Pasto weather in December

In December, Pasto sees average daytime highs of 19°C and overnight lows near 10°C, with 222 mm of rain across 25.8 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 4th-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 1% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 54 min at the start of December to 11 h 54 min by month's end. Set against the rest of the year, December is Pasto's 5th-clearest and 11th-windiest month. For the whole year in context, see Pasto's year-round climate.

Daytime high
19°
9th warmest
Overnight low
10°
8th coldest
Rainfall
222 mm
25.8 wet days
Daylight
11 h 54 min
6:07 AM – 6:03 PM
Cloud cover
83%
5th clearest
Wind
5 km/h
11th windiest
Solar energy
4.69 kWh/m²
Travel score
3.7
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 December

Average highAverage lowShaded bands: 10–90% of days

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

A typical December day in Pasto reaches about 19°C in the afternoon and slips back to 10°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, December runs on par with November and on par with January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11910
21910
31910
41910
51910
61910
71910
81910
91910
101910
111910
121910
131910
141910
151910
161911
171911
181911
191911
201911
211911
221911
231911
241911
251911
261911
271911
281911
291910
301910
311910

Pasto weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 4th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5694
6694
7793
8793
9892
10892
11892
12892
13991
14991
15991
16991
171090
181090
191090
201189
211189
221189
231288
241288
251288
261387
271387
281486
291486
301585
311684

Chance of precipitation in December

Any precipitation

Pasto gets around 222 mm of rain over 25.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 83% and peaks near 88% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
188
288
388
487
587
687
787
886
986
1086
1186
1286
1385
1485
1585
1685
1785
1884
1984
2083
2183
2282
2381
2479
2578
2677
2776
2875
2975
3074
3174

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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 (%)
1973
2982
3982
4982
5982
6982
7982
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 54 min at the start of December to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:01 AM to 6:14 AM, and sunset from 5:57 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:015:57
211.96:015:57
311.96:025:58
411.96:025:58
511.96:025:58
611.96:035:59
711.96:035:59
811.96:046:00
911.96:046:00
1011.96:056:01
1111.96:056:01
1211.96:066:01
1311.96:066:02
1411.96:066:02
1511.96:076:03
1611.96:076:03
1711.96:086:04
1811.96:086:04
1911.96:096:05
2011.96:096:05
2111.96:106:06
2211.96:106:06
2311.96:116:06
2411.96:116:07
2511.96:126:07
2611.96:126:08
2711.96:136:08
2811.96:136:09
2911.96:136:09
3011.96:146:10
3111.96:146:10

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.69 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 — December's 4.69 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.9Bright
314.9Bright
Planning a trip in December

Is December a good time to visit Pasto?

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

3.7
Sightseeing
8th-best month of the year
1.5
Beach & pool
6th-best month of the year

December is a weaker month for outdoor sightseeing in Pasto.

What to pack for Pasto in December

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

In December, Pasto sees daytime highs around 19°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 26 days see rain.

rain gearsun protection

UV index in Pasto in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (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
December 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).