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Monthly climate in San Marcos, Nicaragua

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Marcos features a tropical savanna climate (Aw). Temperatures typically range between 26 °C (78 °F) and 28 °C (83 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1937 mm (76.3 inches) and receives 175 rainy days on the 1 mm (0.04 inches) threshold annually. San Marcos enjoys an average of 3753 hours of sunshine throughout the year, and daylight varies from 11 hours 25 minutes to 12 hours 48 minutes per day.

Monthly average temperatures in San Marcos, Nicaragua

The warmest months in San Marcos are March, April and May, with daily mean temperatures ranging from 27 to 28 °C (81 - 83 °F) throughout the day. The coldest temperatures usually occur in January, October and November, when daily mean temperatures range from 26 to 26 °C (78 - 79 °F) throughout the day. On average each year, San Marcos 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 Marcos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(92°F)		35°C
(94°F)		35°C
(95°F)		36°C
(97°F)		37°C
(98°F)		34°C
(94°F)		33°C
(91°F)		33°C
(92°F)		34°C
(94°F)		33°C
(91°F)		33°C
(91°F)		33°C
(91°F)
Mean maximum32°C
(90°F)		33°C
(92°F)		34°C
(94°F)		36°C
(96°F)		35°C
(96°F)		33°C
(91°F)		32°C
(91°F)		33°C
(91°F)		33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		32°C
(90°F)
Average high31°C
(88°F)		32°C
(89°F)		33°C
(91°F)		34°C
(93°F)		32°C
(90°F)		31°C
(87°F)		31°C
(87°F)		31°C
(87°F)		31°C
(88°F)		30°C
(86°F)		30°C
(87°F)		31°C
(87°F)
Daily mean26°C
(79°F)		26°C
(80°F)		27°C
(81°F)		28°C
(83°F)		27°C
(81°F)		26°C
(80°F)		27°C
(80°F)		26°C
(80°F)		26°C
(79°F)		26°C
(78°F)		26°C
(79°F)		26°C
(79°F)
Average low22°C
(71°F)		22°C
(71°F)		22°C
(72°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		22°C
(73°F)		22°C
(72°F)
Mean minimum19°C
(67°F)		19°C
(67°F)		20°C
(69°F)		22°C
(71°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		22°C
(72°F)		22°C
(71°F)		21°C
(70°F)		20°C
(69°F)
Minimum18°C
(65°F)		19°C
(66°F)		19°C
(66°F)		21°C
(70°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		21°C
(71°F)		21°C
(71°F)		21°C
(71°F)		20°C
(68°F)		20°C
(68°F)

Compare climate in San Marcos with other places

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

Monthly average precipitation in San Marcos, Nicaragua

San Marcos usually has the most precipitation in May, September and October, with an average of 25 rainy days and 349 mm (13.8 inches) of precipitation per month. The driest months in San Marcos are January, February and March. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Marcos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)5 (0.2)4 (0.1)5 (0.2)35 (1.4)311 (12.2)309 (12.1)142 (5.6)233 (9.2)310 (12.2)427 (16.8)141 (5.5)16 (0.6)
Average precipitation days (≥ 1 mm)1017222522262827142

Monthly sunshine hours in San Marcos, Nicaragua

The sunniest months in San Marcos are March, April and July, when the sun shines an average of 10 hours 53 minutes a day. Least sunny months in San Marcos: January, February and October receive an average of 9 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Marcos. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours264297333330315311338326305292308329
Mean daily daylight hours11h 29m11h 44m12h 3m12h 23m12h 40m12h 48m12h 43m12h 29m12h 9m11h 50m11h 33m11h 25m

Solar UV radiation in San Marcos, Nicaragua

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. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111314141414131313131010