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Monthly climate in Merlo, San Luis, Argentina

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Merlo features a cold semi-arid climate (BSk).Temperatures typically range between 7 °C (46 °F) and 21 °C (71 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 729 mm (28.7 inches) and receives 98 rainy days on the 1 mm (0.04 inches) threshold annually.Merlo enjoys an average of 3779 hours of sunshine throughout the year, and daylight varies from 10 hours 2 minutes to 14 hours 13 minutes per day.

Monthly average temperatures in Merlo, San Luis, Argentina §

The warmest months in Merlo are January, February and December, with daily mean temperatures ranging from 20 to 21 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 7 to 10 °C (46 - 51 °F) throughout the day. On average each year, Merlo experiences 101 days above 25 °C (77.0 °F) and 20 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Merlo, San Luis, Argentina.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
(97°F)		 33°C
(92°F)		 31°C
(88°F)		 28°C
(83°F)		 28°C
(83°F)		 23°C
(74°F)		 24°C
(76°F)		 28°C
(83°F)		 32°C
(91°F)		 36°C
(96°F)		 32°C
(91°F)		 38°C
(100°F)
Mean maximum 33°C
(91°F)		 31°C
(89°F)		 30°C
(86°F)		 27°C
(80°F)		 24°C
(75°F)		 20°C
(68°F)		 23°C
(73°F)		 27°C
(81°F)		 31°C
(87°F)		 32°C
(91°F)		 32°C
(89°F)		 34°C
(94°F)
Average high 27°C
(81°F)		 25°C
(78°F)		 24°C
(75°F)		 21°C
(71°F)		 18°C
(64°F)		 15°C
(59°F)		 14°C
(58°F)		 18°C
(65°F)		 20°C
(69°F)		 22°C
(73°F)		 25°C
(77°F)		 27°C
(80°F)
Daily mean 21°C
(71°F)		 20°C
(67°F)		 18°C
(64°F)		 15°C
(60°F)		 11°C
(53°F)		 8°C
(46°F)		 7°C
(46°F)		 10°C
(51°F)		 13°C
(56°F)		 16°C
(60°F)		 18°C
(65°F)		 21°C
(69°F)
Average low 16°C
(61°F)		 15°C
(59°F)		 13°C
(55°F)		 11°C
(51°F)		 7°C
(44°F)		 2°C
(37°F)		 2°C
(36°F)		 4°C
(39°F)		 7°C
(44°F)		 9°C
(49°F)		 12°C
(55°F)		 15°C
(59°F)
Mean minimum 11°C
(51°F)		 8°C
(47°F)		 6°C
(42°F)		 4°C
(39°F)		 -1°C
(31°F)		 -3°C
(26°F)		 -5°C
(23°F)		 -4°C
(25°F)		 -1°C
(31°F)		 2°C
(36°F)		 6°C
(44°F)		 9°C
(48°F)
Minimum 8°C
(46°F)		 5°C
(42°F)		 2°C
(36°F)		 1°C
(35°F)		 -3°C
(26°F)		 -6°C
(21°F)		 -7°C
(20°F)		 -6°C
(22°F)		 -3°C
(28°F)		 1°C
(34°F)		 4°C
(39°F)		 7°C
(44°F)

Compare climate in Merlo with other places

Compare temperature, precipitation, sunshine, UV index in Merlo, San Luis, Argentina with other places around the world.

Monthly average precipitation in Merlo, San Luis, Argentina §

Merlo usually has the most precipitation in January, February and November, with an average of 13 rainy days and 118 mm (4.7 inches) of precipitation per month.The driest months in Merlo are June, July and August. On average, 9 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Merlo, San Luis, Argentina.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) 113 (4.4) 122 (4.8) 91 (3.6) 68 (2.7) 23 (0.9) 14 (0.5) 10 (0.4) 5 (0.2) 29 (1.1) 46 (1.8) 121 (4.8) 89 (3.5)
Average precipitation days (≥ 1 mm) 13 14 12 7 5 2 3 2 4 9 14 13

Monthly sunshine hours in Merlo, San Luis, Argentina §

The sunniest months in Merlo are October, November and December, when the sun shines an average of 11 hours 57 minutes a day.Least sunny months in Merlo: May, June and July receive an average of 8 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Merlo, San Luis, Argentina.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 310 327 330 278 263 264 276 312 314 345 363 391
Mean daily daylight hours 13h 58m 13h 12m 12h 14m 11h 14m 10h 26m 10h 2m 10h 15m 10h 58m 11h 54m 12h 54m 13h 46m 14h 13m

Solar UV radiation in Merlo, San Luis, Argentina §

Merlo experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Merlo UV Index data.

Average daily maximum UV levels by month for Merlo, San Luis, Argentina.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) 15 14 12 8 6 4 5 7 9 12 14 15