Rioblanco weather in September

In September, Rioblanco sees average daytime highs of 24°C and overnight lows near 13°C, with 24 mm of rain across 4.7 wet days and about 12 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 3% of the time in September, and the air most often feels dry.

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 Rioblanco's 5th-clearest and 3rd-windiest month. For the whole year in context, see Rioblanco's year-round climate.

Daytime high
24°
1st warmest
Overnight low
13°
7th coldest
Rainfall
24 mm
4.7 wet days
Daylight
12 hours
5:56 AM – 5:57 PM
Cloud cover
81%
5th clearest
Wind
5 km/h
3rd windiest
Solar energy
5.4 kWh/m²
Travel score
7.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Rioblanco reaches about 24°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°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)
12412
22412
32412
42412
52412
62413
72413
82413
92413
102413
112413
122413
132413
142413
152413
162413
172413
182413
192413
202413
212413
222413
232413
242413
252413
262413
272413
282413
292413
302413

Rioblanco weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 12°10411.111.86.2
Feb22° / 12°7210.611.96.2
Mar22° / 13°10414.4125.7
Apr22° / 13°1211612.15.1
May22° / 13°6812.112.25.8
Jun22° / 13°19512.26.8
Jul23° / 12°113.412.27.3
Aug24° / 12°61.312.17.8
Sep24° / 13°244.7127.2
Oct23° / 13°14314.611.95.6
Nov21° / 13°21318.511.84.9
Dec22° / 12°14713.711.85.7

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 10% of September, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11684
21684
31684
41684
51684
61684
71585
81585
91585
101585
111585
121585
131387
141387
151387
161387
171387
181288
191288
201288
211288
221288
231288
241288
251288
261189
271189
281189
291189
301189

Chance of precipitation in September

Any precipitation

Rioblanco gets around 24 mm of rain over 4.7 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 16% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
16
27
37
48
59
69
710
811
912
1012
1113
1214
1314
1415
1516
1616
1717
1817
1918
2018
2119
2220
2320
2421
2522
2623
2724
2826
2927
3028

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
14991
15991
16991
17991
18991
19982
20982
21982
22982
23982
24973
25973
26973
27964
28955
29955
30946

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 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
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 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 6:00 AM to 5:53 AM, and sunset from 6:04 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:006:04
212.16:006:04
312.16:006:03
412.16:006:03
512.15:596:03
612.15:596:02
712.05:596:02
812.05:586:01
912.05:586:01
1012.05:586:00
1112.05:586:00
1212.05:575:59
1312.05:575:59
1412.05:575:58
1512.05:575:58
1612.05:565:57
1712.05:565:57
1812.05:565:57
1912.05:565:56
2012.05:555:56
2112.05:555:55
2212.05:555:55
2312.05:545:54
2412.05:545:54
2512.05:545:53
2612.05:545:53
2712.05:535:52
2812.05:535:52
2912.05:535:52
3012.05:535:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.4 kWh/m².

For context, solar energy here swings from a low near 4.44 kWh/m² to a high of 5.46 kWh/m² in August across the year — September's 5.4 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
95.5Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Rioblanco

In seasonPeak

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

Rioblanco's rainy season runs March–April, 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 Rioblanco?

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

7.2
Sightseeing
3rd-best month of the year
6.1
Beach & pool
2nd-best month of the year

September is one of the better times to visit Rioblanco for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rioblanco in September

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

In September, Rioblanco sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Rioblanco 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 Rioblanco peaks around February 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 16Dec 11UV 12
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May15Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Air quality in Rioblanco 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 Rioblanco is worst in March — around 25 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (July, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 1525 µg/m³Jul 159 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb22Moderate
Mar25Moderate
Apr19Moderate
May13Moderate
Jun11Good
Jul9Good
Aug12Good
Sep14Moderate
Oct14Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Rioblanco?

Rioblanco sits at 3.5°N, 75.6°W, 1,038 m above sea level, in Colombia. The nearest listed city is Chaparral, 28 km away.

Topography around Rioblanco

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

Within 3 km, the terrain around Rioblanco has large variations in elevation — a maximum elevation change of 976 m around an average of 1,219 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,947 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,060 m.

The land around Rioblanco is covered by trees (59%) and grassland (41%) within 3 km, trees (73%) and grassland (27%) within 16 km, and trees (59%) and grassland (36%) within 80 km.

3 km
976 m
16 km
2,947 m
80 km
5,060 m
treesgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Chaparral 28 km · Planadas 37 km · Natagaima 62 km · Pradera 68 km · Florida 69 km · Miranda 72 km · Palmira 73 km · El Cerrito 76 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 Rioblanco (3.5297°, -75.6453°, elevation 1,038 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).