Yopal weather in September

In September, Yopal sees average daytime highs of 28°C and overnight lows near 21°C, with 94 mm of rain across 20.8 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 28°C through the month. The sky is clear or mostly clear about 6% of the time in September, and the air most often feels muggy.

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 Yopal's 7th-clearest and 6th-windiest month. For the whole year in context, see Yopal's year-round climate.

Daytime high: 28°; 8th warmest
Overnight low: 21°; 3rd coldest
Rainfall: 94 mm; 20.8 wet days
Daylight: 12 hours; 5:43 AM – 5:45 PM
Cloud cover: 78%; 7th clearest
Wind: 4 km/h; 6th windiest
Solar energy: 5.68 kWh/m²
Travel score: 4.3; out of 10

← August Yopal 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 28°C through the month.

A typical September day in Yopal reaches about 28°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°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)	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21

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

Yopal 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	31° / 21°	9	2.4	11.7	5.4
Feb	32° / 22°	16	3	11.8	4.8
Mar	31° / 23°	54	8.9	12	4.4
Apr	29° / 22°	166	20.5	12.1	3.8
May	28° / 21°	227	26.1	12.2	3.7
Jun	27° / 21°	222	26.5	12.3	3.7
Jul	26° / 20°	188	26.1	12.3	4.0
Aug	27° / 21°	122	21.8	12.2	4.5
Sep	28° / 21°	94	20.8	12	4.3
Oct	29° / 21°	118	21.1	11.9	4.1
Nov	29° / 21°	100	17.2	11.8	4.5
Dec	30° / 21°	27	5.8	11.7	5.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 79%.

	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 (%)	24	24	24	24	23	23	23	22	21	21	21	21	20	19	19	19	20	20	20	19	20	20	20	20	20	20	20	20	20	20
Cloudier (%)	76	76	76	76	77	77	77	78	79	79	79	79	80	81	81	81	80	80	80	81	80	80	80	80	80	80	80	80	80	80

	Clearer (%)	Cloudier (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	23	77
6	23	77
7	23	77
8	22	78
9	21	79
10	21	79
11	21	79
12	21	79
13	20	80
14	19	81
15	19	81
16	19	81
17	20	80
18	20	80
19	20	80
20	19	81
21	20	80
22	20	80
23	20	80
24	20	80
25	20	80
26	20	80
27	20	80
28	20	80
29	20	80
30	20	80

Chance of precipitation in September

Any precipitation

Yopal gets around 94 mm of rain over 20.8 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 69% and peaks near 70% 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 (%)	69	69	69	69	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	70	69	69	69	68	68	68	67	67	67	67

	Rain chance (%)
1	69
2	69
3	69
4	69
5	70
6	70
7	70
8	70
9	70
10	70
11	70
12	70
13	70
14	70
15	70
16	70
17	70
18	70
19	70
20	70
21	69
22	69
23	69
24	68
25	68
26	68
27	67
28	67
29	67
30	67

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 81% of days. Sticky, muggy-or-worse air turns up on roughly 99% 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
Humid (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0
Muggy (%)	85	84	84	83	83	83	83	82	82	82	81	81	81	81	80	80	80	80	80	80	79	80	80	80	80	80	80	80	80	80
Oppressive (%)	14	15	15	16	16	16	16	17	17	17	18	18	18	18	19	19	19	19	19	19	20	20	20	20	20	20	20	20	20	20

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	85	14
2	1	84	15
3	1	84	15
4	1	83	16
5	1	83	16
6	1	83	16
7	1	83	16
8	1	82	17
9	1	82	17
10	1	82	17
11	1	81	18
12	1	81	18
13	1	81	18
14	1	81	18
15	1	80	19
16	1	80	19
17	1	80	19
18	1	80	19
19	1	80	19
20	1	80	19
21	1	79	20
22	0	80	20
23	0	80	20
24	0	80	20
25	0	80	20
26	0	80	20
27	0	80	20
28	0	80	20
29	0	80	20
30	0	80	20

Wind in September

Winds average 4 km/h in September.

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.

	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)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
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	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	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 5:46 AM to 5:40 AM, and sunset from 5:52 PM to 5:38 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	12.1	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
Sunrise (AM)	5:46	5:46	5:46	5:46	5:45	5:45	5:45	5:45	5:45	5:44	5:44	5:44	5:44	5:43	5:43	5:43	5:43	5:43	5:42	5:42	5:42	5:42	5:42	5:41	5:41	5:41	5:41	5:40	5:40	5:40
Sunset (PM)	5:52	5:52	5:51	5:51	5:50	5:50	5:49	5:49	5:48	5:48	5:47	5:47	5:46	5:46	5:45	5:45	5:44	5:44	5:43	5:43	5:42	5:42	5:41	5:41	5:40	5:40	5:39	5:39	5:38	5:38

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	5:46	5:52
2	12.1	5:46	5:52
3	12.1	5:46	5:51
4	12.1	5:46	5:51
5	12.1	5:45	5:50
6	12.1	5:45	5:50
7	12.1	5:45	5:49
8	12.1	5:45	5:49
9	12.1	5:45	5:48
10	12.1	5:44	5:48
11	12.1	5:44	5:47
12	12.0	5:44	5:47
13	12.0	5:44	5:46
14	12.0	5:43	5:46
15	12.0	5:43	5:45
16	12.0	5:43	5:45
17	12.0	5:43	5:44
18	12.0	5:43	5:44
19	12.0	5:42	5:43
20	12.0	5:42	5:43
21	12.0	5:42	5:42
22	12.0	5:42	5:42
23	12.0	5:42	5:41
24	12.0	5:41	5:41
25	12.0	5:41	5:40
26	12.0	5:41	5:40
27	12.0	5:41	5:39
28	12.0	5:40	5:39
29	12.0	5:40	5:38
30	12.0	5:40	5:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.68 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.21 kWh/m² to a high of 5.68 kWh/m² in September across the year — September's 5.68 kWh/m² sits near the top of that range.

	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)	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7
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	5.6	Bright
2	5.6	Bright
3	5.6	Bright
4	5.6	Bright
5	5.6	Bright
6	5.6	Bright
7	5.6	Bright
8	5.6	Bright
9	5.6	Bright
10	5.6	Bright
11	5.6	Bright
12	5.6	Bright
13	5.7	Bright
14	5.7	Bright
15	5.7	Bright
16	5.7	Bright
17	5.7	Bright
18	5.7	Bright
19	5.7	Bright
20	5.7	Bright
21	5.7	Bright
22	5.7	Bright
23	5.7	Bright
24	5.7	Bright
25	5.7	Bright
26	5.7	Bright
27	5.7	Bright
28	5.7	Bright
29	5.7	Bright
30	5.7	Bright

Planning a trip in September

Hazard calendar for Yopal

In seasonPeak

None of Yopal's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Yopal's rainy season runs April–August, 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 Yopal?

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

4.3

Sightseeing

7th-best month of the year

4.9

Beach & pool

8th-best month of the year

September is a reasonable time to visit Yopal for sightseeing.

What to pack for Yopal in September

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

In September, Yopal sees daytime highs around 28°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Yopal 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 Yopal peaks around February 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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	13	12	11	13	13	11	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

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

Air quality in Yopal 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 Yopal is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (July, 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)	14	18	27	22	16	14	12	12	12	14	14	12
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	14	Moderate
Feb	18	Moderate
Mar	27	Moderate
Apr	22	Moderate
May	16	Moderate
Jun	14	Moderate
Jul	12	Moderate
Aug	12	Moderate
Sep	12	Moderate
Oct	14	Moderate
Nov	14	Moderate
Dec	12	Moderate

Location & terrain

Where is Yopal?

Yopal sits at 5.3°N, 72.4°W, 426 m above sea level, in Colombia. The nearest listed city is Aguazul, 25 km away.

Topography around Yopal

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

Within 3 km, the terrain around Yopal has significant variations in elevation — a maximum elevation change of 364 m around an average of 344 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,428 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,936 m.

The land around Yopal is covered by grassland (39%), artificial surfaces (34%) and trees (23%) within 3 km, grassland (57%) and trees (39%) within 16 km, and grassland (60%) and trees (36%) within 80 km.

3 km

364 m

grassland 39%

16 km

1,428 m

grassland 57%

80 km

3,936 m

grassland 60%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

September weather nearby: Aguazul 25 km · Villanueva 48 km · Tauramena 53 km · Sogamoso 73 km · Paz de Ariporo 82 km · Duitama 89 km · Tunja 109 km · Moniquirá 144 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 Yopal (5.3357°, -72.3939°, elevation 426 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	28	21
2	28	21
3	28	21
4	28	21
5	28	21
6	28	21
7	28	21
8	28	21
9	28	21
10	28	21
11	28	21
12	28	21
13	28	21
14	28	21
15	28	21
16	28	21
17	28	21
18	28	21
19	28	21
20	28	21
21	28	21
22	28	21
23	28	21
24	28	21
25	28	21
26	28	21
27	28	21
28	28	21
29	28	21
30	28	21

	Clearer (%)	Cloudier (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	23	77
6	23	77
7	23	77
8	22	78
9	21	79
10	21	79
11	21	79
12	21	79
13	20	80
14	19	81
15	19	81
16	19	81
17	20	80
18	20	80
19	20	80
20	19	81
21	20	80
22	20	80
23	20	80
24	20	80
25	20	80
26	20	80
27	20	80
28	20	80
29	20	80
30	20	80

	Rain chance (%)
1	69
2	69
3	69
4	69
5	70
6	70
7	70
8	70
9	70
10	70
11	70
12	70
13	70
14	70
15	70
16	70
17	70
18	70
19	70
20	70
21	69
22	69
23	69
24	68
25	68
26	68
27	67
28	67
29	67
30	67

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	85	14
2	1	84	15
3	1	84	15
4	1	83	16
5	1	83	16
6	1	83	16
7	1	83	16
8	1	82	17
9	1	82	17
10	1	82	17
11	1	81	18
12	1	81	18
13	1	81	18
14	1	81	18
15	1	80	19
16	1	80	19
17	1	80	19
18	1	80	19
19	1	80	19
20	1	80	19
21	1	79	20
22	0	80	20
23	0	80	20
24	0	80	20
25	0	80	20
26	0	80	20
27	0	80	20
28	0	80	20
29	0	80	20
30	0	80	20

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

	Clearer (%)	Cloudier (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	23	77
6	23	77
7	23	77
8	22	78
9	21	79
10	21	79
11	21	79
12	21	79
13	20	80
14	19	81
15	19	81
16	19	81
17	20	80
18	20	80
19	20	80
20	19	81
21	20	80
22	20	80
23	20	80
24	20	80
25	20	80
26	20	80
27	20	80
28	20	80
29	20	80
30	20	80

	Rain chance (%)
1	69
2	69
3	69
4	69
5	70
6	70
7	70
8	70
9	70
10	70
11	70
12	70
13	70
14	70
15	70
16	70
17	70
18	70
19	70
20	70
21	69
22	69
23	69
24	68
25	68
26	68
27	67
28	67
29	67
30	67

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	85	14
2	1	84	15
3	1	84	15
4	1	83	16
5	1	83	16
6	1	83	16
7	1	83	16
8	1	82	17
9	1	82	17
10	1	82	17
11	1	81	18
12	1	81	18
13	1	81	18
14	1	81	18
15	1	80	19
16	1	80	19
17	1	80	19
18	1	80	19
19	1	80	19
20	1	80	19
21	1	79	20
22	0	80	20
23	0	80	20
24	0	80	20
25	0	80	20
26	0	80	20
27	0	80	20
28	0	80	20
29	0	80	20
30	0	80	20

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

	Clearer (%)	Cloudier (%)
1	24	76
2	24	76
3	24	76
4	24	76
5	23	77
6	23	77
7	23	77
8	22	78
9	21	79
10	21	79
11	21	79
12	21	79
13	20	80
14	19	81
15	19	81
16	19	81
17	20	80
18	20	80
19	20	80
20	19	81
21	20	80
22	20	80
23	20	80
24	20	80
25	20	80
26	20	80
27	20	80
28	20	80
29	20	80
30	20	80

	Rain chance (%)
1	69
2	69
3	69
4	69
5	70
6	70
7	70
8	70
9	70
10	70
11	70
12	70
13	70
14	70
15	70
16	70
17	70
18	70
19	70
20	70
21	69
22	69
23	69
24	68
25	68
26	68
27	67
28	67
29	67
30	67

	Humid (%)	Muggy (%)	Oppressive (%)
1	1	85	14
2	1	84	15
3	1	84	15
4	1	83	16
5	1	83	16
6	1	83	16
7	1	83	16
8	1	82	17
9	1	82	17
10	1	82	17
11	1	81	18
12	1	81	18
13	1	81	18
14	1	81	18
15	1	80	19
16	1	80	19
17	1	80	19
18	1	80	19
19	1	80	19
20	1	80	19
21	1	79	20
22	0	80	20
23	0	80	20
24	0	80	20
25	0	80	20
26	0	80	20
27	0	80	20
28	0	80	20
29	0	80	20
30	0	80	20