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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 rainforest climate (Af). Temperatures typically range between 17 °C (63 °F) and 19 °C (66 °F) through the year, but rarely can drop to 9 °C (49 °F) or can rise to as high as 28 °C (82 °F). The average annual precipitation amounts to about 2608 mm (102.7 inches) and receives 259 rainy days on the 1 mm (0.04 inches) threshold annually. San Antonio enjoys an average of 3501 hours of sunshine throughout the year, and daylight varies from 11 hours 53 minutes to 12 hours 20 minutes per day.

Monthly average temperatures in San Antonio, Colombia

The warmest months in San Antonio are July, August and September, with daily mean temperatures ranging from 18 to 19 °C (65 - 66 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 17 to 17 °C (63 - 64 °F) throughout the day. On average each year, San Antonio experiences 29 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
Maximum25°C
(78°F)		26°C
(79°F)		26°C
(79°F)		25°C
(78°F)		26°C
(79°F)		25°C
(77°F)		26°C
(79°F)		27°C
(81°F)		28°C
(82°F)		27°C
(81°F)		26°C
(79°F)		25°C
(77°F)
Mean maximum25°C
(77°F)		25°C
(77°F)		24°C
(76°F)		25°C
(78°F)		25°C
(77°F)		24°C
(76°F)		25°C
(78°F)		26°C
(79°F)		27°C
(81°F)		27°C
(80°F)		25°C
(77°F)		25°C
(76°F)
Average high22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(75°F)		24°C
(76°F)		25°C
(77°F)		23°C
(75°F)		23°C
(73°F)		23°C
(73°F)
Daily mean17°C
(63°F)		18°C
(64°F)		17°C
(64°F)		18°C
(64°F)		18°C
(64°F)		18°C
(64°F)		18°C
(65°F)		18°C
(65°F)		19°C
(66°F)		18°C
(65°F)		17°C
(64°F)		17°C
(64°F)
Average low13°C
(55°F)		13°C
(56°F)		14°C
(57°F)		14°C
(57°F)		14°C
(58°F)		14°C
(57°F)		14°C
(57°F)		14°C
(57°F)		14°C
(57°F)		14°C
(57°F)		13°C
(57°F)		13°C
(56°F)
Mean minimum10°C
(51°F)		11°C
(52°F)		11°C
(53°F)		12°C
(54°F)		13°C
(55°F)		13°C
(55°F)		12°C
(54°F)		12°C
(54°F)		12°C
(53°F)		12°C
(54°F)		11°C
(53°F)		11°C
(52°F)
Minimum9°C
(49°F)		10°C
(50°F)		10°C
(50°F)		12°C
(53°F)		12°C
(54°F)		12°C
(53°F)		11°C
(53°F)		11°C
(53°F)		11°C
(51°F)		12°C
(53°F)		11°C
(52°F)		10°C
(50°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 February, March and November, with an average of 24 rainy days and 387 mm (15.2 inches) of precipitation per month. The driest months in San Antonio are July, August and September. On average, 65 mm (2.6 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)190 (7.5)312 (12.3)394 (15.5)279 (11.0)190 (7.5)124 (4.9)76 (3.0)61 (2.4)58 (2.3)231 (9.1)455 (17.9)237 (9.3)
Average precipitation days (≥ 1 mm)162026252625241611222721

Monthly sunshine hours in San Antonio, Colombia

The sunniest months in San Antonio are July, August and September, when the sun shines an average of 10 hours 32 minutes a day. Least sunny months in San Antonio: January, February and November receive an average of 8 hours 46 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 hours253278296285290289323329315285257295
Mean daily daylight hours11h 54m11h 58m12h 4m12h 11m12h 17m12h 20m12h 18m12h 13m12h 7m12h 0m11h 55m11h 53m

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 16 - 18, which corresponds to the Extreme category of sun exposure. June, November and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 15. 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)151618181615151515161413