Bello weather in September

In September, Bello sees average daytime highs of 23°C and overnight lows near 13°C, with 247 mm of rain across 27.2 wet days and about 12 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels comfortable.

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 Bello's 7th-clearest and 4th-windiest month. For the whole year in context, see Bello's year-round climate.

Daytime high
23°
3rd warmest
Overnight low
13°
6th coldest
Rainfall
247 mm
27.2 wet days
Daylight
12 hours
5:56 AM – 5:58 PM
Cloud cover
90%
7th clearest
Wind
3 km/h
4th windiest
Solar energy
5.64 kWh/m²
Travel score
3.8
out of 10
Air quality
Elevated
PM2.5 16 µg/m³ · 2019

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 23°C through the month.

A typical September day in Bello reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12413
22413
32413
42413
52413
62413
72413
82413
92413
102413
112413
122413
132413
142313
152313
162313
172313
182313
192313
202313
212313
222313
232313
242313
252313
262313
272313
282313
292313
302313

Bello weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 13°13421.311.74.9
Feb23° / 13°16722.711.84.3
Mar23° / 13°26828.1123.8
Apr23° / 13°33528.612.13.5
May23° / 14°33729.512.33.6
Jun23° / 13°20826.712.43.9
Jul24° / 13°17225.612.34.2
Aug24° / 13°1802512.24.3
Sep23° / 13°24727.2123.8
Oct22° / 13°30729.311.93.6
Nov22° / 13°29428.611.73.5
Dec22° / 13°19223.811.64.4

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 95%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5595
6595
7595
8595
9595
10595
11595
12595
13595
14595
15595
16595
17496
18496
19496
20496
21496
22496
23496
24496
25496
26397
27397
28298
29298
30298

Chance of precipitation in September

Any precipitation

Bello gets around 247 mm of rain over 27.2 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 90% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
189
289
389
489
589
689
790
890
990
1090
1190
1290
1390
1490
1590
1690
1791
1891
1991
2091
2191
2291
2391
2491
2591
2691
2791
2891
2991
3091

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
119801
218811
318811
417821
516831
615841
714851
813861
912871
1011881
1110891
129901
139901
148911
157912
167912
176922
185932
195932
204942
214942
223952
233952
243952
253952
263952
273952
283952
293952
303952

Wind in September

Winds average 3 km/h in September.

Across September, daily wind ranges from about 3 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
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

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 5:58 AM to 5:53 AM, and sunset from 6:06 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:586:06
212.15:586:05
312.15:586:05
412.15:586:04
512.15:586:04
612.15:576:03
712.15:576:02
812.15:576:02
912.15:576:01
1012.15:576:01
1112.15:566:00
1212.15:566:00
1312.15:565:59
1412.05:565:59
1512.05:565:58
1612.05:565:58
1712.05:555:57
1812.05:555:56
1912.05:555:56
2012.05:555:55
2112.05:555:55
2212.05:545:54
2312.05:545:54
2412.05:545:53
2512.05:545:53
2612.05:545:52
2712.05:535:52
2812.05:535:51
2912.05:535:51
3012.05:535:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.64 kWh/m².

For context, solar energy here swings from a low near 4.25 kWh/m² to a high of 6.15 kWh/m² in August across the year — September's 5.64 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
46.0Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.2Bright
305.2Bright
Planning a trip in September

Is September a good time to visit Bello?

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

3.8
Sightseeing
7th-best month of the year
3.1
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Bello.

What to pack for Bello in September

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

In September, Bello sees daytime highs around 23°C and nights near 13°C. Pack rain gear. Worth having: light clothes and sun protection. About 27 days see rain.

rain gearlight clothessun protection

UV index in Bello in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bello peaks around March 10 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 10UV 16Dec 11UV 12
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr12Extreme
May14Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep14Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Bello 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 Bello is worst in March — around 22 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (October, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Bello's WHO annual average of 16 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1521 µg/m³Oct 2113 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb19Moderate
Mar22Moderate
Apr17Moderate
May15Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep14Moderate
Oct13Moderate
Nov14Moderate
Dec16Moderate
Location & terrain

Where is Bello?

Bello sits at 6.3°N, 75.6°W, 1,456 m above sea level, in Colombia. The nearest listed city is Copacabana, 6.0 km away.

Topography around Bello

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

Within 3 km, the terrain around Bello has large variations in elevation — a maximum elevation change of 817 m around an average of 1,574 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,858 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,637 m.

The land around Bello is covered by artificial surfaces (40%), trees (29%) and grassland (29%) within 3 km, trees (48%) and grassland (39%) within 16 km, and trees (64%) and grassland (35%) within 80 km.

3 km
817 m
16 km
1,858 m
80 km
3,637 m
treesgrasslandartificial surfacesbare terrainwater
September weather nearby: Copacabana 6.0 km · Medellin 10 km · Itagüí 18 km · Envigado 18 km · Sabaneta 22 km · La Estrella 22 km · San Vicente 25 km · Barbosa 27 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 Bello (6.3373°, -75.558°, elevation 1,456 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).