Cool
Average highs are around 18°C, so pack for cooler days.
Weather Guide
Gustavus, United States Average Monthly Weather
Weather score21Poor annual avg
Best months: July, June, May
Across the year, average daytime temperatures are around 9°C, sunshine averages 4.4h per day, and rainfall totals about 1434mm. Sea temperatures average 9°C across the year.
Annual weather
Annual averages
Temp
9°C
Rain
1434mm
Annual total
Sun
4.4h
Sea
9°C
Weather score
21
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 114mm, so some wet days are possible.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare Gustavus, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August18°C average high
August is one of Gustavus' hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August114mm average rain
August sits on the drier side of Gustavus' year, which helps with sightseeing and transfers.
Driest monthsJanuary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August6 hours average sun
August is brighter than Gustavus' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August14°C average sea
August is one of Gustavus' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
Weather score
August30 weather score
August scores above Gustavus' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.
