Glacier Bay National Park Climate and Average Weather
Climate of Glacier Bay National Park: average temperatures, rainfall and seasons month by month.
Climate in Glacier Bay National Park month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 27° | 20° | 25,0 in | ★☆☆☆☆ |
| February | 25° | 19° | 13,6 in | ★☆☆☆☆ |
| March | 24° | 18° | 16,0 in | ★☆☆☆☆ |
| April | 31° | 26° | 15,4 in | ★☆☆☆☆ |
| May | 35° | 30° | 16,7 in | ★☆☆☆☆ |
| June | 43° | 38° | 7,6 in | ★★☆☆☆ |
| July | 44° | 40° | 6,3 in | ★★☆☆☆ |
| August | 48° | 41° | 4,9 in | ★★★☆☆ |
| September | 41° | 36° | 27,2 in | ★☆☆☆☆ |
| October | 35° | 29° | 28,7 in | ★☆☆☆☆ |
| November | 29° | 23° | 25,9 in | ★☆☆☆☆ |
| December | 24° | 18° | 33,2 in | ★☆☆☆☆ |
Climate type: Polar. Source: Open-Meteo archive (ERA5).
Recent extremes in Glacier Bay National Park
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Glacier Bay National Park compares with nearby places
Annual averages, and the difference against Glacier Bay National Park.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Wrangell-St. Elias National Park | 296 mi | 2°F | 61°F cooler | 85 in |
Best time to visit Glacier Bay National Park
Go in June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for Glacier Bay National Park
Today is slightly cooler than average for August. The forecast high of 45°F is 3.1°F below the 48°F typical for this month.
A 53% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 56°F.
What to pack, what to skip
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 6 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Glacier Bay National Park is a national park in Alaska. Glacier Bay National Park is a US national park known for tidewater glaciers and whale watching.
Right now it is 42°F (6°C) in Glacier Bay National Park with partly cloudy. It feels like 38°F. Today runs from 40°F to 45°F. Chance of precipitation is 53%. Sightseeing conditions score 6.8/10 - fair - plan around the weather.
The best time to visit Glacier Bay National Park is June, July and August. The climate is polar. January, February and December tend to be the least comfortable months. August is the warmest month with average highs near 48°F, while December is the coldest with lows near 18°F.
In plain terms. Today is slightly cooler than average for August. The forecast high of 45°F is 3.1°F below the 48°F typical for this month. The best window to be outside is roughly 10 AM to 1 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Glacier Bay National Park today at 9.1/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Glacier Bay National Park
| Type | National park |
|---|---|
| State | Alaska |
| Country | United States |
| Continent | North America |
| Coordinates | 58°39′56.9″N 136°54′0.7″W (58.6658, -136.9002) |
| Established | 1980 |
| Known for | tidewater glaciers and whale watching |
| Local time | 7:10 PM (UTC-08:00) |
| Best months | June, July and August |
| Climate | Polar |
Weather map for Glacier Bay National Park
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Glacier Bay National Park
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Glacier Bay National Park?
Glacier Bay National Park is a national park in Alaska. Its coordinates are 58.6658, -136.9002. It lies in North America.
What is the weather like in Glacier Bay National Park right now?
It is currently 42°F (6°C) with partly cloudy. Humidity is 83% and wind is 4 mph.
When is the best time to visit Glacier Bay National Park?
June, July and August offer the most comfortable conditions in Glacier Bay National Park, which has a polar climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Glacier Bay National Park in?
Glacier Bay National Park observes America/Juneau (UTC-08:00). The local time is 7:10 PM.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (national-parks) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 7:10 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
