Cool
Average highs are around 7°C, so pack for cooler days.
September verdict
Puerto Williams, Chile in September
Weather score31Poor
Poor for holiday weather
Average highs are around 7°C, so pack for cooler days. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 39mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
7°C
Rain
39mm
Sun
5.2h
Sea
6°C
Weather score
31
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 39mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 6°C, so the water can feel cool.
Map
Weather map
Compare Puerto Williams, Chile with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September7°C average high
September is close to Puerto Williams' yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJanuary to March and November to December
This stretch sets the upper range for average daytime heat.
Rain
September39mm average rain
September 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.
Sun
September5.2 hours average sun
September sits close to Puerto Williams' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to February and October to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September6°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to April and December
Sea temperatures are usually near 9°C in this stretch, so swimming comfort is at its strongest.
Weather score
September31 weather score
September 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.