Climate in Antofagasta, Chile

Antofagasta, Chile has a semi-arid climate. The annual average temperature is about 23.8°C, with around 2999 hours of sunshine; the national rainfall baseline is roughly 400 mm across 43 rainy days a year. The warmest month is Jan (highs near 32.9°C) and the coldest is Jul (lows near 14.6°C). These are deterministic planning estimates, not a forecast or measured station data. Temperature and sunshine follow the city's latitude; rainfall and the climate zone come from a country-level baseline that every city in the country shares (refined by region in the United States, Canada and Australia), so they do not show local differences. Check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Antofagasta is classified as Semi-Arid. The classification combines the city’s own temperature range, which follows its latitude, with a rainfall pattern taken at country level for Chile — so cities in the same country usually share a zone.

The rainfall baseline for Chile is about 400 mm a year over roughly 43 rainy days, with the wettest month Jun and the driest Jan. This figure is not specific to Antofagasta: every city in Chile carries the same baseline, so it will not show the difference between, say, a dry inland city and a wet coastal one. Use an official meteorological service for local rainfall.

Antofagasta sees an estimated 2999 hours of sunshine a year, concentrated in the warmer months around Jan.

By temperature and rainfall, the most comfortable months in Antofagasta are Aug, Sep, Jul. Conditions vary year to year — verify with a current forecast before booking.

Antofagasta has a climate comfort score of 78/100, a very comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.