May weather forecast
Chile

May signifies the onset of winter in Chile, with a marked decrease in temperatures and an increase in rainfall across most regions.

In the northern Atacama Desert, the weather remains relatively consistent. Temperatures during May generally range from 10°C (50°F) to 20°C (68°F). Nights become cooler, often dropping to 5°C (41°F). As always, the desert skies remain predominantly clear, continuing to provide excellent conditions for stargazing.

Central Chile, which includes Santiago, Valparaiso, and the Central Valley, sees a more pronounced shift towards winter weather. Daytime temperatures decrease to between 10°C (50°F) and 18°C (64.4°F), while nighttime temperatures hover between 6°C (42.8°F) and 10°C (50°F). Rainfall becomes more frequent in May, although it is generally light to moderate, and there are still plenty of clear, sunny days. The landscapes of the Central Valley showcase beautiful autumn colours during this time.

In the southern regions, the winter weather sets in with average temperatures in cities like Puerto Montt in the Zona Sur and Punta Arenas in the Zona Austral falling to between 3°C (37.4°F) and 10°C (50°F). The days become noticeably shorter, and the weather conditions continue to be unpredictable, with a higher possibility of rain and strong winds.

In the high-altitude Andean region, May is characterized by colder weather, with temperatures dropping to between -2°C (28.4°F) and 8°C (46.4°F). Snowfall becomes increasingly common towards the end of the month, signifying the start of the ski season in the Andean resorts.

On Easter Island, May sees further cooling with temperatures ranging from 19°C (66.2°F) to 24°C (75.2°F). The island continues its trend towards drier conditions, though occasional rainfall can still occur, contributing to the lush, green landscapes characteristic of this remote island.

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• Santiago - May »
  On the first day of May in Santiago, Chile, sunrise is at 07:17 and sunset at 18:02. In Santiago, snow does not fall in January through May, August through December.
• Valparaíso - May »
  On the first day of May in Valparaíso sunrise is at 07:20 and sunset at 18:06. May through July, with an average relative humidity of 80%, are most humid months in Valparaíso, Chile.
• Concepción - May »
  In Concepción in May, during 10.8 rainfall days, 77mm (3.03") of precipitation is typically accumulated. In Concepción in May, during 10.8 rainfall days, 77mm (3.03") of precipitation is typically accumulated.
• La Serena - May »
  In May, the average sea temperature in La Serena is 15.3°C (59.5°F). May is the first month it rains in La Serena, Chile.
• Antofagasta - May »
  On the last day of the month, in Antofagasta sunrise is at 07:16 and sunset at 18:02 -04. March through December, with an average maximum UV index of 5, are months with the lowest UV index in Antofagasta, Chile.
• Temuco - May »
  On the last day of the month, in Temuco, sunrise is at 07:59 and sunset at 17:37 -04. In Temuco, Chile, in May, during 18 rainfall days, 186mm (7.32") of precipitation is typically accumulated.
• Rancagua - May »
  In May, in Rancagua, Chile, the rain falls for 6.6 days. In Rancagua, snow does not fall in January through June, August through December.
• Iquique - May »
  The months with the least sunshine in Iquique are January, February, April, May, July and December, with an average of 9.8h of sunshine. In May, Iquique experiences a minor shift in meteorological conditions with average high-temperatures marked at a still agreeable 20.6°C (69.1°F), closely mirroring the climate in April.
• Talca - May »
  With the rise in relative humidity and the decline in sunshine duration, it becomes apparent that Winter is at the threshold for Talca, Chile. On the first day of May in Talca sunrise is at 07:24 and sunset at 18:02.
• Arica - May »
  April through November, with an average maximum UV index of 5, are months with the lowest UV index in Arica, Chile. On the first day of May in Arica, sunrise is at 06:55 and sunset at 18:20.
• Puerto Montt - May »
  In Puerto Montt, during the entire year, the rain falls for 194.3 days and collects up to 1256mm (49.45") of precipitation. On the first day of May in Puerto Montt, Chile, sunrise is at 07:40 and sunset at 17:57.
• Chillán - May »
  In Chillán, during the entire year, the rain falls for 88.3 days and collects up to 706mm (27.8") of precipitation. In Chillán, in May, during 8.9 rainfall days, 94mm (3.7") of precipitation is typically accumulated.