Fundación weather in September

In September, Fundación sees average daytime highs of 33°C and overnight lows near 24°C, with 131 mm of rain across 19 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 2% 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 Fundación's 10th-clearest and 3rd-windiest month. For the whole year in context, see Fundación's year-round climate.

Daytime high
33°
9th warmest
Overnight low
24°
6th coldest
Rainfall
131 mm
19 wet days
Daylight
12 h 06 min
5:49 AM – 5:53 PM
Cloud cover
88%
10th clearest
Wind
5 km/h
3rd windiest
Solar energy
4.97 kWh/m²
Travel score
2.5
out of 10

Fundación is human settlement in Fundación, Colombia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical September day in Fundación reaches about 33°C in the afternoon and slips back to 24°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 36°C. Set against its neighbours, September runs about 1°C cooler than August and about 1°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13424
23424
33424
43424
53424
63424
73424
83424
93424
103424
113324
123324
133324
143324
153324
163324
173324
183324
193324
203324
213324
223324
233324
243324
253324
263324
273324
283224
293224
303224

How September really feels in Fundación

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.

Fundación weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan35° / 23°71.511.53.4
Feb36° / 24°71.611.72.6
Mar36° / 25°224.811.92.3
Apr35° / 25°7313.812.22.2
May34° / 25°16019.912.52.3
Jun33° / 25°8113.812.62.7
Jul35° / 25°508.312.62.6
Aug35° / 25°691212.32.4
Sep33° / 24°1311912.12.5
Oct32° / 24°24222.711.82.7
Nov32° / 23°17217.111.53.3
Dec33° / 23°345.811.43.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6892
7892
8892
9991
10991
11991
12991
13892
14991
15991
16991
17991
18991
19892
20892
21892
22892
23892
24892
25892
26892
27892
28892
29892
30892

Chance of precipitation in September

Any precipitation

Fundación gets around 131 mm of rain over 19 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 63% and peaks near 72% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
148
249
349
450
551
652
753
855
956
1057
1158
1260
1361
1462
1564
1665
1766
1867
1968
2069
2170
2271
2371
2471
2572
2672
2772
2872
2972
3072

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 (%)
14159
24159
34060
44060
54060
63961
73961
83961
93862
103862
113763
123664
133664
143565
153466
163367
173367
183268
193169
203070
212971
222872
232773
242674
252674
262575
272575
282575
292575
302575

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:49 AM, and sunset from 6:03 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:506:03
212.25:506:02
312.25:506:01
412.25:506:01
512.25:506:00
612.25:505:59
712.15:505:59
812.15:505:58
912.15:505:57
1012.15:505:57
1112.15:505:56
1212.15:505:55
1312.15:505:55
1412.15:495:54
1512.15:495:53
1612.15:495:53
1712.05:495:52
1812.05:495:51
1912.05:495:51
2012.05:495:50
2112.05:495:49
2212.05:495:49
2312.05:495:48
2412.05:495:47
2512.05:495:47
2612.05:495:46
2711.95:495:45
2811.95:495:45
2911.95:495:44
3011.95:495:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.97 kWh/m².

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 5.95 kWh/m² in March across the year — September's 4.97 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Hazard calendar for Fundación

In seasonPeak

In September, Fundación sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Fundación's rainy season runs September–November, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Fundación?

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

2.5
Sightseeing
8th-best month of the year
4.5
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Fundación.

What to pack for Fundación in September

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

In September, Fundación sees daytime highs around 33°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

Sea temperature near Fundación in September

The nearest coast averages about 29°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 45 km away) is warmest in September at about 29°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr27Warm
May28Warm
Jun29Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Fundación 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 Fundación peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 highApr 10UV 13Dec 12UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Fundación 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 Fundación is worst in March — around 51 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (December, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1748 µg/m³Dec 1114 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb26Moderate
Mar51Poor
Apr29Moderate
May25Moderate
Jun24Moderate
Jul24Moderate
Aug20Moderate
Sep17Moderate
Oct16Moderate
Nov14Moderate
Dec14Moderate
Location & terrain

Where is Fundación?

Fundación sits at 10.5°N, 74.2°W, 49 m above sea level, in Colombia. The nearest listed city is Aracataca, 8.0 km away.

Topography around Fundación

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

Within 3 km, the terrain around Fundación has only modest variations in elevation — a maximum elevation change of 47 m around an average of 51 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 603 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,612 m.

The land around Fundación is covered by trees (42%) and grassland (41%) within 3 km, grassland (56%) and trees (42%) within 16 km, and trees (42%) and grassland (40%) within 80 km.

3 km
47 m
16 km
603 m
80 km
5,612 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Aracataca 8.0 km · El Retén 14 km · Ariguaní 36 km · Pivijay 48 km · El Copey 48 km · Puebloviejo 54 km · Ciénaga 55 km · Ponedera 64 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 Fundación (10.5207°, -74.185°, elevation 49 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).