Cool
Average highs are around 12°C, so pack for cooler days.
December verdict
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 48mm, which is relatively low for holiday planning.
Monthly averages
Temp
12°C
Rain
48mm
Sun
6h
Sea
8°C
Weather score
30
Poor
Cool
Average highs are around 12°C, so pack for cooler days.
Drier
Rainfall averages 48mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 8°C, so the water can feel cool.
Map
Compare Puerto Williams, Chile with nearby places by weather score, rain, sun, temperature, and swim conditions.
December12°C average high
December is one of Puerto Williams' hottest months, so shade and slower afternoons matter.
Warmest monthsJanuary to March and November to December
This stretch sets the upper range for average daytime heat.
December48mm average rain
December is close to Puerto Williams' usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
December6 hours average sun
December is brighter than Puerto Williams' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary to February and October to December
This stretch has the strongest sunshine in the monthly averages.
December8°C average sea
December is close to Puerto Williams' yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April and December
Sea temperatures are usually near 9°C in this stretch, so swimming comfort is at its strongest.
December30 weather score
December scores above Puerto Williams' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to March and July to December
These months have the strongest weather score in the monthly averages.