Glacier Bay National Park

Weather and Climate of Glacier Bay National Park


Glacier BayGlacier Bay has a maritime climate, heavily influenced by ocean currents. The result is mild winter temperatures and cool summer temperatures near sea level.

Summer visitors can expect highs between of 50-to-60 degrees F (10-to-15 degrees C). Winter temperatures rarely drop into the single digits, with average nighttime lows of 25-to-40 degrees F (-2 to 5 degrees C).

Bartlett Cove receives about 70 inches of precipitation annually. April, May and June are usually the driest months of the year while September and October tend to be the wettest. All this moisture helps to create the lush temperate rainforests of the lower bay.

Unlike the areas at sea level, conditions in the mountains are more severe with colder temperatures and more precipitation that takes the form of snow. It’s all that snow falling year after year that goes into creating the magnificent glaciers we love to see.

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Weather Links

Here are some links for more detailed information about current weather conditions in the area:

National Weather Service Forecast

National Weather Service Radar

National Weather Service Satellite

Glacier Bay Park

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