Climate and average weather in Tulcán

In Tulcán, 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: early August to late December

Over the course of the year, the temperature in Tulcán typically varies from 6°C to 15°C, and is rarely below 5°C or above 17°C. November is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Tulcán for warm-weather activities are from early January to late February and early August to late December.

Hottest
Nov
15°
Coldest
Jul
Wettest
Nov
290 mm
Driest
Aug
94 mm
Rain / yr
2432 mm
324 wet days
Daylight
12.0–12.0 h
shortest–longest
Elevation
2,962 m
0.8°N
Clearest
Aug
83% cloud

Tulcán is city in Ecuador, capital of the Carchi Province.

Density
5,767/km²
people per km²
Founded
1535

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

Tulcán 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 early August to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Tulcán stay fairly even through the year, without a distinct hot or cool season. The warmest month is November, with an average high of 15°C and low of 7°C; the coolest is July, with an average low of 6°C and high of 13°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan157
Feb157
Mar157
Apr157
May147
Jun146
Jul136
Aug146
Sep156
Oct157
Nov157
Dec157

Average hourly temperature in Tulcán

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

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

Tulcán 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
Jan15° / 22027.5122.6
Feb15° / 20524.9122.6
Mar15° / 25129.4122.4
Apr15° / 25829.2122.3
May14° / 20029.8122.3
Jun14° / 16027.4122.2
Jul13° / 14727122.2
Aug14° / 9422.7122.6
Sep15° / 10921.9122.9
Oct15° / 23027.4122.7
Nov15° / 29028122.5
Dec15° / 26929.1122.5

Chance of rain

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

Tulcán gets about 2432 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 4.6 months, from around Feb 16 to Jul 5, peaking in April at about 98% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 2.

November is the wettest month by volume, with 290 mm over about 28 wet days; August is the driest, with 94 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetApr 18 · 98%Sep 2 · 68%
Rain on a day (%)Rain days
Jan8928
Feb8925
Mar9429
Apr9729
May9630
Jun9127
Jul8627
Aug7423
Sep7322
Oct8827
Nov9328
Dec9329

Monthly rainfall

Over a full year, Tulcán collects about 2432 mm of rain across 324 wet days — roughly 203 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 290 mm, while August is the driest at just 94 mm. The three wettest months alone bring about 34% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec22020525125820016014794109230290269
Rainfall (mm)Rain days
Jan22028
Feb20525
Mar25129
Apr25829
May20030
Jun16027
Jul14727
Aug9423
Sep10922
Oct23027
Nov29028
Dec26929

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

The clearer part of the year begins around July 1 and lasts for 3.8 months, ending around October 24. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 8% of the time on average.

The cloudier part of the year begins around February 14 and lasts for 4.5 months, ending around June 30. The cloudiest month is April, when it is overcast or mostly cloudy 99% 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%JanFebMarAprMayJunJulAugSepOctNovDecSep 9 · 9%Apr 28 · 0%mostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan595
Feb397
Mar199
Apr199
May199
Jun298
Jul595
Aug892
Sep892
Oct595
Nov397
Dec496

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, Tulcán barely changes through the year: days stay near 12 hours of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.06:216:19
Feb12.06:266:25
Mar12.06:216:20
Apr12.06:116:12
May12.06:066:08
Jun12.06:106:13
Jul12.06:156:18
Aug12.06:146:16
Sep12.06:056:05
Oct12.05:565:55
Nov12.05:575:55
Dec12.06:086:06

Sunny days

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

Tulcán 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 151 daysJan 10 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar0Gloomy
Apr0Gloomy
May0Gloomy
Jun0Gloomy
Jul0Gloomy
Aug0Gloomy
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 Tulcán, 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 (%)
Jan100
Feb100
Mar100
Apr100
May100
Jun100
Jul100
Aug100
Sep100
Oct100
Nov100
Dec100

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 Tulcán is typically calm, near 5 km/h, and varies little with the seasons.

The windier part of the year lasts 4.6 months, from around May 15 to Oct 2. The windiest month is August, averaging about 8 km/h (calm).

The calmer part of the year runs from around Oct 3 to May 14, with November the calmest month at about 4 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeAug 2 · 8 km/hNov 16 · 4 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar4calm
Apr5calm
May5calm
Jun7calm
Jul8calm
Aug8calm
Sep6calm
Oct5calm
Nov4calm
Dec4calm

Best time to visit Tulcán

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late December, Tulcán 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. In Tulcán it holds close to 3.0 all year, so any month is about as good as another for general outdoor tourist activities.

0246810JanFebMarAprMayJunJulAugSepOctNovDectravel scoretemperaturecloudsprecipitation

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
Jan2.6poor
Feb2.6poor
Mar2.4poor
Apr2.3poor
May2.3poor
Jun2.2poor
Jul2.2poor
Aug2.6poor
Sep2.9poor
Oct2.7poor
Nov2.5poor
Dec2.5poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Tulcán rarely gets warm enough to lift this score — no time of year really suits hot-weather activities here.

024681012JanFebMarAprMayJunJulAugSepOctNovDectemperaturecloudsprecipitation

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 Tulcán, 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.

Tulcán packs about the same all year — highs hold near 15°C. Across the year the things worth having are a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In November, Tulcán sees daytime highs around 15°C and nights near 7°C. Pack rain gear. Worth having: a warm layer. About 28 days see rain.

UV index (midday) in Tulcán 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 Tulcán peaks around February 22 at about 18 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 20 at about 13 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 18Jul 20UV 13
UV index (midday)Level
Jan17Extreme
Feb18Extreme
Mar18Extreme
Apr16Extreme
May16Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep15Extreme
Oct15Extreme
Nov14Extreme
Dec14Extreme

Average hourly UV index in Tulcán

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
Apr8.57
May8.56.5
Jun86.5
Jul86.5
Aug86.5
Sep8.56.5
Oct8.56.5
Nov86.5
Dec86.5

Air quality in Tulcán 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 Tulcán is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (June, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodSep 1618 µg/m³Jun 2310 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar14Moderate
Apr13Moderate
May11Good
Jun10Good
Jul10Good
Aug13Moderate
Sep19Moderate
Oct12Moderate
Nov11Good
Dec12Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Tulcán 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. Tulcán banks about 257 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around November.

0100200300400JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan29
Feb28
Mar33
Apr31
May24
Jun3
Jul0
Aug0
Sep9
Oct29
Nov37
Dec33

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.

Tulcán receives about 4.5 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.2 and 5.1 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightSep 135.1 kWhJun 184.2 kWh
Solar energy (kWh/m²)Level
Jan4.5Bright
Feb4.6Bright
Mar4.5Bright
Apr4.3Bright
May4.2Bright
Jun4.2Bright
Jul4.3Bright
Aug4.8Bright
Sep5.1Bright
Oct4.8Bright
Nov4.4Bright
Dec4.3Bright

Where is Tulcán?

Tulcán sits at 0.8°N, 77.7°W, 2,962 m above sea level, in Ecuador. The nearest listed city is Ipiales, 9.0 km away.

Topography around Tulcán

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

Within 3 km, the terrain around Tulcán has only modest variations in elevation — a maximum elevation change of 208 m around an average of 2,927 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,116 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,525 m.

The land around Tulcán is covered by grassland (37%), artificial surfaces (23%) and trees (21%) within 3 km, grassland (48%) and trees (38%) within 16 km, and trees (74%) and grassland (23%) within 80 km.

3 km
208 m
16 km
1,116 m
80 km
4,525 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Ipiales 9.0 km · Pupiales 11 km · Túquerres 32 km · Samaniego 60 km · Pasto 66 km · Ibarra 69 km · Atuntaqui 78 km · Otavalo 88 km

Ecuador travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$7,125
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
70%
of population, 2024
Homicide rate
45.7
per 100k, 2023
Road deaths
20.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 466
Religion
Roman Catholic 68%Protestant 19%none 8%other 2%

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 Tulcán (0.8124°, -77.7171°, elevation 2,962 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).