Updated
Portage Bay
Bay
Cold water — serious cold-shock risk today
Cold waterCold water — serious cold-shock risk today: water temperature is 49°F, cold enough to cause cold-water shock on sudden immersion.
- Water temperature is 49°F, cold enough to cause cold-water shock on sudden immersion.
- A Small Craft Advisory is in effect for Unalga Pass to Nikolski Bering Side out to 15 NM.
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 49°F, cold enough to cause cold-water shock on sudden immersion.
- Water temperature is 49°F, cold enough to cause cold-water shock on sudden immersion. — NOAA buoy UNLA2, as of Aug 21, 11:48 PM UTC
- A Small Craft Advisory is in effect for Unalga Pass to Nikolski Bering Side out to 15 NM. — NWS Anchorage AK
- A Small Craft Advisory is in effect for Unalga Pass to Nikolski Bering Side out to 15 NM. — NWS Anchorage AK
- A Small Craft Advisory is in effect for Unalga Pass to Nikolski Bering Side out to 15 NM. — NWS Anchorage AK
No official beach-advisory feed for Alaska yet — follow posted signs and local guidance.
Live data from NOAA buoy UNLA2 (14.5 mi away), as of Aug 21, 11:48 PM UTC.
Weather at Portage Bay
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Frequently asked questions
- Where is Portage Bay?
- Portage Bay is a bay in Alaska.
- What is the water temperature at Portage Bay?
- As of August 21, 2026, the water temperature at Portage Bay in Alaska is 49°F (10°C), measured by NOAA buoy UNLA2, 14.5 miles away.
- Can you swim at Portage Bay?
- Cold water — serious cold-shock risk today: water temperature is 49°F, cold enough to cause cold-water shock on sudden immersion. Checked August 21, 2026.
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Alaska
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