Climate and average weather in Sonsón

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

Best: mid June to early September

Over the course of the year, the temperature in Sonsón typically varies from 14°C to 26°C, and is rarely below 12°C or above 29°C. August is the hottest month of the year, while November is the coldest.

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

Hottest
Aug
26°
Coldest
Nov
15°
Wettest
Oct
389 mm
Driest
Jul
109 mm
Rain / yr
3060 mm
268 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
2,493 m
5.7°N
Clearest
Jan
73% cloud

Sonsón 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 mid June to early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Sonsón stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 26°C and low of 14°C; the coolest is November, with an average low of 15°C and high of 23°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in August.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2414
Feb2414
Mar2415
Apr2415
May2415
Jun2514
Jul2614
Aug2614
Sep2514
Oct2415
Nov2315
Dec2414

Average hourly temperature in Sonsón

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 August afternoons, near 26°C, and coldest before dawn in November, near 15°C.

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

Sonsón 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
Jan24° / 14°15020.611.75.1
Feb24° / 14°18821.411.84.7
Mar24° / 15°31125.6124.3
Apr24° / 15°3822612.14.0
May24° / 15°34926.112.34.1
Jun25° / 14°16818.812.35.0
Jul26° / 14°10913.412.35.8
Aug26° / 14°13313.112.25.7
Sep25° / 14°25821.8124.6
Oct24° / 15°38928.311.93.8
Nov23° / 15°38628.811.73.6
Dec24° / 14°23924.211.74.5

Chance of rain

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

Sonsón gets about 3060 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 3.2 months, from around Sep 17 to Dec 22, peaking in November at about 98% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 2.

October is the wettest month by volume, with 389 mm over about 28 wet days; July is the driest, with 109 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwettermostly drysome rainoften wetvery wetNov 7 · 98%Aug 2 · 35%
Rain on a day (%)Rain days
Jan6821
Feb7521
Mar8326
Apr8726
May8326
Jun6319
Jul4313
Aug4413
Sep7222
Oct9128
Nov9529
Dec7824

Monthly rainfall

Over a full year, Sonsón collects about 3060 mm of rain across 268 wet days — roughly 255 mm in an average month.

It doesn’t fall evenly. October is the wettest month with 389 mm, while July is the driest at just 109 mm. The three wettest months alone bring about 38% of the year’s total.

050100150200250300350400450JanFebMarAprMayJunJulAugSepOctNovDec150188311382349168109133258389386239
Rainfall (mm)Rain days
Jan15021
Feb18821
Mar31126
Apr38226
May34926
Jun16819
Jul10913
Aug13313
Sep25822
Oct38928
Nov38629
Dec23924

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Sonsón, 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 December 8 and lasts for 3.4 months, ending around March 19. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 25% of the time on average.

The cloudier part of the year begins around March 20 and lasts for 3.4 months, ending around July 2. The cloudiest month is May, 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 28 · 26%May 7 · 1%partly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan2575
Feb2179
Mar1189
Apr298
May298
Jun793
Jul1288
Aug1486
Sep793
Oct397
Nov496
Dec1684

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, Sonsón barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.76:196:02
Feb11.86:216:10
Mar12.06:126:10
Apr12.15:586:05
May12.35:506:05
Jun12.35:526:11
Jul12.35:586:16
Aug12.26:006:11
Sep12.05:555:56
Oct11.95:505:42
Nov11.75:545:39
Dec11.76:075:48

Sunny days

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

Sonsón averages about 1 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 3 days.

The sunnier stretch runs 3.2 months, from around Dec 10 to Mar 17. The sunniest month is January, with roughly 3 sunny days (gloomy).

The greyest month is April, down near 0 sunny days — about 98% fewer than the January peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedJan 293 daysApr 140 days
Sunny daysSky
Jan3Gloomy
Feb2Gloomy
Mar1Gloomy
Apr0Gloomy
May0Gloomy
Jun0Gloomy
Jul1Gloomy
Aug1Gloomy
Sep1Gloomy
Oct0Gloomy
Nov0Gloomy
Dec2Gloomy

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 Sonsón, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.5 months, from around February 21 to June 7. The muggiest month is April, when the air feels humid, muggy or worse about 68% of the time.

The most comfortable stretch runs from around June 8 to October 5, and August is the most comfortable month — the air is dry or comfortable 90% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 2 · 95%Apr 26 · 29%humidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)
Jan66232
Feb85339
Mar44453
Apr13168
May13464
Jun135631
Jul49438
Aug523710
Sep195724
Oct34751
Nov03367
Dec34552

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.

Wind in Sonsón is steady company: average speeds sit near 3 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmAug 4 · 4 km/hNov 8 · 3 km/h
Wind speed (km/h)Feels
Jan3calm
Feb4calm
Mar3calm
Apr3calm
May3calm
Jun3calm
Jul4calm
Aug4calm
Sep4calm
Oct3calm
Nov3calm
Dec3calm

Best time to visit Sonsón

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late June, Sonsón is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Sonsón for general outdoor tourist activities run from mid June to early September and again from late December to early February, with a peak score in the first week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationAug 2 · 6.1

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
Jan5.1fair
Feb4.7fair
Mar4.3fair
Apr4.0fair
May4.2fair
Jun5.0fair
Jul5.8good
Aug5.7good
Sep4.6fair
Oct3.8fair
Nov3.6fair
Dec4.5fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Sonsón for hot-weather activities is from late June to early September, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 4 · 6.0

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 Sonsón, 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.

Sonsón packs about the same all year — highs hold near 26°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Sonsón sees daytime highs around 26°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 13 days see rain.

UV index (midday) in Sonsón 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 Sonsón peaks around February 20 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 16Dec 14UV 12
UV index (midday)Level
Jan13Extreme
Feb16Extreme
Mar15Extreme
Apr12Extreme
May14Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in Sonsón

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)
Jan86
Feb8.57
Mar8.56.5
Apr86
May8.56.5
Jun86
Jul86
Aug86
Sep86.5
Oct86.5
Nov86
Dec7.55.5

Air quality in Sonsón by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Sonsón is worst in March — around 33 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1631 µg/m³Oct 2217 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb25Moderate
Mar33Moderate
Apr24Moderate
May20Moderate
Jun18Moderate
Jul18Moderate
Aug21Moderate
Sep18Moderate
Oct17Moderate
Nov17Moderate
Dec18Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Sonsón 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. Sonsón banks about 3,434 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan275
Feb258
Mar292
Apr282
May296
Jun285
Jul302
Aug316
Sep296
Oct286
Nov269
Dec277

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.

Sonsón receives about 5.2 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.3 and 6.2 kWh/m².

The brighter stretch of the year lasts 4.0 months, from around Jun 2 to Oct 1. The brightest month is August, averaging about 6.1 kWh/m² (intense).

The dimmest month is November, down near 4.3 kWh/m² — roughly 29% less than the August peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseAug 66.2 kWhNov 164.3 kWh
Solar energy (kWh/m²)Level
Jan5.1Bright
Feb5.3Bright
Mar5.3Bright
Apr4.9Bright
May4.9Bright
Jun5.5Bright
Jul6.0Bright
Aug6.2Intense
Sep5.7Bright
Oct4.8Bright
Nov4.3Bright
Dec4.6Bright

Where is Sonsón?

Sonsón sits at 5.7°N, 75.3°W, 2,493 m above sea level, in Colombia. The nearest listed city is Abejorral, 16 km away.

Topography around Sonsón

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

Within 3 km, the terrain around Sonsón has very significant variations in elevation — a maximum elevation change of 1,480 m around an average of 2,478 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,624 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,836 m.

The land around Sonsón is covered by grassland (65%) and trees (29%) within 3 km, trees (65%) and grassland (35%) within 16 km, and trees (68%) and grassland (30%) within 80 km.

3 km
1,480 m
16 km
2,624 m
80 km
3,836 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Abejorral 16 km · Aguadas 20 km · La Unión 30 km · La Ceja 38 km · Salamina 39 km · Carmen de Viboral 41 km · Retiro 44 km · Fredonia 46 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 Sonsón (5.7106°, -75.3107°, elevation 2,493 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).