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Monthly climate in La Union, Chile

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification La Union features a oceanic climate (Cfb). Temperatures typically range between 6 °C (44 °F) and 17 °C (62 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1423 mm (56.0 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually. La Union enjoys an average of 2974 hours of sunshine throughout the year, and daylight varies from 9 hours 19 minutes to 14 hours 58 minutes per day.

Monthly average temperatures in La Union, Chile

The warmest months in La Union are January, February and December, with daily mean temperatures ranging from 15 to 17 °C (59 - 62 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 6 to 7 °C (44 - 45 °F) throughout the day. On average each year, La Union experiences 22 days above 25 °C (77.0 °F) and 21 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 Union. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum32°C
(89°F)		37°C
(98°F)		30°C
(85°F)		25°C
(77°F)		21°C
(70°F)		15°C
(60°F)		15°C
(60°F)		17°C
(62°F)		21°C
(71°F)		24°C
(75°F)		25°C
(77°F)		30°C
(86°F)
Mean maximum29°C
(84°F)		31°C
(89°F)		27°C
(81°F)		22°C
(73°F)		18°C
(64°F)		13°C
(56°F)		14°C
(57°F)		15°C
(59°F)		19°C
(67°F)		22°C
(72°F)		25°C
(77°F)		27°C
(81°F)
Average high22°C
(72°F)		24°C
(75°F)		20°C
(69°F)		16°C
(62°F)		13°C
(56°F)		11°C
(51°F)		10°C
(50°F)		11°C
(52°F)		13°C
(56°F)		15°C
(59°F)		18°C
(64°F)		21°C
(69°F)
Daily mean16°C
(60°F)		17°C
(62°F)		14°C
(57°F)		11°C
(53°F)		9°C
(48°F)		7°C
(45°F)		6°C
(44°F)		7°C
(45°F)		8°C
(47°F)		10°C
(50°F)		13°C
(55°F)		15°C
(59°F)
Average low10°C
(50°F)		10°C
(51°F)		9°C
(48°F)		7°C
(45°F)		5°C
(42°F)		4°C
(40°F)		3°C
(38°F)		4°C
(39°F)		4°C
(39°F)		5°C
(42°F)		7°C
(45°F)		9°C
(48°F)
Mean minimum5°C
(40°F)		5°C
(41°F)		3°C
(38°F)		1°C
(34°F)		-1°C
(30°F)		-3°C
(28°F)		-3°C
(27°F)		-3°C
(28°F)		-1°C
(30°F)		-0°C
(32°F)		3°C
(38°F)		4°C
(40°F)
Minimum2°C
(35°F)		4°C
(39°F)		2°C
(36°F)		-1°C
(31°F)		-3°C
(27°F)		-4°C
(25°F)		-4°C
(25°F)		-5°C
(23°F)		-2°C
(29°F)		-1°C
(30°F)		1°C
(35°F)		3°C
(38°F)

Compare climate in La Union with other places

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

Monthly average precipitation in La Union, Chile

La Union usually has the most precipitation in June, July and August, with an average of 18 rainy days and 227 mm (8.9 inches) of precipitation per month. The driest months in La Union are January, February and December. On average, 36 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in La Union. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)27 (1.1)29 (1.1)75 (2.9)98 (3.9)157 (6.2)256 (10.1)199 (7.8)226 (8.9)118 (4.6)115 (4.5)73 (2.9)52 (2.0)
Average precipitation days (≥ 1 mm)5471217201718131596

Monthly sunshine hours in La Union, Chile

The sunniest months in La Union are February, March and December, when the sun shines an average of 10 hours 39 minutes a day. Least sunny months in La Union: June, July and August receive an average of 5 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in La Union. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours291310306224184137160180241281304353
Mean daily daylight hours14h 38m13h 35m12h 16m10h 57m9h 51m9h 19m9h 37m10h 35m11h 51m13h 10m14h 21m14h 58m

Solar UV radiation in La Union, Chile

La Union experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 12 - 14, which corresponds to the Extreme category of sun exposure. May, June and July are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly La Union UV Index data.

Average daily maximum UV levels by month for La Union. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1412964235791213