Cool
Average highs are around 18°C, so pack for cooler days.
December verdict
Mixed for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 10h per day, so bright days are a strong part of the month. Rainfall averages 95mm, so some wet days are possible.
Monthly averages
Temp
18°C
Rain
95mm
Sun
10h
Sea
15°C
Weather score
48
Mixed
Cool
Average highs are around 18°C, so pack for cooler days.
Showers
Rainfall averages 95mm, so some wet days are possible.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare Puerto Montt, Chile with nearby places by weather score, rain, sun, temperature, and swim conditions.
December18°C average high
December sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJanuary to February and December
This stretch sets the upper range for average daytime heat.
December95mm average rain
December is one of Puerto Montt's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to March and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December10 hours average sun
December is one of Puerto Montt's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
December15°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to March and December
Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.
December48 weather score
December is one of Puerto Montt's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to February and December
These months have the strongest weather score in the monthly averages.