Antofagasta weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Excellent
Best time to visit: January – December
What is the weather like in Antofagasta in December?
In December, Antofagasta is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, December is an excellent month for a holiday in Antofagasta.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 100 | 100 | 100 |
| Day | 20° | 21° | 23° |
| Night | 13° | 15° | 16° |
| Sea | 17° | 19° | 20° |
| Sun | 10 h | 11 h | 10 h |
| Rain days | 0 | 0 | 0 |
More details for December
- Daylight
- 13 h 35 min06:49 – 20:24
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 38 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−3America/Santiago
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Antofagasta in December: quick answers
Is Antofagasta hot in December?
Warm rather than hot: in December, daytime highs in Antofagasta average 21 °C and nights cool to about 15 °C.
Can you swim in Antofagasta in December?
Only if you don't mind cold water: in December the sea averages just 18.6 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Antofagasta in December?
It hardly ever rains.
Antofagasta month by month
The whole year in AntofagastaAll destinations: ChileWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences