La Serena, Chile has a semi-arid climate. The annual average temperature is about 21.5°C and the city receives roughly 400 mm of precipitation across 43 rainy days a year, with around 3008 hours of sunshine. The warmest month is Jan (highs near 31.4°C) and the coldest is Jul (lows near 11.7°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.
Data year 2025; last updated 2026-05-16.