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Monthly climate in Tajumulco, San Marcos, Guatemala

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Tajumulco features a tropical savanna climate (Aw).Temperatures typically range between 18 °C (64 °F) and 20 °C (68 °F) through the year, but rarely can drop to 9 °C (48 °F) or can rise to as high as 28 °C (82 °F).The average annual precipitation amounts to about 2824 mm (111.2 inches) and receives 288 rainy days on the 1 mm (0.04 inches) threshold annually.Tajumulco enjoys an average of 3447 hours of sunshine throughout the year, and daylight varies from 11 hours 14 minutes to 12 hours 59 minutes per day.

Monthly average temperatures in Tajumulco, San Marcos, Guatemala §

The warmest months in Tajumulco are May, June and July, with daily mean temperatures ranging from 20 to 20 °C (67 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 18 to 18 °C (64 - 65 °F) throughout the day. On average each year, Tajumulco experiences 52 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 Tajumulco, San Marcos, Guatemala.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 26°C
(79°F)		 27°C
(81°F)		 27°C
(81°F)		 28°C
(82°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(79°F)		 27°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(80°F)		 25°C
(78°F)
Mean maximum 25°C
(77°F)		 26°C
(79°F)		 26°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 25°C
(77°F)		 26°C
(78°F)		 26°C
(79°F)		 26°C
(78°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)
Average high 23°C
(74°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°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)
Daily mean 18°C
(64°F)		 18°C
(65°F)		 19°C
(66°F)		 19°C
(67°F)		 20°C
(68°F)		 20°C
(67°F)		 20°C
(68°F)		 19°C
(67°F)		 19°C
(67°F)		 19°C
(67°F)		 19°C
(66°F)		 18°C
(65°F)
Average low 13°C
(55°F)		 13°C
(56°F)		 14°C
(57°F)		 15°C
(59°F)		 16°C
(62°F)		 16°C
(61°F)		 15°C
(60°F)		 16°C
(60°F)		 16°C
(61°F)		 16°C
(61°F)		 15°C
(59°F)		 13°C
(56°F)
Mean minimum 10°C
(50°F)		 11°C
(52°F)		 11°C
(52°F)		 12°C
(55°F)		 14°C
(58°F)		 14°C
(58°F)		 13°C
(56°F)		 13°C
(56°F)		 14°C
(58°F)		 14°C
(57°F)		 12°C
(55°F)		 11°C
(52°F)
Minimum 9°C
(48°F)		 9°C
(48°F)		 10°C
(50°F)		 10°C
(51°F)		 13°C
(56°F)		 13°C
(56°F)		 12°C
(54°F)		 13°C
(55°F)		 13°C
(56°F)		 13°C
(55°F)		 11°C
(53°F)		 10°C
(51°F)

Compare climate in Tajumulco with other places

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

Monthly average precipitation in Tajumulco, San Marcos, Guatemala §

Tajumulco usually has the most precipitation in June, August and September, with an average of 30 rainy days and 450 mm (17.7 inches) of precipitation per month.The driest months in Tajumulco are January, February and December. On average, 42 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tajumulco, San Marcos, Guatemala.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) 39 (1.5) 34 (1.3) 77 (3.0) 131 (5.1) 395 (15.6) 481 (18.9) 272 (10.7) 434 (17.1) 436 (17.2) 360 (14.2) 114 (4.5) 52 (2.0)
Average precipitation days (≥ 1 mm) 9 12 22 25 31 29 30 31 30 30 23 16

Monthly sunshine hours in Tajumulco, San Marcos, Guatemala §

The sunniest months in Tajumulco are March, April and December, when the sun shines an average of 10 hours 19 minutes a day.Least sunny months in Tajumulco: January, June and October receive an average of 8 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tajumulco, San Marcos, Guatemala.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 253 286 322 311 296 250 299 289 265 260 295 315
Mean daily daylight hours 11h 20m 11h 38m 12h 3m 12h 28m 12h 48m 12h 59m 12h 53m 12h 35m 12h 11m 11h 46m 11h 25m 11h 14m

Solar UV radiation in Tajumulco, San Marcos, Guatemala §

Tajumulco experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 15 - 15, 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 Tajumulco UV Index data.

Average daily maximum UV levels by month for Tajumulco, San Marcos, Guatemala.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 13 15 15 15 15 15 14 14 13 11 10