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Monthly climate in San Antonio, Colombia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Antonio features a tropical savanna climate (Aw). Temperatures typically range between 28 °C (82 °F) and 30 °C (87 °F) through the year, but rarely can drop to 22 °C (72 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 918 mm (36.2 inches) and receives 160 rainy days on the 1 mm (0.04 inches) threshold annually. San Antonio enjoys an average of 3358 hours of sunshine throughout the year, and daylight varies from 11 hours 32 minutes to 12 hours 40 minutes per day.

Monthly average temperatures in San Antonio, Colombia

The warmest months in San Antonio are January, February and March, with daily mean temperatures ranging from 30 to 30 °C (86 - 87 °F) throughout the day. The coldest temperatures usually occur in September, October and November, when daily mean temperatures range from 28 to 28 °C (82 - 83 °F) throughout the day. On average each year, San Antonio experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in San Antonio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum40°C
(104°F)		40°C
(105°F)		40°C
(105°F)		40°C
(105°F)		40°C
(105°F)		39°C
(102°F)		41°C
(106°F)		39°C
(103°F)		39°C
(102°F)		38°C
(101°F)		38°C
(100°F)		38°C
(101°F)
Mean maximum39°C
(103°F)		39°C
(103°F)		39°C
(103°F)		39°C
(102°F)		37°C
(98°F)		36°C
(97°F)		39°C
(102°F)		37°C
(100°F)		36°C
(97°F)		35°C
(95°F)		36°C
(96°F)		37°C
(99°F)
Average high36°C
(98°F)		38°C
(100°F)		37°C
(99°F)		35°C
(95°F)		33°C
(92°F)		33°C
(92°F)		35°C
(95°F)		34°C
(93°F)		33°C
(91°F)		32°C
(90°F)		33°C
(91°F)		35°C
(96°F)
Daily mean30°C
(86°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		29°C
(84°F)		29°C
(84°F)		30°C
(85°F)		29°C
(84°F)		28°C
(83°F)		28°C
(82°F)		28°C
(83°F)		29°C
(85°F)
Average low25°C
(77°F)		25°C
(78°F)		25°C
(78°F)		26°C
(79°F)		26°C
(78°F)		26°C
(78°F)		26°C
(79°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)
Mean minimum23°C
(74°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)
Minimum22°C
(72°F)		23°C
(73°F)		23°C
(73°F)		24°C
(76°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)

Compare climate in San Antonio with other places

Compare temperature, precipitation, sunshine, UV index in San Antonio, Colombia with other places around the world.

Monthly average precipitation in San Antonio, Colombia

San Antonio usually has the most precipitation in May, September and October, with an average of 22 rainy days and 142 mm (5.6 inches) of precipitation per month. The driest months in San Antonio are January, February and March. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Antonio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)7 (0.3)3 (0.1)19 (0.7)57 (2.3)152 (6.0)98 (3.9)84 (3.3)117 (4.6)129 (5.1)143 (5.6)90 (3.5)19 (0.7)
Average precipitation days (≥ 1 mm)20312231916192124165

Monthly sunshine hours in San Antonio, Colombia

The sunniest months in San Antonio are February, March and December, when the sun shines an average of 10 hours 33 minutes a day. Least sunny months in San Antonio: May, June and September receive an average of 8 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Antonio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours264307330288251256274257254269280322
Mean daily daylight hours11h 36m11h 48m12h 3m12h 20m12h 34m12h 40m12h 37m12h 25m12h 9m11h 52m11h 39m11h 32m

Solar UV radiation in San Antonio, Colombia

San Antonio experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly San Antonio UV Index data.

Average daily maximum UV levels by month for San Antonio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111214141413121313131110