Sea weather in Ketchikan in Alaska All the beach weather in Ketchikan

All the essential weather information for enjoying the beach in Ketchikan in Alaska, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Ketchikan over the next 7 days?

Discover the best moment to go to the beach in Ketchikan in Alaska this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Ketchikan. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Friday 12 December 202529°F to 32°Fnot recommended
Saturday 13 December 202531°F to 43°Fdiscouraged
Sunday 14 December 202540°F to 49°Fnot recommended
Monday 15 December 202538°F to 45°Fnot recommended
Tuesday 16 December 202538°F to 45°Fnot recommended
Wednesday 17 December 202541°F to 43°Fdiscouraged
Thursday 18 December 202531°F to 41°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Ketchikan

Sea weather on Friday 12 December 2025

On Friday 12 December 2025, the sun will rise at 08:05 and will set at 15:16 on the beach(es) of Ketchikan. The outside temperature will be a high of 32°F t and a low of 29°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 22.4mph km/h (with gusts up to 28mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature-1°C (30°F)-1°C (30°F)-0°C (31°F)-1°C (31°F)-1°C (30°F)-1°C (31°F)-2°C (29°F)-0°C (31°F)
Perceived temperature-8°C (17°F)-8°C (17°F)-7°C (19°F)-8°C (18°F)-8°C (17°F)-7°C (19°F)-8°C (17°F)-6°C (21°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%69%66%65%63%60%60%59%
Barometric pressure1025 hPa1024 hPa1024 hPa1022 hPa1021 hPa1018 hPa1015 hPa1012 hPa
Cloud cover63%100%89%12%12%30%6%46%
Heat index-1°C (30°F)-1°C (30°F)-0°C (31°F)-1°C (31°F)-1°C (30°F)-1°C (31°F)-2°C (29°F)-0°C (31°F)
Dew point-6°C (22°F)-6°C (21°F)-6°C (22°F)-6°C (21°F)-7°C (19°F)-7°C (19°F)-8°C (17°F)-7°C (19°F)
Wind
Speed35km/h (22mph)35km/h (22mph)36km/h (22mph)34km/h (21mph)33km/h (21mph)30km/h (18mph)27km/h (17mph)22km/h (14mph)
Gusts41km/h (26mph)42km/h (26mph)42km/h (26mph)40km/h (25mph)45km/h (28mph)40km/h (25mph)44km/h (27mph)29km/h (18mph)
Direction 12°
NNE
13°
NNE

N

N
13°
NNE
20°
NNE
28°
NNE
39°
NE
Wind chill-8°C (17°F)-8°C (17°F)-7°C (19°F)-8°C (18°F)-8°C (17°F)-7°C (19°F)-8°C (17°F)-6°C (21°F)
Waves
Height0.7m (2.2ft)0.7m (2.2ft)0.6m (2.1ft)0.6m (2.1ft)0.6m (2.1ft)0.6m (2.0ft)0.5m (1.8ft)0.5m (1.7ft)
Direction 252°
WSW
20°
NNE
20°
NNE
22°
NNE
24°
NNE
27°
NNE
32°
NNE
42°
NE
Period11.8 sec.11.4 sec.11.1 sec.10.9 sec.10.9 sec.10.8 sec.10.7 sec.10.5 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 08:06 and will set at 15:16 on the beach(es) of Ketchikan. The outside temperature will be a high of 43°F t and a low of 31°F. Precipitation is in the forecast (0.4in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 21.8mph km/h (with gusts up to 32.3mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature-0°C (32°F)-1°C (30°F)-1°C (31°F)1°C (33°F)5°C (42°F)4°C (38°F)4°C (40°F)5°C (41°F)
Perceived temperature-6°C (22°F)-8°C (18°F)-7°C (19°F)-5°C (23°F)2°C (35°F)-2°C (28°F)-1°C (30°F)-0°C (32°F)
Precipitation0in0.1in0.1in0.1in0in0in0in0in
Humidity57%83%95%97%91%93%93%89%
Barometric pressure1008 hPa1003 hPa998 hPa997 hPa998 hPa999 hPa999 hPa997 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index-0°C (32°F)-1°C (30°F)-1°C (31°F)1°C (33°F)5°C (42°F)4°C (38°F)4°C (40°F)5°C (41°F)
Dew point-8°C (18°F)-4°C (25°F)-1°C (30°F)0°C (32°F)4°C (39°F)3°C (37°F)3°C (38°F)3°C (38°F)
Wind
Speed21km/h (13mph)29km/h (18mph)30km/h (19mph)24km/h (15mph)18km/h (11mph)33km/h (20mph)35km/h (21mph)33km/h (21mph)
Gusts26km/h (16mph)34km/h (21mph)37km/h (23mph)32km/h (20mph)26km/h (16mph)48km/h (30mph)52km/h (32mph)47km/h (30mph)
Direction 52°
NE
41°
NE
42°
NE
66°
ENE
144°
SE
97°
E
112°
ESE
103°
ESE
Wind chill-6°C (22°F)-8°C (18°F)-7°C (19°F)-5°C (23°F)2°C (35°F)-2°C (28°F)-1°C (30°F)-0°C (32°F)
Waves
Height0.6m (2.1ft)0.7m (2.3ft)0.7m (2.4ft)0.7m (2.2ft)0.9m (3.0ft)1.0m (3.3ft)1.1m (3.7ft)1.1m (3.7ft)
Direction 44°
NE
39°
NE
47°
NE
67°
ENE
162°
SSE
163°
SSE
164°
SSE
166°
SSE
Period6.9 sec.6.9 sec.6.8 sec.6.7 sec.13.3 sec.5.7 sec.12.1 sec.12.0 sec.
Significant height1.2m (3.9ft)1.0m (3.3ft)1.1m (3.6ft)0.9m (3ft)0.8m (2.6ft)0.5m (1.6ft)0.7m (2.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 08:07 and will set at 15:16 on the beach(es) of Ketchikan. The outside temperature will be a high of 49°F t and a low of 40°F. Precipitation is in the forecast (0.4in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 50.3mph km/h (with gusts up to 53.4mph). Wave height will be up to 10.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (40°F)8°C (46°F)9°C (47°F)8°C (46°F)8°C (46°F)7°C (45°F)6°C (43°F)9°C (49°F)
Perceived temperature-1°C (31°F)3°C (37°F)3°C (37°F)2°C (36°F)2°C (36°F)1°C (34°F)-1°C (30°F)3°C (38°F)
Precipitation0.1in0in0in0in0in0.1in0.1in0.1in
Humidity92%88%84%82%83%89%90%91%
Barometric pressure994 hPa991 hPa990 hPa995 hPa997 hPa993 hPa985 hPa982 hPa
Cloud cover100%84%100%100%54%100%100%100%
Heat index4°C (40°F)8°C (46°F)9°C (47°F)8°C (46°F)8°C (46°F)7°C (45°F)6°C (43°F)9°C (49°F)
Dew point3°C (38°F)6°C (43°F)6°C (43°F)5°C (41°F)5°C (41°F)6°C (42°F)5°C (40°F)8°C (46°F)
Wind
Speed28km/h (17mph)47km/h (29mph)62km/h (38mph)53km/h (33mph)51km/h (32mph)63km/h (39mph)69km/h (43mph)81km/h (51mph)
Gusts38km/h (24mph)50km/h (31mph)69km/h (43mph)57km/h (35mph)53km/h (33mph)65km/h (40mph)76km/h (47mph)86km/h (54mph)
Direction 72°
ENE
141°
SE
164°
SSE
188°
S
163°
SSE
149°
SSE
127°
SE
160°
SSE
Wind chill-1°C (31°F)3°C (37°F)3°C (37°F)2°C (36°F)2°C (36°F)1°C (34°F)-1°C (30°F)3°C (38°F)
Waves
Height1.1m (3.7ft)1.5m (4.9ft)2.6m (8.6ft)2.7m (8.9ft)2.6m (8.7ft)2.7m (9.0ft)2.7m (8.9ft)3.1m (10.1ft)
Direction 166°
SSE
160°
SSE
164°
SSE
170°
S
166°
SSE
162°
SSE
161°
SSE
164°
SSE
Period6.1 sec.9.4 sec.12.1 sec.12.3 sec.12.3 sec.9.4 sec.10.3 sec.16.3 sec.
Significant height1.0m (3.3ft)1.7m (5.6ft)2.4m (7.9ft)2.0m (6.6ft)2.3m (7.5ft)2.2m (7.2ft)2.1m (6.9ft)1.8m (5.9ft)
Sea water temperature
Water temperature6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 08:08 and will set at 15:16 on the beach(es) of Ketchikan. The outside temperature will be a high of 45°F t and a low of 38°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 32.9mph km/h (with gusts up to 36mph). Wave height will be up to 8.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)7°C (44°F)7°C (44°F)6°C (43°F)5°C (42°F)5°C (42°F)5°C (41°F)4°C (39°F)
Perceived temperature3°C (38°F)2°C (36°F)3°C (37°F)1°C (34°F)-0°C (32°F)-0°C (32°F)-1°C (30°F)-2°C (29°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity87%74%67%74%77%72%77%86%
Barometric pressure985 hPa987 hPa989 hPa992 hPa994 hPa995 hPa996 hPa996 hPa
Cloud cover100%95%61%86%72%80%52%100%
Heat index7°C (45°F)7°C (44°F)7°C (44°F)6°C (43°F)5°C (42°F)5°C (42°F)5°C (41°F)4°C (39°F)
Dew point5°C (42°F)2°C (36°F)1°C (33°F)2°C (35°F)2°C (35°F)1°C (33°F)2°C (35°F)2°C (36°F)
Wind
Speed30km/h (18mph)27km/h (17mph)22km/h (13mph)35km/h (22mph)40km/h (25mph)41km/h (25mph)53km/h (33mph)39km/h (24mph)
Gusts42km/h (26mph)36km/h (23mph)30km/h (19mph)49km/h (31mph)57km/h (35mph)47km/h (29mph)58km/h (36mph)55km/h (34mph)
Direction 257°
WSW
242°
WSW
208°
SSW
190°
S
209°
SSW
189°
S
194°
SSW
211°
SSW
Wind chill3°C (38°F)2°C (36°F)3°C (37°F)1°C (34°F)-0°C (32°F)-0°C (32°F)-1°C (30°F)-2°C (29°F)
Waves
Height2.4m (7.7ft)2.4m (7.9ft)2.7m (8.7ft)2.4m (8.0ft)2.4m (7.8ft)2.3m (7.4ft)2.3m (7.4ft)2.2m (7.2ft)
Direction 165°
SSE
179°
S
241°
WSW
241°
WSW
242°
WSW
244°
WSW
179°
S
182°
S
Period12.4 sec.15.3 sec.15.2 sec.15.0 sec.14.6 sec.14.3 sec.13.3 sec.13.1 sec.
Significant height1.7m (5.6ft)1.9m (6.2ft)1.9m (6.2ft)1.7m (5.6ft)1.7m (5.6ft)1.8m (5.9ft)1.7m (5.6ft)1.7m (5.6ft)
Sea water temperature
Water temperature6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)6°C (42°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 08:09 and will set at 15:16 on the beach(es) of Ketchikan. The outside temperature will be a high of 45°F t and a low of 38°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 40.4mph km/h (with gusts up to 44.1mph). Wave height will be up to 6.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature3°C (38°F)7°C (44°F)7°C (44°F)6°C (43°F)4°C (40°F)5°C (41°F)5°C (41°F)5°C (42°F)
Perceived temperature-2°C (28°F)1°C (35°F)0°C (33°F)1°C (34°F)0°C (33°F)3°C (37°F)1°C (34°F)1°C (33°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity97%77%83%81%86%73%77%76%
Barometric pressure996 hPa994 hPa989 hPa987 hPa985 hPa984 hPa985 hPa987 hPa
Cloud cover100%100%100%88%100%98%100%100%
Heat index3°C (38°F)7°C (44°F)7°C (44°F)6°C (43°F)4°C (40°F)5°C (41°F)5°C (41°F)5°C (42°F)
Dew point3°C (37°F)3°C (37°F)4°C (39°F)3°C (38°F)2°C (36°F)0°C (33°F)1°C (34°F)1°C (35°F)
Wind
Speed28km/h (17mph)37km/h (23mph)65km/h (40mph)36km/h (22mph)20km/h (13mph)10km/h (6mph)18km/h (11mph)28km/h (17mph)
Gusts37km/h (23mph)52km/h (32mph)71km/h (44mph)51km/h (31mph)28km/h (17mph)15km/h (9mph)25km/h (15mph)41km/h (25mph)
Direction 198°
SSW
156°
SSE
150°
SSE
184°
S
162°
SSE
185°
S
195°
SSW
238°
WSW
Wind chill-2°C (28°F)1°C (35°F)0°C (33°F)1°C (34°F)0°C (33°F)3°C (37°F)1°C (34°F)1°C (33°F)
Waves
Height2.1m (6.8ft)1.9m (6.3ft)1.7m (5.5ft)1.5m (4.8ft)1.2m (3.9ft)0.9m (3.0ft)0.7m (2.4ft)0.6m (2.1ft)
Direction 183°
S
189°
S
191°
SSW
194°
SSW
247°
WSW
246°
WSW
248°
WSW
248°
WSW
Period12.5 sec.12.5 sec.12.5 sec.11.0 sec.10.8 sec.5.7 sec.6.0 sec.5.7 sec.
Significant height1.7m (5.6ft)1.4m (4.6ft)1.5m (4.9ft)1.1m (3.6ft)0.7m (2.3ft)0.2m (0.7ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 08:10 and will set at 15:16 on the beach(es) of Ketchikan. The outside temperature will be a high of 43°F t and a low of 41°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 21.8mph km/h (with gusts up to 32.3mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (42°F)5°C (42°F)6°C (42°F)5°C (42°F)6°C (42°F)5°C (42°F)5°C (42°F)
Perceived temperature1°C (34°F)1°C (33°F)0°C (33°F)1°C (33°F)0°C (32°F)0°C (33°F)0°C (33°F)1°C (34°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%72%73%64%70%68%69%72%
Barometric pressure990 hPa991 hPa993 hPa995 hPa996 hPa996 hPa997 hPa996 hPa
Cloud cover100%53%100%71%98%88%59%98%
Heat index6°C (43°F)6°C (42°F)5°C (42°F)6°C (42°F)5°C (42°F)6°C (42°F)5°C (42°F)5°C (42°F)
Dew point1°C (33°F)1°C (34°F)1°C (34°F)-1°C (31°F)0°C (32°F)0°C (32°F)0°C (32°F)1°C (33°F)
Wind
Speed35km/h (21mph)33km/h (21mph)31km/h (19mph)35km/h (22mph)35km/h (21mph)33km/h (20mph)30km/h (19mph)24km/h (15mph)
Gusts47km/h (29mph)50km/h (31mph)43km/h (27mph)52km/h (32mph)48km/h (30mph)49km/h (30mph)45km/h (28mph)39km/h (24mph)
Direction 212°
SSW
203°
SSW
204°
SSW
185°
S
179°
S
170°
S
161°
SSE
147°
SSE
Wind chill1°C (34°F)1°C (33°F)0°C (33°F)1°C (33°F)0°C (32°F)0°C (33°F)0°C (33°F)1°C (34°F)
Waves
Height0.6m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.6m (1.9ft)0.9m (2.8ft)0.9m (3.1ft)1.0m (3.2ft)1.0m (3.2ft)
Direction 247°
WSW
210°
SSW
185°
S
193°
SSW
216°
SW
202°
SSW
195°
SSW
187°
S
Period6.5 sec.7.1 sec.7.9 sec.8.1 sec.13.3 sec.7.9 sec.7.5 sec.7.4 sec.
Significant height0.3m (1ft)0.1m (0.3ft)0.3m (1ft)0.8m (2.6ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 08:10 and will set at 15:17 on the beach(es) of Ketchikan. The outside temperature will be a high of 41°F t and a low of 31°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 23.6mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (40°F)3°C (37°F)1°C (34°F)1°C (33°F)0°C (32°F)-0°C (31°F)-1°C (31°F)-1°C (30°F)
Perceived temperature0°C (33°F)-2°C (28°F)-5°C (23°F)-5°C (22°F)-6°C (21°F)-7°C (20°F)-7°C (20°F)-7°C (19°F)
Precipitation0in0.1in0.1in0in0in0in0in0in
Humidity82%99%99%92%88%88%85%91%
Barometric pressure996 hPa995 hPa994 hPa995 hPa995 hPa996 hPa997 hPa999 hPa
Cloud cover94%100%100%100%100%100%100%100%
Heat index5°C (40°F)3°C (37°F)1°C (34°F)1°C (33°F)0°C (32°F)-0°C (31°F)-1°C (31°F)-1°C (30°F)
Dew point2°C (36°F)2°C (36°F)1°C (34°F)-0°C (31°F)-2°C (29°F)-2°C (28°F)-3°C (27°F)-3°C (27°F)
Wind
Speed22km/h (14mph)24km/h (15mph)28km/h (17mph)29km/h (18mph)30km/h (18mph)27km/h (17mph)23km/h (15mph)22km/h (14mph)
Gusts32km/h (20mph)38km/h (24mph)35km/h (22mph)36km/h (23mph)38km/h (24mph)35km/h (22mph)32km/h (20mph)29km/h (18mph)
Direction 135°
SE
86°
E
21°
NNE
14°
NNE
15°
NNE
20°
NNE
32°
NNE
44°
NE
Wind chill0°C (33°F)-2°C (28°F)-5°C (23°F)-5°C (22°F)-6°C (21°F)-7°C (20°F)-7°C (20°F)-7°C (19°F)
Waves
Height1.0m (3.3ft)1.2m (4.1ft)1.1m (3.7ft)1.3m (4.3ft)1.2m (4.0ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)
Direction 178°
S
180°
S
170°
S
161°
SSE
164°
SSE
167°
SSE
167°
SSE
60°
ENE
Period7.3 sec.11.6 sec.11.0 sec.10.9 sec.10.7 sec.5.7 sec.5.5 sec.5.3 sec.
Significant height1.2m (3.9ft)1.3m (4.3ft)1.1m (3.6ft)1.3m (4.3ft)0.7m (2.3ft)0.8m (2.6ft)1.3m (4.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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