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Weather & Climate in San Marcos, Colombia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Marcos has a warm climate with an average annual temperature of 82°F (28°C). Winters average 82°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 163 sunny days per year, below the national average of 205. Annual precipitation totals 103.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 82 feet.
Temperature
82°F Jan (28°C)
82°F Jul (28°C)
| Annual Average | 82.2°F |
| 52% above US avg | |
| January Average | 82°F (28°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 163 days/yr |
Geography
| Elevation | 82 ft (25 m) |
| Area | 351.6 sq mi (910.7 km²) |
| Population Density | 173/sq mi |
| Coordinates | 8.6597°N, 75.1281°W |
| Timezone | America/Bogota |
Precipitation & Snow
Air Quality
Earthquake History
63 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.
| Apr 15, 2020 | 13 km NNE of Pinillos, Colombia | M5.7 | 87 km | 53 km |
| Feb 23, 2022 | 26 km SW of Santa Rosa del Sur, Colombia | M5.5 | 135 km | 51 km |
| Sep 8, 2001 | 10 km NNE of Pueblo Nuevo, Colombia | M5.1 | 43 km | 33 km |
| Jul 7, 2010 | 9 km NNW of Ciénaga de Oro, Colombia | M5.0 | 67 km | 39 km |
| Aug 25, 2013 | 13 km NW of El Bagre, Colombia | M4.8 | 111 km | 26 km |
| Oct 31, 1995 | 30 km WNW of Cáceres, Colombia | M4.8 | 124 km | 49 km |
| Jun 30, 1991 | 16 km E of Nechí, Colombia | M4.8 | 83 km | 52 km |
| Mar 31, 2009 | 20 km WNW of San Carlos, Colombia | M4.8 | 89 km | 18 km |
| Jan 4, 1998 | 11 km NNW of Regidor, Colombia | M4.7 | 138 km | 33 km |
| Apr 18, 2001 | 9 km WSW of Nechí, Colombia | M4.7 | 74 km | 71 km |
| Nov 25, 1990 | 18 km NE of Caucasia, Colombia | M4.7 | 64 km | 74 km |
| Jun 25, 1995 | 25 km SW of Montelíbano, Colombia | M4.7 | 107 km | 33 km |
| Feb 24, 1994 | 19 km WNW of Ayapel, Colombia | M4.6 | 39 km | 48 km |
| Mar 4, 1990 | 25 km ENE of San Carlos, Colombia | M4.6 | 102 km | 79 km |
| Apr 7, 2023 | 7 km NNE of Los Córdobas, Colombia | M4.6 | 136 km | 48 km |
| May 6, 2024 | 8 km NE of Montelíbano, Colombia | M4.5 | 75 km | 54 km |
| Jul 3, 1996 | 13 km ENE of Valdivia, Colombia | M4.5 | 147 km | 53 km |
| Apr 16, 1993 | 12 km WSW of Ayapel, Colombia | M4.5 | 46 km | 27 km |
| Sep 23, 2017 | 8 km E of Plato, Colombia | M4.5 | 134 km | 46 km |
| Jan 19, 2025 | 8 km ENE of Zaragoza, Colombia | M4.5 | 132 km | 75 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 82°F (28°C) | 0.8 in | Driest |
| February | 83°F (28°C) | 0.9 in | |
| March | 84°F (29°C) | 1.9 in | Warmest |
| April | 83°F (29°C) | 6.4 in | |
| May | 82°F (28°C) | 10.5 in | |
| June | 82°F (28°C) | 12.2 in | |
| July | 82°F (28°C) | 13.8 in | |
| August | 82°F (28°C) | 15.4 in | Wettest |
| September | 82°F (28°C) | 14.5 in | |
| October | 81°F (27°C) | 14.8 in | Coldest |
| November | 82°F (28°C) | 9.4 in | |
| December | 82°F (28°C) | 2.6 in |
San Marcos has a seasonal temperature swing of 2°F / from 81°F in October to 84°F in March. Total annual precipitation is 103.1 inches, with August being the wettest month (15.4") and January the driest (0.8").