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Monthly climate in Mejillones, Antofagasta, Chile

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Mejillones features a cold desert climate (BWk).Temperatures typically range between 15 °C (59 °F) and 21 °C (69 °F) through the year, but rarely can drop to 11 °C (52 °F) or can rise to as high as 26 °C (78 °F).The average annual precipitation amounts to about 93 mm (3.7 inches) and receives 10 rainy days on the 1 mm (0.04 inches) threshold annually.Mejillones enjoys an average of 4079 hours of sunshine throughout the year, and daylight varies from 10 hours 43 minutes to 13 hours 31 minutes per day.

Monthly average temperatures in Mejillones, Antofagasta, Chile §

The warmest months in Mejillones are January, February and March, with daily mean temperatures ranging from 20 to 21 °C (68 - 69 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 15 to 15 °C (59 - 59 °F) throughout the day. On average each year, Mejillones experiences 1 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 Mejillones, Antofagasta, Chile.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
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 22°C
(72°F)		 22°C
(71°F)		 20°C
(68°F)		 19°C
(66°F)		 19°C
(66°F)		 18°C
(65°F)		 20°C
(67°F)		 21°C
(70°F)		 23°C
(73°F)
Mean maximum 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 21°C
(70°F)		 20°C
(68°F)		 19°C
(66°F)		 18°C
(65°F)		 18°C
(65°F)		 18°C
(64°F)		 19°C
(66°F)		 20°C
(68°F)		 22°C
(71°F)
Average high 22°C
(72°F)		 22°C
(72°F)		 21°C
(71°F)		 20°C
(68°F)		 18°C
(65°F)		 17°C
(63°F)		 17°C
(62°F)		 16°C
(62°F)		 17°C
(62°F)		 17°C
(64°F)		 19°C
(66°F)		 20°C
(69°F)
Daily mean 20°C
(69°F)		 21°C
(69°F)		 20°C
(68°F)		 18°C
(65°F)		 17°C
(62°F)		 16°C
(60°F)		 15°C
(59°F)		 15°C
(59°F)		 15°C
(59°F)		 15°C
(60°F)		 17°C
(63°F)		 19°C
(66°F)
Average low 19°C
(66°F)		 19°C
(66°F)		 18°C
(65°F)		 17°C
(62°F)		 15°C
(60°F)		 14°C
(58°F)		 13°C
(56°F)		 13°C
(56°F)		 13°C
(56°F)		 14°C
(57°F)		 15°C
(60°F)		 17°C
(63°F)
Mean minimum 17°C
(64°F)		 18°C
(64°F)		 16°C
(62°F)		 16°C
(60°F)		 14°C
(57°F)		 13°C
(56°F)		 12°C
(54°F)		 12°C
(54°F)		 12°C
(54°F)		 13°C
(56°F)		 14°C
(58°F)		 16°C
(61°F)
Minimum 16°C
(61°F)		 16°C
(62°F)		 15°C
(60°F)		 14°C
(58°F)		 13°C
(56°F)		 13°C
(55°F)		 11°C
(52°F)		 12°C
(53°F)		 11°C
(52°F)		 13°C
(55°F)		 14°C
(57°F)		 15°C
(60°F)

Compare climate in Mejillones with other places

Compare temperature, precipitation, sunshine, UV index in Mejillones, Antofagasta, Chile with other places around the world.

Monthly average precipitation in Mejillones, Antofagasta, Chile §

Mejillones usually has the most precipitation in June, July and August, with an average of 2 rainy days and 13 mm (0.5 inches) of precipitation per month.The driest months in Mejillones are January, February and March. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mejillones, Antofagasta, Chile.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) 4 (0.1) 1 (0.1) 3 (0.1) 7 (0.3) 10 (0.4) 13 (0.5) 14 (0.5) 11 (0.4) 10 (0.4) 8 (0.3) 6 (0.3) 5 (0.2)
Average precipitation days (≥ 1 mm) 0 0 0 0 1 3 4 1 1 0 0 0

Monthly sunshine hours in Mejillones, Antofagasta, Chile §

The sunniest months in Mejillones are October, November and December, when the sun shines an average of 12 hours 19 minutes a day.Least sunny months in Mejillones: January, June and July receive an average of 10 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mejillones, Antofagasta, Chile.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 311 337 358 328 317 300 314 334 342 372 373 388
Mean daily daylight hours 13h 21m 12h 50m 12h 10m 11h 31m 10h 59m 10h 43m 10h 51m 11h 20m 11h 57m 12h 38m 13h 13m 13h 31m

Solar UV radiation in Mejillones, Antofagasta, Chile §

Mejillones experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure.May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Mejillones UV Index data.

Average daily maximum UV levels by month for Mejillones, Antofagasta, Chile.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 15 13 10 8 6 7 9 11 14 14 15