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
Thursday 4 December 202545°F to 49°Frecommended
Friday 5 December 202543°F to 47°Fdiscouraged
Saturday 6 December 202545°F to 47°Fnot recommended
Sunday 7 December 202545°F to 47°Fnot recommended
Monday 8 December 202541°F to 47°Fnot recommended
Tuesday 9 December 202540°F to 43°Fnot recommended
Wednesday 10 December 202538°F to 41°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Ketchikan

Sea weather on Thursday 4 December 2025

On Thursday 4 December 2025, the sun will rise at 07:55 and will set at 15:19 on the beach(es) of Ketchikan. The outside temperature will be a high of 49°F t and a low of 45°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 10.6mph km/h (with gusts up to 16.8mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (47°F)8°C (47°F)9°C (47°F)8°C (46°F)7°C (45°F)7°C (44°F)8°C (46°F)
Perceived temperature6°C (42°F)6°C (42°F)6°C (43°F)6°C (44°F)6°C (42°F)6°C (43°F)7°C (44°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity95%93%91%87%86%85%84%84%
Barometric pressure1019 hPa1019 hPa1019 hPa1020 hPa1020 hPa1020 hPa1018 hPa1016 hPa
Cloud cover95%78%91%51%14%5%7%10%
Heat index8°C (47°F)8°C (47°F)8°C (47°F)9°C (47°F)8°C (46°F)7°C (45°F)7°C (44°F)8°C (46°F)
Dew point8°C (46°F)7°C (45°F)7°C (45°F)6°C (44°F)6°C (42°F)5°C (41°F)4°C (40°F)5°C (42°F)
Wind
Speed17km/h (11mph)15km/h (9mph)14km/h (9mph)13km/h (8mph)12km/h (7mph)6km/h (4mph)3km/h (2mph)6km/h (4mph)
Gusts27km/h (17mph)24km/h (15mph)25km/h (15mph)24km/h (15mph)23km/h (14mph)12km/h (7mph)5km/h (3mph)10km/h (6mph)
Direction 205°
SSW
217°
SW
261°
W
273°
W
271°
W
296°
WNW
210°
SSW
124°
ESE
Wind chill6°C (42°F)6°C (42°F)6°C (43°F)6°C (44°F)6°C (42°F)6°C (43°F)7°C (44°F)7°C (44°F)
Waves
Height0.8m (2.8ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (1.9ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.5ft)0.4m (1.4ft)
Direction 250°
WSW
250°
WSW
249°
WSW
249°
WSW
249°
WSW
248°
WSW
248°
WSW
251°
WSW
Period6.0 sec.12.7 sec.12.3 sec.12.1 sec.12.0 sec.11.9 sec.11.7 sec.11.4 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
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 Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 07:57 and will set at 15:18 on the beach(es) of Ketchikan. The outside temperature will be a high of 47°F t and a low of 43°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 16.2mph km/h (with gusts up to 23mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)7°C (44°F)7°C (44°F)6°C (43°F)6°C (43°F)6°C (42°F)6°C (44°F)
Perceived temperature6°C (42°F)3°C (38°F)3°C (37°F)2°C (36°F)3°C (37°F)2°C (36°F)3°C (38°F)6°C (43°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%91%87%85%82%80%79%78%
Barometric pressure1014 hPa1010 hPa1005 hPa1001 hPa1000 hPa1000 hPa1001 hPa1002 hPa
Cloud cover65%100%100%100%65%24%21%48%
Heat index8°C (46°F)7°C (45°F)7°C (44°F)7°C (44°F)6°C (43°F)6°C (43°F)6°C (42°F)6°C (44°F)
Dew point5°C (42°F)6°C (42°F)5°C (40°F)4°C (40°F)3°C (38°F)3°C (37°F)3°C (37°F)3°C (37°F)
Wind
Speed12km/h (7mph)24km/h (15mph)23km/h (14mph)26km/h (16mph)20km/h (12mph)20km/h (13mph)12km/h (7mph)4km/h (3mph)
Gusts17km/h (11mph)34km/h (21mph)33km/h (21mph)37km/h (23mph)29km/h (18mph)31km/h (19mph)19km/h (12mph)6km/h (4mph)
Direction 141°
SE
102°
ESE
45°
NE
12°
NNE

N
351°
N
337°
NNW
63°
ENE
Wind chill6°C (42°F)3°C (38°F)3°C (37°F)2°C (36°F)3°C (37°F)2°C (36°F)3°C (38°F)6°C (43°F)
Waves
Height0.4m (1.3ft)0.4m (1.4ft)0.5m (1.6ft)0.6m (1.8ft)0.5m (1.7ft)0.5m (1.8ft)0.5m (1.5ft)0.4m (1.4ft)
Direction 251°
WSW
251°
WSW
251°
WSW
252°
WSW
258°
WSW
255°
WSW
256°
WSW
256°
WSW
Period11.3 sec.11.2 sec.11.3 sec.4.2 sec.4.9 sec.12.5 sec.12.2 sec.12.1 sec.
Significant height0.3m (1ft)0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.2m (0.7ft)0.2m (0.7ft)
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 Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 07:58 and will set at 15:18 on the beach(es) of Ketchikan. The outside temperature will be a high of 47°F t and a low of 45°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 30.5mph km/h (with gusts up to 33.6mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)7°C (45°F)7°C (45°F)8°C (46°F)7°C (45°F)7°C (45°F)7°C (44°F)8°C (46°F)
Perceived temperature6°C (43°F)5°C (40°F)3°C (37°F)3°C (38°F)3°C (37°F)3°C (37°F)2°C (36°F)2°C (36°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%82%90%82%83%79%81%79%
Barometric pressure1003 hPa1002 hPa1002 hPa1003 hPa1005 hPa1006 hPa1005 hPa1004 hPa
Cloud cover100%100%100%100%100%70%82%100%
Heat index7°C (45°F)7°C (45°F)7°C (45°F)8°C (46°F)7°C (45°F)7°C (45°F)7°C (44°F)8°C (46°F)
Dew point4°C (39°F)5°C (40°F)6°C (42°F)5°C (40°F)4°C (40°F)4°C (39°F)4°C (39°F)4°C (40°F)
Wind
Speed5km/h (3mph)15km/h (10mph)33km/h (20mph)29km/h (18mph)32km/h (20mph)30km/h (19mph)34km/h (21mph)49km/h (30mph)
Gusts8km/h (5mph)22km/h (14mph)46km/h (29mph)43km/h (27mph)47km/h (29mph)47km/h (29mph)36km/h (22mph)54km/h (34mph)
Direction 174°
S
185°
S
201°
SSW
225°
SW
224°
SW
207°
SSW
171°
S
163°
SSE
Wind chill6°C (43°F)5°C (40°F)3°C (37°F)3°C (38°F)3°C (37°F)3°C (37°F)2°C (36°F)2°C (36°F)
Waves
Height0.5m (1.6ft)0.8m (2.6ft)0.8m (2.7ft)0.9m (3.1ft)1.0m (3.1ft)0.9m (3.0ft)1.1m (3.7ft)1.8m (5.9ft)
Direction 250°
WSW
249°
WSW
251°
WSW
219°
SW
210°
SSW
206°
SSW
191°
SSW
177°
S
Period11.6 sec.11.7 sec.11.2 sec.11.0 sec.10.8 sec.10.5 sec.10.3 sec.10.4 sec.
Significant height0.4m (1.3ft)1.3m (4.3ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)0.9m (3ft)1.3m (4.3ft)2.2m (7.2ft)
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 Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 07:59 and will set at 15:17 on the beach(es) of Ketchikan. The outside temperature will be a high of 47°F t and a low of 45°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 37.3mph km/h (with gusts up to 40.4mph). Wave height will be up to 10.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (46°F)8°C (46°F)7°C (45°F)8°C (46°F)7°C (44°F)7°C (45°F)7°C (45°F)
Perceived temperature3°C (37°F)2°C (35°F)3°C (38°F)3°C (37°F)3°C (37°F)2°C (36°F)2°C (36°F)2°C (35°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%91%82%83%79%84%83%83%
Barometric pressure1001 hPa997 hPa998 hPa1002 hPa1003 hPa1004 hPa1004 hPa1003 hPa
Cloud cover100%100%74%100%93%69%100%100%
Heat index8°C (47°F)8°C (46°F)8°C (46°F)7°C (45°F)8°C (46°F)7°C (44°F)7°C (45°F)7°C (45°F)
Dew point5°C (40°F)6°C (43°F)5°C (40°F)5°C (40°F)4°C (39°F)4°C (40°F)4°C (40°F)4°C (40°F)
Wind
Speed56km/h (35mph)60km/h (37mph)29km/h (18mph)36km/h (22mph)39km/h (24mph)34km/h (21mph)34km/h (21mph)47km/h (29mph)
Gusts56km/h (35mph)65km/h (40mph)41km/h (26mph)51km/h (32mph)56km/h (35mph)50km/h (31mph)51km/h (32mph)51km/h (32mph)
Direction 155°
SSE
151°
SSE
221°
SW
182°
S
191°
S
206°
SSW
185°
S
169°
S
Wind chill3°C (37°F)2°C (35°F)3°C (38°F)3°C (37°F)3°C (37°F)2°C (36°F)2°C (36°F)2°C (35°F)
Waves
Height2.6m (8.6ft)3.1m (10.3ft)2.6m (8.6ft)1.7m (5.5ft)1.4m (4.5ft)1.6m (5.4ft)1.7m (5.4ft)1.8m (6.0ft)
Direction 173°
S
168°
SSE
170°
S
166°
SSE
168°
SSE
187°
S
191°
SSW
185°
S
Period10.7 sec.10.6 sec.10.6 sec.10.7 sec.10.6 sec.11.1 sec.11.5 sec.11.6 sec.
Significant height2.7m (8.9ft)2.8m (9.2ft)1.3m (4.3ft)1.0m (3.3ft)1.2m (3.9ft)1.5m (4.9ft)1.6m (5.2ft)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 Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 08:00 and will set at 15:17 on the beach(es) of Ketchikan. The outside temperature will be a high of 47°F t and a low of 41°F. Precipitation is in the forecast (0.5in 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 54.1mph km/h (with gusts up to 56.6mph). Wave height will be up to 13.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)7°C (45°F)8°C (46°F)7°C (45°F)8°C (46°F)7°C (44°F)7°C (44°F)6°C (44°F)
Perceived temperature1°C (34°F)0°C (32°F)1°C (33°F)3°C (37°F)3°C (38°F)2°C (36°F)1°C (34°F)1°C (34°F)
Precipitation0.1in0.1in0.1in0.1in0in0.1in0in0in
Humidity90%91%91%86%79%90%82%75%
Barometric pressure1000 hPa995 hPa988 hPa988 hPa989 hPa988 hPa991 hPa994 hPa
Cloud cover100%100%100%61%100%100%100%95%
Heat index7°C (45°F)7°C (45°F)8°C (46°F)7°C (45°F)8°C (46°F)7°C (44°F)7°C (44°F)6°C (44°F)
Dew point6°C (42°F)6°C (42°F)6°C (43°F)5°C (41°F)4°C (40°F)5°C (42°F)4°C (39°F)2°C (36°F)
Wind
Speed67km/h (41mph)82km/h (51mph)87km/h (54mph)37km/h (23mph)39km/h (24mph)38km/h (23mph)43km/h (27mph)42km/h (26mph)
Gusts67km/h (41mph)83km/h (51mph)91km/h (57mph)53km/h (33mph)42km/h (26mph)55km/h (34mph)50km/h (31mph)58km/h (36mph)
Direction 160°
SSE
158°
SSE
151°
SSE
201°
SSW
177°
S
190°
S
254°
WSW
230°
SW
Wind chill1°C (34°F)0°C (32°F)1°C (33°F)3°C (37°F)3°C (38°F)2°C (36°F)1°C (34°F)1°C (34°F)
Waves
Height2.1m (6.8ft)2.7m (8.9ft)3.5m (11.5ft)4.1m (13.4ft)3.5m (11.6ft)2.3m (7.7ft)1.8m (5.8ft)1.7m (5.6ft)
Direction 175°
S
169°
SSE
165°
SSE
163°
SSE
161°
SSE
164°
SSE
248°
WSW
248°
WSW
Period11.6 sec.11.8 sec.11.9 sec.12.1 sec.12.2 sec.12.4 sec.12.7 sec.9.1 sec.
Significant height1.8m (5.9ft)2.4m (7.9ft)3.0m (9.8ft)3.0m (9.8ft)2.6m (8.5ft)1.2m (3.9ft)1.5m (4.9ft)1.5m (4.9ft)
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 Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 08:02 and will set at 15:17 on the beach(es) of Ketchikan. The outside temperature will be a high of 43°F t and a low of 40°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 28.6mph km/h (with gusts up to 37.9mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (41°F)6°C (43°F)6°C (43°F)6°C (42°F)4°C (39°F)5°C (40°F)5°C (40°F)5°C (41°F)
Perceived temperature-1°C (30°F)0°C (33°F)1°C (33°F)0°C (33°F)-1°C (31°F)1°C (34°F)2°C (36°F)4°C (38°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%63%62%71%92%78%74%71%
Barometric pressure998 hPa1002 hPa1003 hPa1004 hPa1004 hPa1003 hPa1002 hPa999 hPa
Cloud cover63%79%85%81%100%79%52%56%
Heat index5°C (41°F)6°C (43°F)6°C (43°F)6°C (42°F)4°C (39°F)5°C (40°F)5°C (40°F)5°C (41°F)
Dew point1°C (35°F)-1°C (31°F)-1°C (31°F)1°C (34°F)3°C (37°F)1°C (34°F)0°C (33°F)0°C (32°F)
Wind
Speed46km/h (28mph)45km/h (28mph)39km/h (24mph)38km/h (23mph)24km/h (15mph)17km/h (11mph)10km/h (6mph)6km/h (4mph)
Gusts60km/h (38mph)61km/h (38mph)53km/h (33mph)41km/h (26mph)33km/h (20mph)24km/h (15mph)16km/h (10mph)9km/h (5mph)
Direction 258°
WSW
243°
WSW
223°
SW
206°
SSW
192°
SSW
198°
SSW
180°
S
82°
E
Wind chill-1°C (30°F)0°C (33°F)1°C (33°F)0°C (33°F)-1°C (31°F)1°C (34°F)2°C (36°F)4°C (38°F)
Waves
Height1.7m (5.5ft)1.5m (4.9ft)1.7m (5.7ft)1.6m (5.4ft)1.5m (5.0ft)1.9m (6.3ft)1.8m (6.0ft)1.5m (4.8ft)
Direction 252°
WSW
252°
WSW
250°
WSW
248°
WSW
248°
WSW
186°
S
175°
S
250°
WSW
Period9.1 sec.12.9 sec.8.3 sec.12.6 sec.12.8 sec.12.9 sec.12.8 sec.6.3 sec.
Significant height1.8m (5.9ft)1.1m (3.6ft)1.9m (6.2ft)1.3m (4.3ft)1.3m (4.3ft)1.8m (5.9ft)1.2m (3.9ft)0.5m (1.6ft)
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 Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 08:03 and will set at 15:16 on the beach(es) of Ketchikan. The outside temperature will be a high of 41°F t and a low of 38°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 19.3mph km/h (with gusts up to 25.5mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (40°F)4°C (40°F)4°C (39°F)4°C (39°F)4°C (38°F)3°C (37°F)4°C (40°F)5°C (41°F)
Perceived temperature2°C (36°F)0°C (33°F)0°C (32°F)1°C (34°F)2°C (35°F)-1°C (30°F)1°C (33°F)0°C (32°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%78%78%75%72%82%74%77%
Barometric pressure998 hPa998 hPa1000 hPa1003 hPa1007 hPa1009 hPa1010 hPa1010 hPa
Cloud cover79%89%11%7%29%71%88%100%
Heat index4°C (40°F)4°C (40°F)4°C (39°F)4°C (39°F)4°C (38°F)3°C (37°F)4°C (40°F)5°C (41°F)
Dew point1°C (33°F)1°C (34°F)1°C (33°F)-0°C (32°F)-1°C (30°F)0°C (32°F)0°C (32°F)1°C (34°F)
Wind
Speed8km/h (5mph)19km/h (12mph)19km/h (12mph)12km/h (7mph)8km/h (5mph)19km/h (12mph)16km/h (10mph)31km/h (19mph)
Gusts12km/h (7mph)26km/h (16mph)26km/h (16mph)16km/h (10mph)12km/h (7mph)28km/h (17mph)25km/h (15mph)41km/h (25mph)
Direction 38°
NE
337°
NNW
331°
NNW
328°
NNW
61°
ENE
102°
ESE
109°
ESE
176°
S
Wind chill2°C (36°F)0°C (33°F)0°C (32°F)1°C (34°F)2°C (35°F)-1°C (30°F)1°C (33°F)0°C (32°F)
Waves
Height1.2m (4.1ft)1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)1.1m (3.7ft)1.0m (3.2ft)0.8m (2.7ft)0.7m (2.3ft)
Direction 250°
WSW
250°
WSW
250°
WSW
249°
WSW
249°
WSW
250°
WSW
251°
WSW
252°
WSW
Period12.4 sec.12.3 sec.12.3 sec.6.6 sec.6.5 sec.12.0 sec.12.0 sec.11.9 sec.
Significant height0.8m (2.6ft)1.1m (3.6ft)1.2m (3.9ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)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 chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units