Antofagasta weather by month & the best time to visit
Chile · city break · cold desert climate

The best time to visit Antofagasta is January — its sunniest month (Sunshine Score 100/100), with February and March close behind. Antofagasta averages about 3,624 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 1 mm of rain in January.
When is the best time to visit Antofagasta?
For sunshine, the best time to visit Antofagasta is January, then February and March. The dullest month is July (75/100, 1 mm of rain). The full month-by-month picture is in the table below.
How sunny is Antofagasta?
Antofagasta is one of the sunniest places on Earth: about 3,624 hours of sunshine a year. January (100/100) is noticeably better than July (75). It ranks #3 of 18 destinations in Chile for annual sunshine, above the national median of 2,773 hours. Rain is a non-event in Antofagasta — about 10 mm in a typical year.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 100 | 23° / 73°F | 19° / 66°F | 1 mm | 15 | 19° / 66°F |
| February | 100 | 23° / 73°F | 20° / 68°F | 2 mm | 14 | 21° / 70°F |
| March | 100 | 22° / 72°F | 18° / 64°F | 1 mm | 12 | 19° / 66°F |
| April | 100 | 21° / 70°F | 17° / 63°F | 0 mm | 9 | 18° / 64°F |
| May | 92 | 19° / 66°F | 15° / 59°F | 0 mm | 6 | 17° / 63°F |
| June | 83 | 18° / 64°F | 14° / 57°F | 2 mm | 5 | 16° / 61°F |
| July | 75 | 17° / 63°F | 13° / 55°F | 1 mm | 5 | 15° / 59°F |
| August | 75 | 17° / 63°F | 13° / 55°F | 2 mm | 7 | 16° / 61°F |
| September | 75 | 17° / 63°F | 13° / 55°F | 0 mm | 9 | 16° / 61°F |
| October | 83 | 18° / 64°F | 14° / 57°F | 0 mm | 11 | 16° / 61°F |
| November | 92 | 19° / 66°F | 15° / 59°F | 0 mm | 13 | 17° / 63°F |
| December | 100 | 21° / 70°F | 17° / 63°F | 1 mm | 14 | 18° / 64°F |
Sea temperature in Antofagasta by month
The sea off Antofagasta is warmest in February at around 21°C / 70°F, and coolest in July at 15°C / 59°F. The water sits at a comfortable 21°C or warmer roughly 1 month a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Antofagasta compares month by month: Antofagasta vs Salta · Antofagasta vs Iquique · Antofagasta vs Calama · Antofagasta vs Copiapo · all comparisons
Antofagasta: questions and answers
What kind of destination is Antofagasta?
Antofagasta is a city break in Chile with a cold desert climate — the sea reaches 21°C at its warmest and is swimmable (21°C+) about 1 months a year.
How many hours of sunshine does Antofagasta get a year?
Antofagasta gets about 3,624 hours of sunshine a year, at its best around January.
When is the best time to visit Antofagasta?
The sunniest time to visit Antofagasta is January, when the Sunshine Score peaks at 100/100 (with February and March close behind). Expect daytime highs around 23°C / 73°F.
What is the least sunny month in Antofagasta?
July is the least sunny month in Antofagasta, scoring 75/100 with about 1 mm of rain.
What is the sea temperature in Antofagasta?
The sea in Antofagasta ranges from about 15°C (July) to 21°C (February). Month-by-month sea temperatures are on this page.
How strong is the sun in Antofagasta?
The typical midday UV index in Antofagasta peaks around 15 (extreme) in January, easing to about 5 (moderate) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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