Pasto weather in May

In May, Pasto sees average daytime highs of 19°C and overnight lows near 11°C, with 181 mm of rain across 27.3 wet days and about 12.1 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 0% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 hours at the start of May to 12 h 06 min by month's end. Set against the rest of the year, May is Pasto's 9th-clearest and 5th-windiest month. For the whole year in context, see Pasto's year-round climate.

Daytime high
19°
9th warmest
Overnight low
11°
12th coldest
Rainfall
181 mm
27.3 wet days
Daylight
12 h 06 min
6:04 AM – 6:07 PM
Cloud cover
89%
9th clearest
Wind
6 km/h
5th windiest
Solar energy
4.65 kWh/m²
Travel score
3.5
out of 10
Air quality
Good
PM2.5 9 µg/m³ · 2014

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical May day in Pasto reaches about 19°C in the afternoon and slips back to 11°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 20°C. Set against its neighbours, May runs on par with April and on par with June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11911
21911
31911
41911
51911
61911
71911
81911
91911
101911
111911
121911
131911
141911
151911
161911
171911
181911
191911
201911
211911
221911
231911
241811
251811
261811
271811
281811
291811
301811
311811

Pasto weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 10°17722.411.94.1
Feb19° / 11°18222.4123.9
Mar19° / 11°23627.5123.5
Apr19° / 11°23127.5123.3
May19° / 11°18127.312.13.5
Jun18° / 10°11423.712.13.8
Jul18° / 10°9222.212.14.2
Aug19° / 10°6316.6124.9
Sep20° / 10°9919.9124.5
Oct19° / 10°19525.2123.8
Nov19° / 10°24426.511.93.5
Dec19° / 10°22225.811.93.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 3% of May, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5298
6298
7298
8298
9397
10397
11397
12397
13397
14397
15397
16397
17397
18397
19397
20397
21397
22397
23397
24397
25397
26397
27397
28397
29496
30496
31496

Chance of precipitation in May

Any precipitation

Pasto gets around 181 mm of rain over 27.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 88% and peaks near 92% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
192
292
392
492
592
691
791
890
990
1089
1189
1288
1388
1488
1587
1687
1786
1886
1986
2086
2186
2286
2386
2486
2586
2686
2786
2886
2986
3086
3186

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May 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%151015202531
Dry (%)Comfortable (%)
1982
2982
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in May

Winds average 6 km/h in May.

Across May, 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.

0246810151015202531
Wind speed (km/h)Feels
15calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 hours at the start of May to 12 h 06 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 6:05 AM to 6:05 AM, and sunset from 6:08 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:056:08
212.06:056:07
312.06:056:07
412.06:056:07
512.06:046:07
612.06:046:07
712.06:046:07
812.06:046:07
912.06:046:07
1012.16:046:07
1112.16:046:07
1212.16:046:07
1312.16:046:07
1412.16:046:07
1512.16:046:07
1612.16:046:07
1712.16:046:07
1812.16:046:07
1912.16:046:07
2012.16:046:07
2112.16:046:07
2212.16:046:07
2312.16:046:07
2412.16:046:08
2512.16:046:08
2612.16:046:08
2712.16:046:08
2812.16:046:08
2912.16:046:08
3012.16:046:08
3112.16:056:08

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.65 kWh/m².

For context, solar energy here swings from a low near 4.61 kWh/m² to a high of 5.65 kWh/m² in September across the year — May's 4.65 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in May

Is May a good time to visit Pasto?

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

3.5
Sightseeing
9th-best month of the year
1.4
Beach & pool
11th-best month of the year

May is a weaker month for outdoor sightseeing in Pasto.

What to pack for Pasto in May

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

In May, Pasto sees daytime highs around 19°C and nights near 11°C. Pack rain gear. Worth having: sun protection. About 27 days see rain.

rain gearsun protection

UV index in Pasto in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 16 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pasto peaks around February 20 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 23 at about 13 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 17Jul 23UV 13
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar17Extreme
Apr15Extreme
May16Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep15Extreme
Oct15Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Pasto?

Pasto sits at 1.2°N, 77.3°W, 2,569 m above sea level, in Colombia. The nearest listed city is Buesaco, 23 km away.

Topography around Pasto

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

Within 3 km, the terrain around Pasto has significant variations in elevation — a maximum elevation change of 424 m around an average of 2,616 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,750 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,628 m.

The land around Pasto is covered by artificial surfaces (53%) and grassland (31%) within 3 km, trees (57%) and grassland (37%) within 16 km, and trees (76%) and grassland (23%) within 80 km.

3 km
424 m
16 km
2,750 m
80 km
4,628 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Buesaco 23 km · San Lorenzo 33 km · Samaniego 38 km · Túquerres 40 km · Providencia 45 km · La Unión 46 km · Pupiales 55 km · Ipiales 59 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 Pasto (1.2146°, -77.2785°, elevation 2,569 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).