sincé's 10th-clearest and 9th-windiest month. For the whole year in context, see San Luis de Sincé's year-round climate.

Daytime high
31°
10th warmest
Overnight low
24°
5th coldest
Rainfall
227 mm
27.8 wet days
Daylight
12 h 06 min
5:53 AM – 5:56 PM
Cloud cover
91%
10th clearest
Wind
6 km/h
9th windiest
Solar energy
4.75 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 San Luis de Sincé reaches about 31°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 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)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124

How September really feels in San Luis de Sincé

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
heat index over the day's high
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.

San Luis de Sincé 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°266.611.53.8
Feb35° / 25°327.511.72.8
Mar34° / 25°7714.711.92.5
Apr33° / 24°18525.112.22.2
May32° / 24°2792912.42.2
Jun32° / 24°22626.512.52.4
Jul32° / 24°1982512.52.5
Aug32° / 24°22026.612.32.4
Sep31° / 24°22727.812.12.4
Oct31° / 23°23729.111.82.5
Nov31° / 23°17626.311.62.7
Dec32° / 23°8215.611.53.6

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 3% of September, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1595
2595
3595
4496
5496
6496
7496
8496
9496
10496
11496
12496
13496
14496
15496
16496
17496
18496
19496
20496
21496
22496
23496
24496
25496
26496
27496
28496
29496
30496

Chance of precipitation in September

Any precipitation

San Luis de Sincé gets around 227 mm of rain over 27.8 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 93% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
190
290
391
491
591
691
791
892
992
1092
1193
1293
1393
1493
1593
1694
1794
1894
1994
2094
2194
2294
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 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
12872
22872
32971
42971
52971
62971
72971
83070
93070
103169
113169
123169
133169
143268
153268
163367
173367
183466
193565
203565
213664
223664
233763
243763
253763
263763
273862
283862
293862
303862

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 5:55 AM to 5:52 AM, and sunset from 6:06 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:556:06
212.25:556:05
312.25:556:04
412.25:556:04
512.15:556:03
612.15:546:03
712.15:546:02
812.15:546:01
912.15:546:01
1012.15:546:00
1112.15:546:00
1212.15:545:59
1312.15:545:58
1412.15:545:58
1512.15:545:57
1612.15:535:56
1712.05:535:56
1812.05:535:55
1912.05:535:55
2012.05:535:54
2112.05:535:53
2212.05:535:53
2312.05:535:52
2412.05:535:51
2512.05:525:51
2612.05:525:50
2712.05:525:50
2811.95:525:49
2911.95:525:48
3011.95:525:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.75 kWh/m².

For context, solar energy here swings from a low near 4.35 kWh/m² to a high of 5.71 kWh/m² in February across the year — September's 4.75 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Is September a good time to visit San Luis de Sincé?

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

2.4
Sightseeing
8th-best month of the year
3.6
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in San Luis de Sincé.

What to pack for San Luis de Sincé in September

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

In September, San Luis de Sincé sees daytime highs around 31°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

Sea temperature near San Luis de Sincé in September

The nearest coast averages about 30°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 67 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.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in San Luis de Sincé in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (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 Luis de Sincé peaks around March 15 at about 13 (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 highMar 15UV 13Dec 13UV 10
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec10Very high

Air quality in San Luis de Sincé 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 San Luis de Sincé is worst in March — around 34 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (November, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1933 µg/m³Nov 1812 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb21Moderate
Mar34Moderate
Apr27Moderate
May22Moderate
Jun20Moderate
Jul20Moderate
Aug17Moderate
Sep14Moderate
Oct13Moderate
Nov12Moderate
Dec13Moderate
Location & terrain

Where is San Luis de Sincé?

San Luis de Sincé sits at 9.2°N, 75.1°W, 141 m above sea level, in Colombia. The nearest listed city is Galeras, 14 km away.

Topography around San Luis de Sincé

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Luis de Sincé.

Within 3 km, the terrain around San Luis de Sincé has only modest variations in elevation — a maximum elevation change of 60 m around an average of 122 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 158 m; within 80 km, large variations in elevation — a maximum elevation change of 810 m.

The land around San Luis de Sincé is covered by grassland (84%) within 3 km, grassland (93%) within 16 km, and grassland (63%) within 80 km.

3 km
60 m
16 km
158 m
80 km
810 m
treesgrasslandartificial surfaceswaterwetland
September weather nearby: Galeras 14 km · Corozal 18 km · Sampués 27 km · Sincelejo 28 km · Chinú 32 km · San Benito Abad 37 km · Tolú Viejo 39 km · Magangué 43 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 San Luis de Sincé (9.2439°, -75.1467°, elevation 141 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).