Mocoa weather in September

In September, Mocoa sees average daytime highs of 20°C and overnight lows near 11°C, with 80 mm of rain across 17.9 wet days and about 12 hours of daylight. It is the 8th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 4% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Mocoa's 3rd-clearest and 1st-windiest month. For the whole year in context, see Mocoa's year-round climate.

Daytime high
20°
8th warmest
Overnight low
11°
3rd coldest
Rainfall
80 mm
17.9 wet days
Daylight
12 hours
6:01 AM – 6:01 PM
Cloud cover
80%
3rd clearest
Wind
4 km/h
1st windiest
Solar energy
5.59 kWh/m²
Travel score
4.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical September day in Mocoa reaches about 20°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 22°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11910
21910
31910
41911
51911
61911
71911
81911
91911
102011
112011
122011
132011
142011
152011
162011
172011
182011
192011
202011
212011
222011
232011
242011
252011
262011
272011
282011
292011
302011

Mocoa weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 12°16324.211.94.2
Feb20° / 12°18323.4123.9
Mar20° / 13°21828.3123.5
Apr20° / 13°21828.3123.4
May19° / 12°19127.812.13.4
Jun18° / 11°16625.212.13.6
Jul18° / 11°16424.712.13.7
Aug18° / 10°8819.2124.5
Sep20° / 11°8017.9124.8
Oct20° / 12°15525124.0
Nov21° / 13°21728.311.93.5
Dec20° / 13°19426.711.93.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11882
21882
31882
41882
51882
61981
71882
81882
91882
101882
111783
121783
131684
141684
151585
161585
171585
181486
191486
201387
211288
221288
231189
241189
251189
261189
271189
281189
291189
301189

Chance of precipitation in September

Any precipitation

Mocoa gets around 80 mm of rain over 17.9 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 59% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
154
254
354
455
555
655
755
855
955
1055
1156
1256
1356
1457
1557
1658
1759
1860
1961
2061
2162
2263
2364
2464
2565
2666
2767
2868
2968
3069

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1919
2919
3919
4919
5919
6919
7919
8919
99010
109010
118911
128911
138812
148812
158713
168614
178515
188416
198317
208218
218119
227921
237822
247723
257525
267426
277327
287129
297030
306832

Wind in September

Winds average 4 km/h in September, the windiest month of the year.

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 hours at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over September. Sunrise moves from 6:06 AM to 5:56 AM, and sunset from 6:07 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:066:07
212.06:056:07
312.06:056:06
412.06:056:06
512.06:046:05
612.06:046:05
712.06:046:05
812.06:036:04
912.06:036:04
1012.06:036:04
1112.06:026:03
1212.06:026:03
1312.06:026:02
1412.06:016:02
1512.06:016:02
1612.06:016:01
1712.06:006:01
1812.06:006:00
1912.06:006:00
2012.05:596:00
2112.05:595:59
2212.05:595:59
2312.05:585:58
2412.05:585:58
2512.05:585:58
2612.05:575:57
2712.05:575:57
2812.05:575:56
2912.05:565:56
3012.05:565:56

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.59 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.99 kWh/m² to a high of 5.59 kWh/m² in September across the year — September's 5.59 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.5Bright
Planning a trip in September

Is September a good time to visit Mocoa?

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

4.8
Sightseeing
1st-best month of the year
2.4
Beach & pool
1st-best month of the year

September is a reasonable time to visit Mocoa for sightseeing.

What to pack for Mocoa in September

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

In September, Mocoa sees daytime highs around 20°C and nights near 11°C. Pack rain gear. Worth having: sun protection. About 18 days see rain.

rain gearsun protection

UV index in Mocoa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mocoa peaks around February 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 12 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 16UV 16Aug 12UV 12
UV index (midday)Level
Jan15Extreme
Feb17Extreme
Mar16Extreme
Apr14Extreme
May15Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep15Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Mocoa 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 Mocoa is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1017 µg/m³Jul 118 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb17Moderate
Mar17Moderate
Apr14Moderate
May10Good
Jun8Good
Jul8Good
Aug10Good
Sep12Good
Oct11Good
Nov12Good
Dec12Good
Location & terrain

Where is Mocoa?

Mocoa sits at 1.2°N, 76.7°W, 612 m above sea level, in Colombia. The nearest listed city is Orito, 59 km away.

Topography around Mocoa

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

Within 3 km, the terrain around Mocoa has significant variations in elevation — a maximum elevation change of 599 m around an average of 695 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,218 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,980 m.

The land around Mocoa is covered by trees (71%) within 3 km, trees (92%) within 16 km, and trees (87%) within 80 km.

3 km
599 m
16 km
3,218 m
80 km
3,980 m
treesgrasslandartificial surfacesbare terrainwater
September weather nearby: Orito 59 km · Buesaco 62 km · Pasto 70 km · La Unión 73 km · San Lorenzo 74 km · Puerto Asís 74 km · San Agustin 91 km · Isnos 98 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 Mocoa (1.1528°, -76.6521°, elevation 612 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).