Glacier Bay National Park and Preserve (AK) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Glacier Bay National Park and Preserve.
Climate overview of Glacier Bay National Park and Preserve
Glacier Bay National Park and Preserve, Alaska, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 10°C (50°F) in July, while winters cool to -3°C (27°F) in January.
With around 4303 mm (169 in) of annual rain/snowfall, Glacier Bay National Park and Preserve has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has cold summers and very cold winters. The wettest month is October.
Glacier Bay National Park and Preserve Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Glacier Bay National Park and Preserve - and find the best time to visit.
Monthly Temperature in Glacier Bay National Park and Preserve
Depending on the time of the year, temperatures range from chilly to very cold in Glacier Bay National Park and Preserve. Average daytime temperatures reach a chilly 10°C (50°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -3°C (27°F).
At night, temperatures range from around 5°C (41°F) in July to -8°C (18°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Glacier Bay National Park and Preserve
Glacier Bay National Park and Preserve has a relatively rain/snowy climate with high precipitation levels, averaging 4303 mm (169 in) of rain/snowfall annually. Glacier Bay National Park and Preserve can be quite wet during October, receiving approximately 522 mm (21 in) of precipitation over 21 snowy/rainy days.
In contrast, during the driest month (June), you will experience much drier conditions, with 165 mm (6.5 in) of precipitation spread across 12 rainy days. For more details, please visit our Glacier Bay National Park and Preserve Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Glacier Bay National Park and Preserve
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Warmest weather: June, July and August
- Seasonal pattern: Cold summers and very cold winters
- Coldest conditions: January, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Glacier Bay National Park and Preserve
What is the best time to visit Glacier Bay National Park and Preserve?
Glacier Bay National Park and Preserve has cold summers and very cold winters.
What temperatures can I expect in Glacier Bay National Park and Preserve?
Daytime highs range from -3°C (27°F) in January to 10°C (50°F) in July. Nighttime lows range from -8°C (18°F) to 5°C (41°F). Temperatures vary considerably through the year.
How much rain does Glacier Bay National Park and Preserve get?
Annual rainfall is around 4303 mm (169 in). October is the wettest month with 522 mm (21 in), while June is the driest with 165 mm (6.5 in). In the coldest months, precipitation may fall as snow/rain.
Glacier Bay National Park and Preserve 3-Day Forecast
Glacier Bay National Park and Preserve on the map
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