Swimming in Alaska in august 2025 Sea temperature by city in august
Do you want to go to the beach in Alaska in august 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in august in Alaska by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Alaska in august 2025
Here, find the average sea temperature in Alaska in august in several coastal cities.
53°F
min: 50°F / max: 56°F
54°F
min: 50°F / max: 58°F
55°F
min: 50°F / max: 60°F
50°F
min: 48°F / max: 53°F
57°F
min: 53°F / max: 60°F
Cordova
57°F
min: 53°F / max: 60°F
Gambell (St. Lawrence Island)
48°F
min: 43°F / max: 53°F
Haines
54°F
min: 50°F / max: 57°F
Kenai
54°F
min: 50°F / max: 58°F
Kodiak
54°F
min: 50°F / max: 58°F
Kotzebue
55°F
min: 50°F / max: 60°F
Nome
53°F
min: 48°F / max: 58°F
Sand Point
53°F
min: 48°F / max: 59°F
Valdez
56°F
min: 53°F / max: 59°F
Where should you go swimming in Alaska in the month of august?
Swimming in Alaska in august is freezing
In august in Alaska swimming conditions are generally the same everywhere.
Forget about swimming in Anchorage, Anchor Point, Dillingham, Dutch Harbor, Ketchikan, Cordova, Gambell (St. Lawrence Island), Haines, Kenai, Kodiak, Kotzebue, Nome, Sand Point and Valdez in august! The water temperature is freezing, reaching as low as 50°F (and only 56°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!
Where to go swimming in Alaska in august: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in august
Anchorage
| August | |||
| Average sea temperature | 53°F | ||
| Minimum sea temperature | 50°F | ||
| Maximum sea temperature | 56°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 4in | ||
| Number of days of precipitation | 7 jour(s) (23%) | ||
| Cloud cover | 44% | ||
| Our opinion | freezing swimming |
More information on swimming in Anchorage in august
Anchor Point
| August | |||
| Average sea temperature | 54°F | ||
| Minimum sea temperature | 50°F | ||
| Maximum sea temperature | 58°F | ||
| Average outside temperature | 56°F | ||
| Maximum outside temperature | 58°F | ||
| Minimum outside temperature | 54°F | ||
| Precipitation | 7in | ||
| Number of days of precipitation | 9 jour(s) (31%) | ||
| Cloud cover | 48% | ||
| Our opinion | freezing swimming |
More information on swimming in Anchor Point in august
Dillingham
| August | |||
| Average sea temperature | 55°F | ||
| Minimum sea temperature | 50°F | ||
| Maximum sea temperature | 60°F | ||
| Average outside temperature | 56°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 50°F | ||
| Precipitation | 5.6in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 61% | ||
| Our opinion | freezing swimming |
More information on swimming in Dillingham in august
Dutch Harbor
| August | |||
| Average sea temperature | 50°F | ||
| Minimum sea temperature | 48°F | ||
| Maximum sea temperature | 53°F | ||
| Average outside temperature | 54°F | ||
| Maximum outside temperature | 54°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 5.4in | ||
| Number of days of precipitation | 8 jour(s) (24%) | ||
| Cloud cover | 67% | ||
| Our opinion | freezing swimming |
More information on swimming in Dutch Harbor in august
Ketchikan
| August | |||
| Average sea temperature | 57°F | ||
| Minimum sea temperature | 53°F | ||
| Maximum sea temperature | 60°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 56°F | ||
| Precipitation | 13.7in | ||
| Number of days of precipitation | 12 jour(s) (40%) | ||
| Cloud cover | 56% | ||
| Our opinion | freezing swimming |
More information on swimming in Ketchikan in august
List of coastal cities in Alaska
| Anchorage in august | freezing swimming |
| Anchor Point in august | freezing swimming |
| Dillingham in august | freezing swimming |
| Dutch Harbor in august | freezing swimming |
| Ketchikan in august | freezing swimming |
| Cordova in august | freezing swimming |
| Gambell (St. Lawrence Island) in august | freezing swimming |
| Haines in august | freezing swimming |
| Kenai in august | freezing swimming |
| Kodiak in august | freezing swimming |
| Kotzebue in august | freezing swimming |
| Nome in august | freezing swimming |
| Sand Point in august | freezing swimming |
| Valdez in august | freezing swimming |