Cumaribo weather in September

In September, Cumaribo sees average daytime highs of 30°C and overnight lows near 23°C, with 192 mm of rain across 26.7 wet days and about 12 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 3% of the time in September, and the air most often feels oppressive.

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 Cumaribo's 6th-clearest and 11th-windiest month. For the whole year in context, see Cumaribo's year-round climate.

Daytime high: 30°; 8th warmest
Overnight low: 23°; 4th coldest
Rainfall: 192 mm; 26.7 wet days
Daylight: 12 hours; 5:33 AM – 5:34 PM
Cloud cover: 81%; 6th clearest
Wind: 5 km/h; 11th windiest
Solar energy: 4.92 kWh/m²
Travel score: 2.9; out of 10

← August Cumaribo year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Cumaribo reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	22	22	22	22	22	22	22	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	23
9	30	23
10	30	23
11	30	23
12	30	23
13	30	23
14	30	23
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23

How September really feels in Cumaribo

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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cumaribo weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	32° / 23°	41	6.5	11.8	4.4
Feb	32° / 23°	59	8.5	11.9	3.8
Mar	31° / 23°	155	17.7	12	3.3
Apr	30° / 23°	283	26.6	12.1	2.8
May	29° / 23°	365	30	12.2	2.8
Jun	28° / 22°	342	29.2	12.3	3.0
Jul	28° / 22°	321	29.8	12.2	3.2
Aug	29° / 22°	234	28.1	12.1	3.1
Sep	30° / 23°	192	26.7	12	2.9
Oct	30° / 23°	209	28.3	11.9	2.8
Nov	30° / 23°	193	25.5	11.8	3.0
Dec	30° / 23°	105	16.3	11.7	4.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% 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 86%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	15	15	15	16	15	14	14	14	14	13	13	13	13	13	13	13	13	13	13	14	14	14	14	15	15	15	16	16	16	16
Cloudier (%)	85	85	85	84	85	86	86	86	86	87	87	87	87	87	87	87	87	87	87	86	86	86	86	85	85	85	84	84	84	84

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	15	85
4	16	84
5	15	85
6	14	86
7	14	86
8	14	86
9	14	86
10	13	87
11	13	87
12	13	87
13	13	87
14	13	87
15	13	87
16	13	87
17	13	87
18	13	87
19	13	87
20	14	86
21	14	86
22	14	86
23	14	86
24	15	85
25	15	85
26	15	85
27	16	84
28	16	84
29	16	84
30	16	84

Chance of precipitation in September

Any precipitation

Cumaribo gets around 192 mm of rain over 26.7 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 89% and peaks near 90% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	90	90	90	90	89	89	89	89	90	90	90	89	89	89	89	89	89	89	89	89	89	89	89	89	89	89	89	89	90	90

	Rain chance (%)
1	90
2	90
3	90
4	90
5	89
6	89
7	89
8	89
9	90
10	90
11	90
12	89
13	89
14	89
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	90
30	90

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Oppressive (%)	95	95	94	94	94	93	93	92	92	92	91	91	90	90	89	89	88	88	87	86	86	85	84	84	83	82	82	81	81	80
Miserable (%)	5	5	6	6	6	7	7	8	8	8	9	9	10	10	11	11	12	12	13	14	14	15	16	16	17	18	18	19	19	20

	Oppressive (%)	Miserable (%)
1	95	5
2	95	5
3	94	6
4	94	6
5	94	6
6	93	7
7	93	7
8	92	8
9	92	8
10	92	8
11	91	9
12	91	9
13	90	10
14	90	10
15	89	11
16	89	11
17	88	12
18	88	12
19	87	13
20	86	14
21	86	14
22	85	15
23	84	16
24	84	16
25	83	17
26	82	18
27	82	18
28	81	19
29	81	19
30	80	20

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm

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 5:36 AM to 5:30 AM, and sunset from 5:41 PM to 5:27 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	5:36	5:36	5:36	5:36	5:35	5:35	5:35	5:35	5:35	5:34	5:34	5:34	5:34	5:33	5:33	5:33	5:33	5:32	5:32	5:32	5:32	5:31	5:31	5:31	5:31	5:30	5:30	5:30	5:30	5:30
Sunset (PM)	5:41	5:41	5:41	5:40	5:40	5:39	5:39	5:38	5:38	5:37	5:37	5:36	5:36	5:35	5:35	5:34	5:34	5:33	5:33	5:32	5:32	5:31	5:31	5:30	5:30	5:29	5:29	5:28	5:28	5:27

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	5:36	5:41
2	12.1	5:36	5:41
3	12.1	5:36	5:41
4	12.1	5:36	5:40
5	12.1	5:35	5:40
6	12.1	5:35	5:39
7	12.1	5:35	5:39
8	12.1	5:35	5:38
9	12.1	5:35	5:38
10	12.0	5:34	5:37
11	12.0	5:34	5:37
12	12.0	5:34	5:36
13	12.0	5:34	5:36
14	12.0	5:33	5:35
15	12.0	5:33	5:35
16	12.0	5:33	5:34
17	12.0	5:33	5:34
18	12.0	5:32	5:33
19	12.0	5:32	5:33
20	12.0	5:32	5:32
21	12.0	5:32	5:32
22	12.0	5:31	5:31
23	12.0	5:31	5:31
24	12.0	5:31	5:30
25	12.0	5:31	5:30
26	12.0	5:30	5:29
27	12.0	5:30	5:29
28	12.0	5:30	5:28
29	12.0	5:30	5:28
30	12.0	5:30	5:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.92 kWh/m².

For context, solar energy here swings from a low near 3.64 kWh/m² to a high of 5.62 kWh/m² in January across the year — September's 4.92 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.8	Bright
2	4.8	Bright
3	4.8	Bright
4	4.8	Bright
5	4.8	Bright
6	4.8	Bright
7	4.8	Bright
8	4.8	Bright
9	4.8	Bright
10	4.8	Bright
11	4.9	Bright
12	4.9	Bright
13	4.9	Bright
14	4.9	Bright
15	4.9	Bright
16	4.9	Bright
17	4.9	Bright
18	4.9	Bright
19	4.9	Bright
20	4.9	Bright
21	4.9	Bright
22	5.0	Bright
23	5.0	Bright
24	5.0	Bright
25	5.0	Bright
26	5.0	Bright
27	5.0	Bright
28	5.0	Bright
29	5.0	Bright
30	5.0	Bright

Planning a trip in September

Hazard calendar for Cumaribo

In seasonPeak

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

Cumaribo's rainy season runs April–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 Cumaribo?

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

2.9

Sightseeing

9th-best month of the year

4.0

Beach & pool

6th-best month of the year

September is a weaker month for outdoor sightseeing in Cumaribo.

What to pack for Cumaribo in September

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

In September, Cumaribo sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in Cumaribo 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 Cumaribo peaks around February 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 10 (extreme).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	14	12	12	12	12	11	11	13	12	11	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high

	UV index (midday)	Level
Jan	12	Extreme
Feb	14	Extreme
Mar	12	Extreme
Apr	12	Extreme
May	12	Extreme
Jun	12	Extreme
Jul	11	Extreme
Aug	11	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	11	Extreme
Dec	10	Very high

Air quality in Cumaribo 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 Cumaribo is worst in March — around 29 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (September, 12 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	16	23	29	21	15	14	14	14	12	13	15	13
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	16	Moderate
Feb	23	Moderate
Mar	29	Moderate
Apr	21	Moderate
May	15	Moderate
Jun	14	Moderate
Jul	14	Moderate
Aug	14	Moderate
Sep	12	Moderate
Oct	13	Moderate
Nov	15	Moderate
Dec	13	Moderate

Location & terrain

Where is Cumaribo?

Cumaribo sits at 4.4°N, 69.8°W, 161 m above sea level, in Colombia. The nearest listed city is Villanueva, 258 km away.

Topography around Cumaribo

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

Within 3 km, the terrain around Cumaribo has only modest variations in elevation — a maximum elevation change of 69 m around an average of 144 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 86 m; within 80 km, only modest variations in elevation — a maximum elevation change of 135 m.

The land around Cumaribo is covered by grassland (77%) and trees (20%) within 3 km, grassland (57%) and trees (40%) within 16 km, and trees (52%) and grassland (47%) within 80 km.

3 km

69 m

grassland 77%

16 km

86 m

grassland 57%

80 km

135 m

trees 52%

treesgrasslandartificial surfaceswater

← August Cumaribo year-round climate October →Best places to visit in September

September weather nearby: Villanueva 258 km · Puerto Ayacucho 280 km · Paz de Ariporo 281 km · Elorza 293 km · Yopal 304 km · Tame 310 km · Arauca 312 km · Aguazul 315 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

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 Cumaribo (4.4455°, -69.799°, elevation 161 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).

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	23
9	30	23
10	30	23
11	30	23
12	30	23
13	30	23
14	30	23
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	15	85
4	16	84
5	15	85
6	14	86
7	14	86
8	14	86
9	14	86
10	13	87
11	13	87
12	13	87
13	13	87
14	13	87
15	13	87
16	13	87
17	13	87
18	13	87
19	13	87
20	14	86
21	14	86
22	14	86
23	14	86
24	15	85
25	15	85
26	15	85
27	16	84
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	90
2	90
3	90
4	90
5	89
6	89
7	89
8	89
9	90
10	90
11	90
12	89
13	89
14	89
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	90
30	90

	Oppressive (%)	Miserable (%)
1	95	5
2	95	5
3	94	6
4	94	6
5	94	6
6	93	7
7	93	7
8	92	8
9	92	8
10	92	8
11	91	9
12	91	9
13	90	10
14	90	10
15	89	11
16	89	11
17	88	12
18	88	12
19	87	13
20	86	14
21	86	14
22	85	15
23	84	16
24	84	16
25	83	17
26	82	18
27	82	18
28	81	19
29	81	19
30	80	20

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	23
9	30	23
10	30	23
11	30	23
12	30	23
13	30	23
14	30	23
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	15	85
4	16	84
5	15	85
6	14	86
7	14	86
8	14	86
9	14	86
10	13	87
11	13	87
12	13	87
13	13	87
14	13	87
15	13	87
16	13	87
17	13	87
18	13	87
19	13	87
20	14	86
21	14	86
22	14	86
23	14	86
24	15	85
25	15	85
26	15	85
27	16	84
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	90
2	90
3	90
4	90
5	89
6	89
7	89
8	89
9	90
10	90
11	90
12	89
13	89
14	89
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	90
30	90

	Oppressive (%)	Miserable (%)
1	95	5
2	95	5
3	94	6
4	94	6
5	94	6
6	93	7
7	93	7
8	92	8
9	92	8
10	92	8
11	91	9
12	91	9
13	90	10
14	90	10
15	89	11
16	89	11
17	88	12
18	88	12
19	87	13
20	86	14
21	86	14
22	85	15
23	84	16
24	84	16
25	83	17
26	82	18
27	82	18
28	81	19
29	81	19
30	80	20

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	23
9	30	23
10	30	23
11	30	23
12	30	23
13	30	23
14	30	23
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23

	Clearer (%)	Cloudier (%)
1	15	85
2	15	85
3	15	85
4	16	84
5	15	85
6	14	86
7	14	86
8	14	86
9	14	86
10	13	87
11	13	87
12	13	87
13	13	87
14	13	87
15	13	87
16	13	87
17	13	87
18	13	87
19	13	87
20	14	86
21	14	86
22	14	86
23	14	86
24	15	85
25	15	85
26	15	85
27	16	84
28	16	84
29	16	84
30	16	84

	Rain chance (%)
1	90
2	90
3	90
4	90
5	89
6	89
7	89
8	89
9	90
10	90
11	90
12	89
13	89
14	89
15	89
16	89
17	89
18	89
19	89
20	89
21	89
22	89
23	89
24	89
25	89
26	89
27	89
28	89
29	90
30	90

	Oppressive (%)	Miserable (%)
1	95	5
2	95	5
3	94	6
4	94	6
5	94	6
6	93	7
7	93	7
8	92	8
9	92	8
10	92	8
11	91	9
12	91	9
13	90	10
14	90	10
15	89	11
16	89	11
17	88	12
18	88	12
19	87	13
20	86	14
21	86	14
22	85	15
23	84	16
24	84	16
25	83	17
26	82	18
27	82	18
28	81	19
29	81	19
30	80	20