Cool
Average highs are around 14°C, so pack for cooler days.
Weather Guide
Glacier Bay National Park, United States Average Monthly Weather
Weather score20Poor annual avg
Best months: May, June, July
Across the year, average daytime temperatures are around 3°C, sunshine averages 4.5h per day, and rainfall totals about 1513mm. Sea temperatures average 9°C across the year.
Annual weather
Annual averages
Temp
3°C
Rain
1513mm
Annual total
Sun
4.5h
Sea
9°C
Weather score
20
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 81mm, so some wet days are possible.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Weather map
Compare Glacier Bay National Park, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July14°C average high
July is one of Glacier Bay National Park's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July81mm average rain
July is one of Glacier Bay National Park's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMarch to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July6.9 hours average sun
July is brighter than Glacier Bay National Park's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July13°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
Weather score
July29 weather score
July scores above Glacier Bay National Park's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to July
These months have the strongest weather score in the monthly averages.
