Pasto climate

Name: Pasto
Address: CO

Pasto is warmest in September, with average highs of 19 °C, and coldest in August, when nights average 10 °C. November is the wettest month (263 mm) and August the driest (66 mm). Figures are 1991–2020 climate normals.

Colombia · population 392,930 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month September 19 °C
Coldest month August 10 °C
Driest month August 66 mm
Wettest month November 263 mm
Least cloud August 78 % cloud
Hottest on record September 22 °C
Coldest on record November 6.2 °C

What to expectPasto through the year

Pasto changes little through the year. Average daily highs stay between 19 and 19 °C, so no month stands out as a season in the way it would further from the equator.

Rain is strongly seasonal. November averages 263 mm against 66 mm in August — 4.0 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	17.7 °C	191 mm	81 %
February	18.0 °C	203 mm	86 %
March	18.0 °C	261 mm	91 %
April	18.0 °C	249 mm	91 %
May	17.9 °C	203 mm	90 %
June	17.8 °C	119 mm	86 %
July	17.8 °C	94 mm	81 %
August	18.6 °C	66 mm	78 %
September	19.0 °C	107 mm	82 %
October	18.2 °C	209 mm	87 %
November	17.4 °C	263 mm	91 %
December	17.5 °C	247 mm	85 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low
January	17.7 °C	11.0 °C	13.6 °C	22.1 °C	6.3 °C
February	18.0 °C	11.2 °C	13.8 °C	22.3 °C	6.5 °C
March	18.0 °C	11.3 °C	13.9 °C	21.3 °C	7.1 °C
April	18.0 °C	11.4 °C	14.0 °C	21.0 °C	7.2 °C
May	17.9 °C	11.4 °C	14.0 °C	21.1 °C	7.9 °C
June	17.8 °C	11.0 °C	13.8 °C	20.6 °C	7.4 °C
July	17.8 °C	10.5 °C	13.6 °C	20.5 °C	6.4 °C
August	18.6 °C	10.3 °C	13.9 °C	21.7 °C	7.2 °C
September	19.0 °C	10.4 °C	14.1 °C	22.4 °C	7.1 °C
October	18.2 °C	10.7 °C	13.8 °C	21.4 °C	7.2 °C
November	17.4 °C	10.9 °C	13.4 °C	20.3 °C	6.2 °C
December	17.5 °C	11.0 °C	13.6 °C	21.4 °C	7.5 °C

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	191 mm	22	12 h/day	81 %	84 %	8.5 km/h
February	203 mm	23	12 h/day	86 %	84 %	8.4 km/h
March	261 mm	28	12 h/day	91 %	84 %	8.2 km/h
April	249 mm	28	12 h/day	91 %	84 %	8.0 km/h
May	203 mm	27	12 h/day	90 %	82 %	8.7 km/h
June	119 mm	23	12 h/day	86 %	78 %	10 km/h
July	94 mm	21	12 h/day	81 %	74 %	11 km/h
August	66 mm	16	12 h/day	78 %	70 %	12 km/h
September	107 mm	20	12 h/day	82 %	73 %	10 km/h
October	209 mm	25	12 h/day	87 %	81 %	8.7 km/h
November	263 mm	27	12 h/day	91 %	87 %	8.2 km/h
December	247 mm	26	12 h/day	85 %	86 %	8.3 km/h

How Pasto compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Pasto	19 °C	10 °C	2,212 mm	0
Ibarra · Ecuador	22 °C	10.0 °C	1,609 mm	2
Popayán · Colombia	22 °C	13 °C	6,366 mm	2
Florencia · Colombia	30 °C	20 °C	2,165 mm	345
Quito · Ecuador	18 °C	8.7 °C	2,876 mm	0
Cali · Colombia	25 °C	17 °C	3,225 mm	146
Buenaventura · Colombia	27 °C	22 °C	27,443 mm	266

Where Pasto ranks

Ranking	Position	Value
The coolest places in South America in November	9thof 50	17 °C
The coolest places in South America in February	10thof 50	18 °C
The coolest places in South America in December	11thof 50	18 °C
The coolest places in South America in January	13thof 50	18 °C
The coolest places in South America in March	13thof 50	18 °C
The coolest places in South America in April	16thof 50	18 °C

Planning a trip? See the best time to visit Pasto.

QuestionsCommon questions about Pasto’s climate

When is the best time to visit Pasto?

That depends on what you want, so the honest answer is a comparison rather than a single month. April, May, September sit closest to 20 °C on average, September is the warmest month and August the driest. The month-by-month table above has the full picture.

How hot does Pasto get?

In September, the warmest month, daily highs average 19 °C. The highest value in the 1991–2020 record is 22 °C.

How cold does it get in winter?

Nights average 10 °C in August, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Pasto?

November, averaging 263 mm over 27 days with rain. The driest month is August with 66 mm. The year as a whole averages 2,212 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Pasto rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.