Updated
Portage Lagoon
Bay
Cold water — serious cold-shock risk today
Cold waterCold water — serious cold-shock risk today: water temperature is 47°F, cold enough to cause cold-water shock on sudden immersion.
- Water temperature is 47°F, cold enough to cause cold-water shock on sudden immersion.
bay in Aleutians West Census Area, United States of America
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Cold water — serious cold-shock risk today
Cold waterCold water — serious cold-shock risk today: water temperature is 47°F, cold enough to cause cold-water shock on sudden immersion.
- Water temperature is 47°F, cold enough to cause cold-water shock on sudden immersion. — NOAA buoy ATKA2, as of Aug 21, 11:00 PM UTC
No official beach-advisory feed for Alaska yet — follow posted signs and local guidance.
Live data from NOAA buoy ATKA2 (38.9 mi away), as of Aug 21, 11:00 PM UTC.
Weather at Portage Lagoon









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Frequently asked questions
- Where is Portage Lagoon?
- Portage Lagoon is a bay in Alaska.
- What is the water temperature at Portage Lagoon?
- As of August 21, 2026, the water temperature at Portage Lagoon in Alaska is 47°F (8°C), measured by NOAA buoy ATKA2, 38.9 miles away.
- Can you swim at Portage Lagoon?
- Cold water — serious cold-shock risk today: water temperature is 47°F, cold enough to cause cold-water shock on sudden immersion. Checked August 21, 2026.
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Best Times to Visit
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
Location & Contact
Alaska
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