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Monthly climate in San Marcos, San Salvador, El Salvador

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification San Marcos features a tropical savanna climate (Aw).Temperatures typically range between 25 °C (78 °F) and 27 °C (81 °F) through the year, but rarely can drop to 15 °C (59 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 1678 mm (66.1 inches) and receives 179 rainy days on the 1 mm (0.04 inches) threshold annually.San Marcos enjoys an average of 3662 hours of sunshine throughout the year, and daylight varies from 11 hours 19 minutes to 12 hours 54 minutes per day.

Monthly average temperatures in San Marcos, San Salvador, El Salvador §

The warmest months in San Marcos are March, April and July, with daily mean temperatures ranging from 27 to 27 °C (80 - 81 °F) throughout the day. The coldest temperatures usually occur in January, October and December, when daily mean temperatures range from 25 to 25 °C (78 - 78 °F) throughout the day. On average each year, San Marcos experiences 327 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 Marcos, San Salvador, El Salvador.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 36°C
(96°F)		 38°C
(101°F)		 37°C
(99°F)		 38°C
(100°F)		 36°C
(97°F)		 35°C
(96°F)		 35°C
(96°F)		 35°C
(95°F)		 34°C
(93°F)		 34°C
(93°F)		 34°C
(94°F)		 35°C
(95°F)
Mean maximum 35°C
(95°F)		 36°C
(98°F)		 36°C
(98°F)		 37°C
(98°F)		 35°C
(95°F)		 33°C
(91°F)		 35°C
(95°F)		 35°C
(94°F)		 33°C
(92°F)		 33°C
(91°F)		 33°C
(92°F)		 34°C
(94°F)
Average high 32°C
(90°F)		 33°C
(92°F)		 34°C
(94°F)		 33°C
(92°F)		 32°C
(89°F)		 30°C
(87°F)		 32°C
(91°F)		 32°C
(89°F)		 31°C
(88°F)		 30°C
(87°F)		 31°C
(89°F)		 32°C
(90°F)
Daily mean 25°C
(78°F)		 26°C
(79°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(79°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)
Average low 20°C
(68°F)		 21°C
(69°F)		 21°C
(71°F)		 22°C
(72°F)		 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(70°F)		 20°C
(69°F)
Mean minimum 17°C
(62°F)		 18°C
(65°F)		 19°C
(66°F)		 20°C
(69°F)		 21°C
(70°F)		 21°C
(71°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(70°F)		 20°C
(69°F)		 19°C
(67°F)		 17°C
(63°F)
Minimum 15°C
(59°F)		 16°C
(60°F)		 17°C
(64°F)		 19°C
(67°F)		 20°C
(69°F)		 21°C
(69°F)		 21°C
(69°F)		 20°C
(69°F)		 20°C
(69°F)		 20°C
(67°F)		 18°C
(64°F)		 16°C
(61°F)

Compare climate in San Marcos with other places

Compare temperature, precipitation, sunshine, UV index in San Marcos, San Salvador, El Salvador with other places around the world.

Monthly average precipitation in San Marcos, San Salvador, El Salvador §

San Marcos usually has the most precipitation in June, September and October, with an average of 28 rainy days and 288 mm (11.3 inches) of precipitation per month.The driest months in San Marcos are January, February and March. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Marcos, San Salvador, El Salvador.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 3 (0.1) 4 (0.2) 5 (0.2) 59 (2.3) 269 (10.6) 292 (11.5) 157 (6.2) 252 (9.9) 301 (11.9) 272 (10.7) 58 (2.3) 7 (0.3)
Average precipitation days (≥ 1 mm) 0 0 1 12 26 27 21 25 29 28 9 1

Monthly sunshine hours in San Marcos, San Salvador, El Salvador §

The sunniest months in San Marcos are March, July and December, when the sun shines an average of 10 hours 33 minutes a day.Least sunny months in San Marcos: January, June and October receive an average of 9 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Marcos, San Salvador, El Salvador.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 262 292 327 318 313 284 328 313 298 289 308 325
Mean daily daylight hours 11h 24m 11h 41m 12h 3m 12h 26m 12h 45m 12h 54m 12h 49m 12h 32m 12h 10m 11h 47m 11h 28m 11h 19m

Solar UV radiation in San Marcos, San Salvador, El Salvador §

San Marcos 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 Marcos UV Index data.

Average daily maximum UV levels by month for San Marcos, San Salvador, El Salvador.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 11 12 14 14 14 14 13 13 13 13 10 9