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Monthly climate in La Reforma, San Marcos, Guatemala

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification La Reforma features a tropical savanna climate (Aw).Temperatures typically range between 19 °C (67 °F) and 21 °C (70 °F) through the year, but rarely can drop to 12 °C (53 °F) or can rise to as high as 28 °C (83 °F).The average annual precipitation amounts to about 4234 mm (166.7 inches) and receives 317 rainy days on the 1 mm (0.04 inches) threshold annually.La Reforma enjoys an average of 3532 hours of sunshine throughout the year, and daylight varies from 11 hours 15 minutes to 12 hours 58 minutes per day.

Monthly average temperatures in La Reforma, San Marcos, Guatemala §

The warmest months in La Reforma are May, July and August, with daily mean temperatures ranging from 21 to 21 °C (70 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 19 to 20 °C (67 - 68 °F) throughout the day. On average each year, La Reforma experiences 126 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 La Reforma, 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 27°C
(81°F)		 28°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 28°C
(83°F)		 28°C
(82°F)		 28°C
(82°F)		 27°C
(80°F)		 26°C
(79°F)
Mean maximum 25°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(82°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 26°C
(80°F)		 26°C
(79°F)		 25°C
(78°F)
Average high 24°C
(75°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)
Daily mean 19°C
(67°F)		 20°C
(68°F)		 20°C
(68°F)		 21°C
(69°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(69°F)		 21°C
(69°F)		 20°C
(69°F)		 20°C
(68°F)
Average low 15°C
(60°F)		 15°C
(60°F)		 16°C
(61°F)		 17°C
(63°F)		 18°C
(65°F)		 18°C
(65°F)		 18°C
(64°F)		 18°C
(64°F)		 18°C
(64°F)		 18°C
(64°F)		 17°C
(63°F)		 16°C
(61°F)
Mean minimum 13°C
(55°F)		 13°C
(56°F)		 13°C
(55°F)		 15°C
(58°F)		 16°C
(62°F)		 17°C
(62°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)
Minimum 12°C
(53°F)		 12°C
(53°F)		 12°C
(54°F)		 14°C
(57°F)		 15°C
(59°F)		 16°C
(61°F)		 15°C
(59°F)		 15°C
(59°F)		 16°C
(60°F)		 15°C
(59°F)		 14°C
(58°F)		 12°C
(54°F)

Compare climate in La Reforma with other places

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

Monthly average precipitation in La Reforma, San Marcos, Guatemala §

La Reforma usually has the most precipitation in May, August and September, with an average of 30 rainy days and 631 mm (24.9 inches) of precipitation per month.The driest months in La Reforma are January, February and December. On average, 62 mm (2.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in La Reforma, 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) 51 (2.0) 62 (2.5) 134 (5.3) 248 (9.8) 702 (27.6) 561 (22.1) 461 (18.2) 588 (23.1) 604 (23.8) 528 (20.8) 224 (8.8) 71 (2.8)
Average precipitation days (≥ 1 mm) 15 18 28 27 31 29 31 30 30 31 28 19

Monthly sunshine hours in La Reforma, San Marcos, Guatemala §

The sunniest months in La Reforma are March, April and December, when the sun shines an average of 10 hours 19 minutes a day.Least sunny months in La Reforma: January, June and October receive an average of 8 hours 41 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in La Reforma, 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 253 285 322 312 303 271 311 301 282 275 297 314
Mean daily daylight hours 11h 20m 11h 39m 12h 3m 12h 27m 12h 48m 12h 58m 12h 52m 12h 34m 12h 11m 11h 46m 11h 25m 11h 15m

Solar UV radiation in La Reforma, San Marcos, Guatemala §

La Reforma experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 14 - 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 La Reforma UV Index data.

Average daily maximum UV levels by month for La Reforma, 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 14 15 14 14 14 14 14 13 11 9