Retiro weather in May

In May, Retiro sees average daytime highs of 23°C and overnight lows near 14°C, with 368 mm of rain across 28.8 wet days and about 12.3 hours of daylight. It is the 5th-warmest and 1st-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 0% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 12 h 12 min at the start of May to 12 h 18 min by month's end. Set against the rest of the year, May is Retiro's 12th-clearest and 8th-windiest month. For the whole year in context, see Retiro's year-round climate.

Daytime high
23°
5th warmest
Overnight low
14°
12th coldest
Rainfall
368 mm
28.8 wet days
Daylight
12 h 18 min
5:50 AM – 6:07 PM
Cloud cover
94%
12th clearest
Wind
3 km/h
8th windiest
Solar energy
4.86 kWh/m²
Travel score
3.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical May day in Retiro reaches about 23°C in the afternoon and slips back to 14°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, May runs on par with April and on par with June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12314
22314
32314
42314
52314
62314
72314
82314
92314
102314
112314
122314
132314
142314
152314
162314
172314
182314
192314
202314
212314
222314
232314
242314
252314
262314
272314
282314
292313
302313
312313

Retiro weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 13°13622.211.74.8
Feb23° / 13°18422.611.84.4
Mar23° / 14°28127.6123.9
Apr23° / 14°34428.112.13.6
May23° / 14°36828.812.33.7
Jun24° / 13°23425.712.34.0
Jul24° / 13°18323.712.34.5
Aug25° / 13°19422.712.24.6
Sep24° / 13°27526.5124.0
Oct23° / 13°32128.911.93.6
Nov22° / 14°29028.511.73.5
Dec23° / 13°18824.411.74.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 1% of May, with mostly cloudy or overcast conditions the remaining 99%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1199
2199
3199
4199
5199
6199
7199
8199
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
24199
25199
26298
27298
28298
29298
30298
31298

Chance of precipitation in May

Any precipitation

Retiro gets around 368 mm of rain over 28.8 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 92% and peaks near 93% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
193
293
393
493
592
692
792
892
992
1091
1191
1291
1391
1491
1591
1691
1791
1891
1992
2092
2192
2293
2393
2493
2593
2693
2793
2893
2993
3093
3192

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 66% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
105842
205842
305842
405842
505842
605842
705842
805941
905941
1006040
1106040
1206139
1306139
1406238
1506337
1606436
1706634
1806733
1906832
2006931
2107030
2207129
2307228
2407228
2507327
2607426
2707525
2807624
2917623
3017722
3117821

Wind in May

Winds average 3 km/h in May.

Across May, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 12 min at the start of May to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 5:53 AM to 5:50 AM, and sunset from 6:06 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:536:06
212.25:536:06
312.25:526:06
412.25:526:06
512.25:526:06
612.25:526:06
712.25:516:06
812.25:516:06
912.25:516:06
1012.35:516:06
1112.35:516:06
1212.35:516:06
1312.35:506:06
1412.35:506:06
1512.35:506:06
1612.35:506:07
1712.35:506:07
1812.35:506:07
1912.35:506:07
2012.35:506:07
2112.35:506:07
2212.35:506:07
2312.35:506:08
2412.35:506:08
2512.35:506:08
2612.35:506:08
2712.35:506:08
2812.35:506:08
2912.35:506:09
3012.35:506:09
3112.35:506:09

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.86 kWh/m².

For context, solar energy here swings from a low near 4.2 kWh/m² to a high of 6.14 kWh/m² in August across the year — May's 4.86 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.1Bright
315.1Bright
Planning a trip in May

Is May a good time to visit Retiro?

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

3.7
Sightseeing
9th-best month of the year
3.0
Beach & pool
9th-best month of the year

May is a weaker month for outdoor sightseeing in Retiro.

What to pack for Retiro in May

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

In May, Retiro sees daytime highs around 23°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 29 days see rain.

rain gearlight clothessun protection

UV index in Retiro in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Retiro peaks around February 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 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 22UV 15Dec 12UV 12
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May14Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep14Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Retiro in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Retiro is worst in March — around 30 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (October, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1530 µg/m³Oct 2118 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb27Moderate
Mar30Moderate
Apr24Moderate
May21Moderate
Jun20Moderate
Jul20Moderate
Aug21Moderate
Sep20Moderate
Oct18Moderate
Nov19Moderate
Dec22Moderate
Location & terrain

Where is Retiro?

Retiro sits at 6.1°N, 75.5°W, 2,166 m above sea level, in Colombia. The nearest listed city is La Ceja, 8.0 km away.

Topography around Retiro

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

Within 3 km, the terrain around Retiro has significant variations in elevation — a maximum elevation change of 456 m around an average of 2,287 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,015 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,609 m.

The land around Retiro is covered by trees (57%) and grassland (39%) within 3 km, trees (60%) and grassland (36%) within 16 km, and trees (67%) and grassland (31%) within 80 km.

3 km
456 m
16 km
2,015 m
80 km
3,609 m
treesgrasslandartificial surfaceswater
May weather nearby: La Ceja 8.0 km · Caldas 15 km · Sabaneta 16 km · Envigado 16 km · Itagüí 18 km · Rionegro 18 km · La Unión 18 km · Carmen de Viboral 19 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 Retiro (6.0586°, -75.5031°, elevation 2,166 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).