Climate and average weather in Pasto

In Pasto, the weather is mild, wet, and mostly cloudy and remarkably steady, with daytime highs holding near mild levels all year. The wettest stretch peaks around November.

Best: late June to mid October

Over the course of the year, the temperature in Pasto typically varies from 10°C to 20°C, and is rarely below 8°C or above 22°C. September is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Pasto for warm-weather activities are from early January to mid February and late June to mid October.

Hottest
Sep
20°
Coldest
Jul
10°
Wettest
Nov
244 mm
Driest
Aug
63 mm
Rain / yr
2034 mm
287 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
2,569 m
1.2°N
Clearest
Aug
77% cloud
Air quality
Good
PM2.5 9 µg/m³ · 2014

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

Pasto weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late June to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Pasto, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Pasto stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 20°C and low of 10°C; the coolest is July, with an average low of 10°C and high of 18°C.

Days typically run about 8°C warmer than nights year-round.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1910
Feb1911
Mar1911
Apr1911
May1911
Jun1810
Jul1810
Aug1910
Sep2010
Oct1910
Nov1910
Dec1910

Average hourly temperature in Pasto

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on September afternoons, near 20°C, and coldest before dawn in July, near 10°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Pasto weather by month

Every month at a glance. Click a month for its detailed page.

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

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Pasto gets about 2034 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.9 months, from around Feb 15 to Jun 13, peaking in April at about 93% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 14.

November is the wettest month by volume, with 244 mm over about 27 wet days; August is the driest, with 63 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetApr 17 · 93%Aug 14 · 54%
Rain on a day (%)Rain days
Jan7422
Feb7922
Mar8828
Apr9228
May8827
Jun7924
Jul7022
Aug5617
Sep6620
Oct8125
Nov8827
Dec8326

Monthly rainfall

Over a full year, Pasto collects about 2034 mm of rain across 287 wet days — roughly 170 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 244 mm, while August is the driest at just 63 mm. The three wettest months alone bring about 35% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec177182236231181114926399195244222
Rainfall (mm)Rain days
Jan17722
Feb18222
Mar23628
Apr23128
May18127
Jun11424
Jul9222
Aug6317
Sep9920
Oct19525
Nov24427
Dec22226

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Pasto, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around June 21 and lasts for 3.2 months, ending around September 26. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 19% of the time on average.

The cloudier part of the year begins around February 17 and lasts for 4.1 months, ending around June 20. The cloudiest month is March, when it is overcast or mostly cloudy 98% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 7 · 21%Mar 26 · 2%partly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1288
Feb991
Mar298
Apr397
May397
Jun892
Jul1684
Aug1981
Sep1387
Oct694
Nov496
Dec1090

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. Close to the equator, Pasto barely changes through the year: days stay near 12 h 06 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.96:206:17
Feb12.06:256:23
Mar12.06:196:19
Apr12.06:096:10
May12.16:046:07
Jun12.16:076:11
Jul12.16:136:17
Aug12.06:126:14
Sep12.06:036:04
Oct12.05:555:53
Nov11.95:565:53
Dec11.96:076:03

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Pasto gets about 0 sunny days a month gloomy — and it barely shifts through the year, holding between 0 and 1 days every month. Clear skies here are a flat line, not a season.

05JanFebMarAprMayJunJulAugSepOctNovDecgloomySep 101 daysMar 30 days
Sunny daysSky
Jan1Gloomy
Feb1Gloomy
Mar0Gloomy
Apr0Gloomy
May0Gloomy
Jun0Gloomy
Jul1Gloomy
Aug1Gloomy
Sep1Gloomy
Oct0Gloomy
Nov0Gloomy
Dec0Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Pasto, the air stays dry or comfortable essentially all year. Even in January, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdry
Dry (%)Comfortable (%)
Jan982
Feb973
Mar964
Apr973
May991
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov973
Dec991

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Pasto is typically calm, near 6 km/h, and varies little with the seasons.

The windier part of the year lasts 4.2 months, from around May 27 to Sep 30. The windiest month is August, averaging about 8 km/h (calm).

The calmer part of the year runs from around Oct 1 to May 26, with November the calmest month at about 5 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeAug 3 · 9 km/hNov 13 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr5calm
May6calm
Jun7calm
Jul8calm
Aug8calm
Sep7calm
Oct5calm
Nov5calm
Dec5calm

Best time to visit Pasto

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Pasto throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late September, Pasto is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best times of year to visit Pasto for general outdoor tourist activities run from late June to mid October and again from late December to mid February, with a peak score in the third week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationAug 16 · 4.9

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan4.1fair
Feb3.9fair
Mar3.5poor
Apr3.3poor
May3.5poor
Jun3.8fair
Jul4.2fair
Aug4.8fair
Sep4.5fair
Oct3.8fair
Nov3.5poor
Dec3.7fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. In Pasto it holds close to 2.3 all year, so any month is about as good as another for hot-weather activities.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbeach/pool scoretemperaturecloudsprecipitation

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Pasto, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Pasto packs about the same all year — highs hold near 20°C. Across the year the things worth having are rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In September, Pasto sees daytime highs around 20°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 20 days see rain.

UV index (midday) in Pasto by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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

Average hourly UV index in Pasto

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan8.57
Feb8.57
Mar8.57
Apr86.5
May8.56.5
Jun86.5
Jul86.5
Aug86
Sep8.56.5
Oct86.5
Nov86
Dec86
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Pasto is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Pasto banks about 1,651 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around April.

05001,0001,500JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan141
Feb132
Mar147
Apr143
May145
Jun127
Jul123
Aug131
Sep141
Oct146
Nov135
Dec140

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Pasto receives about 5.0 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.6 and 5.7 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseSep 95.7 kWhNov 234.6 kWh
Solar energy (kWh/m²)Level
Jan5.0Bright
Feb5.1Bright
Mar5.0Bright
Apr4.8Bright
May4.7Bright
Jun4.6Bright
Jul4.8Bright
Aug5.4Bright
Sep5.7Bright
Oct5.2Bright
Nov4.6Bright
Dec4.7Bright

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
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).