Temperature Increases

Annual Mean

Ranges for annual mean sea surface temperatures by ecoregion. Lowest value under Minor Risk is the ecoregion mean.

No. Ecoregion Minor Risk Low Risk Moderate Risk High Risk
1 Beaufort Sea - continental coast and shelf
0.03°C - 0.46°C
0.47°C - 0.9°C
0.91°C - 1.34°C
>=1.35°C
2 Chukchi Sea
0.55°C - 1.23°C
1.24°C - 1.92°C
1.93°C - 2.61°C
>=2.62°C
3 Eastern Bering Sea
3.75°C - 4.32°C
4.33°C - 4.9°C
4.91°C - 5.47°C
>=5.48°C
4 Aleutian Islands
5.67°C - 6.06°C
6.07°C - 6.47°C
6.48°C - 6.87°C
>=6.88°C
5 Gulf of Alaska
7.42°C - 7.89°C
7.9°C - 8.38°C
8.39°C - 8.87°C
>=8.88°C
6 North American Pacific Fjordland
9.47°C - 9.92°C
9.93°C - 10.38°C
10.39°C - 10.84°C
>=10.85°C
7 Puget Trough/Georgia Basin
10.44°C - 10.93°C
10.94°C - 11.43°C
11.44°C - 11.94°C
>=11.95°C
8 Oregon, Washington, Vancouver Coast and Shelf
11.51°C - 12.06°C
12.07°C - 12.61°C
12.62°C - 13.17°C
>=13.18°C
9 Northern California
13.55°C - 14.16°C
14.17°C - 14.78°C
14.79°C - 15.4°C
>=15.41°C
10 Southern California Bight
17.81°C - 18.39°C
18.4°C - 18.99°C
19.0°C - 19.58°C
>=19.59°C
11 Magdalena Transition
22.61°C - 23.27°C
23.28°C - 23.94°C
23.95°C - 24.61°C
>=24.62°C
12 Cortezian
24.79°C - 25.23°C
25.24°C - 25.68°C
25.69°C - 26.13°C
>=26.14°C
13 Mexican Tropical Pacific
28.87°C - 29.22°C
29.23°C - 29.58°C
29.59°C - 29.94°C
>=29.95°C

Summer Temperature

Ranges for the summer sea surface temperatures by ecoregion. Lowest value under Minor Risk is the ecoregion mean

No. Ecoregion Minor Risk Low Risk Moderate Risk High Risk
1 Beaufort Sea - continental coast and shelf
1.77°C - 3.07°C
3.08°C - 4.38°C
4.39°C - 5.68°C
>=5.69°C
2 Chukchi Sea
3.35°C - 4.81°C
4.82°C - 6.27°C
6.28°C - 7.74°C
>=7.75°C
3 Aleutian Islands
8.44°C - 9.02°C
9.03°C - 9.62°C
9.63°C - 10.21°C
>=10.22°C
4 Eastern Bering Sea
8.67°C - 9.64°C
9.65°C - 10.62°C
10.63°C - 11.6°C
>=11.61°C
5 Gulf of Alaska
11.82°C - 12.49°C
12.5°C - 13.17°C
13.18°C - 13.85°C
>=13.86°C
6 North American Pacific Fjordland
13.22°C - 13.94°C
13.95°C - 14.66°C
14.67°C - 15.38°C
>=15.39°C
7 Puget Trough/Georgia Basin
13.59°C - 14.92°C
14.93°C - 16.26°C
16.27°C - 17.6°C
>=17.61°C
8 Oregon, Washington, Vancouver Coast and Shelf
14.12°C - 14.98°C
14.99°C - 15.85°C
15.86°C - 16.72°C
>=16.73°C
9 Northern California
15.19°C - 15.96°C
15.97°C - 16.74°C
16.75°C - 17.52°C
>=17.53°C
10 Southern California Bight
20.53°C - 21.4°C
21.41°C - 22.29°C
22.3°C - 23.17°C
>=23.18°C
11 Magdalena Transition
26.15°C - 27.22°C
27.23°C - 28.3°C
28.31°C - 29.38°C
>=29.39°C
12 Cortezian
30.22°C - 30.6°C
30.61°C - 30.99°C
31.0°C - 31.38°C
>=31.39°C
13 Mexican Tropical Pacific
30.49°C - 30.91°C
30.92°C - 31.34°C
31.35°C - 31.77°C
>=31.78°C

Winter Temperature

Ranges for the winter sea surface temperatures by ecoregion. Lowest value under Minor Risk is the ecoregion mean

No. Ecoregion Minor Risk Low Risk Moderate Risk High Risk
1 Chukchi Sea
-1.53°C - -1.31°C
-1.3°C - -1.07°C
-1.06°C - -0.83°C
>=-0.82°C
2 Beaufort Sea - continental coast and shelf
-1.26°C - -0.76°C
-0.75°C - -0.25°C
-0.24°C - 0.26°C
>=0.27°C
3 Eastern Bering Sea
1.0°C - 1.54°C
1.55°C - 2.08°C
2.09°C - 2.63°C
>=2.64°C
4 Aleutian Islands
3.68°C - 4.15°C
4.16°C - 4.64°C
4.65°C - 5.13°C
>=5.14°C
5 Gulf of Alaska
4.12°C - 4.73°C
4.74°C - 5.34°C
5.35°C - 5.95°C
>=5.96°C
6 North American Pacific Fjordland
6.68°C - 7.28°C
7.29°C - 7.9°C
7.91°C - 8.52°C
>=8.53°C
7 Puget Trough/Georgia Basin
7.51°C - 7.94°C
7.95°C - 8.38°C
8.39°C - 8.82°C
>=8.83°C
8 Oregon, Washington, Vancouver Coast and Shelf
9.34°C - 10.04°C
10.05°C - 10.76°C
10.77°C - 11.47°C
>=11.48°C
9 Northern California
12.64°C - 13.52°C
13.53°C - 14.41°C
14.42°C - 15.3°C
>=15.31°C
10 Southern California Bight
15.72°C - 16.56°C
16.57°C - 17.42°C
17.43°C - 18.27°C
>=18.28°C
11 Cortezian
19.57°C - 20.57°C
20.58°C - 21.58°C
21.59°C - 22.59°C
>=22.6°C
12 Magdalena Transition
19.96°C - 20.98°C
20.99°C - 22.02°C
22.03°C - 23.05°C
>=23.06°C
13 Mexican Tropical Pacific
27.53°C - 27.97°C
27.98°C - 28.42°C
28.43°C - 28.87°C
>=28.88°C