Sea weather in Portland in the United States (USA) All the beach weather in Portland

All the essential weather information for enjoying the beach in Portland in the United States (USA), 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 Portland over the next 7 days?

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

Date Outside temp. Our opinion
Sunday 19 July 202658°F to 61°Fdiscouraged
Monday 20 July 202658°F to 63°Frecommended
Tuesday 21 July 202659°F to 63°Frecommended
Wednesday 22 July 202659°F to 63°Frecommended
Thursday 23 July 202659°F to 61°Frecommended
Friday 24 July 202658°F to 61°Frecommended
Saturday 25 July 202656°F to 59°Frecommended

Sea Weather: Your daily and hourly sea weather in Portland

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:41 and will set at 20:53 on the beach(es) of Portland. The outside temperature will be a high of 61°F t and a low of 58°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 16.8mph km/h (with gusts up to 26.1mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (56°F)14°C (57°F)14°C (57°F)16°C (60°F)15°C (58°F)14°C (58°F)14°C (57°F)14°C (58°F)
Perceived temperature12°C (53°F)12°C (54°F)12°C (54°F)16°C (60°F)13°C (55°F)12°C (54°F)12°C (53°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity92%90%88%82%83%83%85%91%
Barometric pressure1019 hPa1019 hPa1019 hPa1019 hPa1018 hPa1017 hPa1015 hPa1015 hPa
Cloud cover38%27%24%4%8%6%5%16%
Heat index14°C (56°F)14°C (57°F)14°C (57°F)16°C (60°F)15°C (58°F)14°C (58°F)14°C (57°F)14°C (58°F)
Dew point12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (53°F)11°C (53°F)11°C (52°F)13°C (55°F)
Wind
Speed23km/h (14mph)21km/h (13mph)22km/h (14mph)21km/h (13mph)27km/h (17mph)27km/h (17mph)27km/h (17mph)24km/h (15mph)
Gusts35km/h (22mph)31km/h (19mph)32km/h (20mph)29km/h (18mph)42km/h (26mph)32km/h (20mph)33km/h (21mph)38km/h (24mph)
Direction
N

N

N
343°
NNW
336°
NNW
341°
NNW
349°
N
359°
N
Wind chill12°C (53°F)12°C (54°F)12°C (54°F)16°C (60°F)13°C (55°F)12°C (54°F)12°C (53°F)12°C (54°F)
Waves
Height1.1m (3.7ft)1.2m (3.8ft)1.2m (3.8ft)1.1m (3.7ft)1.2m (3.9ft)1.2m (4.1ft)1.3m (4.3ft)1.4m (4.5ft)
Direction 277°
W
278°
W
278°
W
279°
W
279°
W
295°
WNW
297°
WNW
299°
WNW
Period8.4 sec.8.0 sec.7.5 sec.8.7 sec.14.4 sec.14.3 sec.14.2 sec.7.5 sec.
Significant height1.0m (3.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:42 and will set at 20:52 on the beach(es) of Portland. The outside temperature will be a high of 63°F t and a low of 58°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 17.4mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)14°C (58°F)15°C (59°F)16°C (62°F)15°C (60°F)15°C (58°F)15°C (59°F)16°C (61°F)
Perceived temperature13°C (55°F)13°C (56°F)14°C (58°F)16°C (62°F)15°C (60°F)15°C (58°F)15°C (59°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%89%86%80%83%80%78%84%
Barometric pressure1015 hPa1014 hPa1014 hPa1014 hPa1014 hPa1014 hPa1014 hPa1014 hPa
Cloud cover23%10%100%98%100%7%6%8%
Heat index14°C (58°F)14°C (58°F)15°C (59°F)16°C (62°F)15°C (60°F)15°C (58°F)15°C (59°F)16°C (61°F)
Dew point13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)12°C (54°F)11°C (52°F)11°C (52°F)13°C (56°F)
Wind
Speed17km/h (11mph)14km/h (9mph)10km/h (6mph)10km/h (6mph)9km/h (6mph)8km/h (5mph)8km/h (5mph)10km/h (6mph)
Gusts28km/h (18mph)24km/h (15mph)17km/h (10mph)17km/h (10mph)17km/h (10mph)15km/h (10mph)16km/h (10mph)22km/h (14mph)
Direction
N
358°
N
355°
N
325°
NW
295°
WNW
304°
WNW
330°
NNW

N
Wind chill13°C (55°F)13°C (56°F)14°C (58°F)16°C (62°F)15°C (60°F)15°C (58°F)15°C (59°F)16°C (61°F)
Waves
Height1.4m (4.6ft)1.4m (4.6ft)1.4m (4.5ft)1.3m (4.3ft)1.3m (4.2ft)1.2m (4.1ft)1.2m (4.0ft)1.2m (3.9ft)
Direction 300°
WNW
298°
WNW
299°
WNW
300°
WNW
301°
WNW
302°
WNW
302°
WNW
303°
WNW
Period7.6 sec.7.8 sec.7.8 sec.7.8 sec.7.9 sec.7.9 sec.8.0 sec.8.0 sec.
Significant height0.6m (2ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:43 and will set at 20:51 on the beach(es) of Portland. The outside temperature will be a high of 63°F t and a low of 59°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 8.7mph km/h (with gusts up to 18mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)16°C (61°F)16°C (60°F)16°C (60°F)
Perceived temperature16°C (61°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)16°C (61°F)16°C (60°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%85%82%80%82%80%82%88%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1015 hPa1014 hPa1014 hPa1015 hPa
Cloud cover10%23%49%46%14%9%7%11%
Heat index16°C (61°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)16°C (61°F)16°C (60°F)16°C (60°F)
Dew point13°C (56°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)14°C (56°F)
Wind
Speed7km/h (4mph)3km/h (2mph)4km/h (2mph)6km/h (4mph)12km/h (7mph)14km/h (9mph)13km/h (8mph)8km/h (5mph)
Gusts14km/h (9mph)6km/h (4mph)7km/h (5mph)11km/h (7mph)24km/h (15mph)29km/h (18mph)27km/h (17mph)16km/h (10mph)
Direction
N
356°
N
294°
WNW
316°
NW
327°
NNW
339°
NNW
320°
NW
358°
N
Wind chill16°C (61°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)16°C (61°F)16°C (60°F)16°C (60°F)
Waves
Height1.1m (3.7ft)1.1m (3.6ft)1.0m (3.4ft)1.0m (3.3ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)
Direction 302°
WNW
302°
WNW
302°
WNW
303°
WNW
303°
WNW
304°
NW
305°
NW
305°
NW
Period8.0 sec.7.9 sec.7.9 sec.7.8 sec.7.8 sec.7.8 sec.7.8 sec.7.7 sec.
Significant height0.4m (1.3ft)0.3m (1ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:44 and will set at 20:50 on the beach(es) of Portland. The outside temperature will be a high of 63°F t and a low of 59°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 8.7mph km/h (with gusts up to 16.8mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)15°C (59°F)16°C (60°F)16°C (61°F)16°C (62°F)16°C (60°F)15°C (60°F)16°C (60°F)
Perceived temperature16°C (60°F)15°C (59°F)16°C (60°F)16°C (61°F)16°C (62°F)16°C (60°F)15°C (60°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%85%83%82%82%83%85%91%
Barometric pressure1014 hPa1014 hPa1014 hPa1016 hPa1014 hPa1013 hPa1012 hPa1013 hPa
Cloud cover11%4%0%15%23%9%7%12%
Heat index16°C (60°F)15°C (59°F)16°C (60°F)16°C (61°F)16°C (62°F)16°C (60°F)15°C (60°F)16°C (60°F)
Dew point13°C (55°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)14°C (57°F)
Wind
Speed5km/h (3mph)2km/h (1mph)3km/h (2mph)10km/h (6mph)14km/h (9mph)9km/h (6mph)10km/h (6mph)3km/h (2mph)
Gusts11km/h (7mph)4km/h (3mph)5km/h (3mph)15km/h (9mph)27km/h (17mph)16km/h (10mph)19km/h (11mph)5km/h (3mph)
Direction
N
46°
NE
46°
NE
213°
SSW
297°
WNW
305°
NW
315°
NW
24°
NNE
Wind chill16°C (60°F)15°C (59°F)16°C (60°F)16°C (61°F)16°C (62°F)16°C (60°F)15°C (60°F)16°C (60°F)
Waves
Height1.0m (3.3ft)1.0m (3.4ft)1.1m (3.5ft)1.1m (3.6ft)1.1m (3.7ft)1.1m (3.7ft)1.2m (3.8ft)1.2m (3.9ft)
Direction 306°
NW
305°
NW
305°
NW
305°
NW
305°
NW
305°
NW
306°
NW
306°
NW
Period7.8 sec.8.0 sec.8.1 sec.8.3 sec.8.4 sec.8.4 sec.8.5 sec.8.3 sec.
Significant height1.4m (4.6ft)1.0m (3.3ft)0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)1.0m (3.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:45 and will set at 20:49 on the beach(es) of Portland. The outside temperature will be a high of 61°F t and a low of 59°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 8.7mph km/h (with gusts up to 13.1mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)15°C (59°F)15°C (59°F)16°C (60°F)16°C (60°F)15°C (60°F)15°C (59°F)15°C (59°F)
Perceived temperature15°C (59°F)15°C (59°F)15°C (59°F)16°C (60°F)16°C (60°F)15°C (60°F)14°C (58°F)15°C (59°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity93%94%94%94%91%90%88%86%
Barometric pressure1014 hPa1013 hPa1014 hPa1014 hPa1015 hPa1015 hPa1015 hPa1015 hPa
Cloud cover35%51%59%59%57%50%41%87%
Heat index15°C (59°F)15°C (59°F)15°C (59°F)16°C (60°F)16°C (60°F)15°C (60°F)15°C (59°F)15°C (59°F)
Dew point14°C (57°F)14°C (57°F)14°C (57°F)15°C (58°F)14°C (58°F)14°C (57°F)13°C (55°F)13°C (55°F)
Wind
Speed7km/h (4mph)7km/h (4mph)8km/h (5mph)13km/h (8mph)14km/h (9mph)13km/h (8mph)10km/h (6mph)9km/h (5mph)
Gusts12km/h (7mph)11km/h (7mph)12km/h (8mph)20km/h (13mph)21km/h (13mph)18km/h (11mph)15km/h (10mph)13km/h (8mph)
Direction 185°
S
157°
SSE
157°
SSE
202°
SSW
226°
SW
237°
WSW
217°
SW
214°
SW
Wind chill15°C (59°F)15°C (59°F)15°C (59°F)16°C (60°F)16°C (60°F)15°C (60°F)14°C (58°F)15°C (59°F)
Waves
Height1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (4.0ft)1.2m (4.0ft)1.2m (4.1ft)1.2m (4.1ft)1.3m (4.1ft)
Direction 306°
NW
305°
NW
305°
NW
305°
NW
305°
NW
306°
NW
307°
NW
306°
NW
Period8.6 sec.8.6 sec.8.5 sec.8.5 sec.8.6 sec.8.7 sec.8.7 sec.8.7 sec.
Significant height0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:46 and will set at 20:48 on the beach(es) of Portland. The outside temperature will be a high of 61°F t and a low of 58°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 8.1mph km/h (with gusts up to 12.4mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)15°C (60°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (58°F)
Perceived temperature16°C (60°F)15°C (60°F)15°C (59°F)15°C (59°F)15°C (58°F)15°C (59°F)15°C (58°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%80%79%80%81%82%83%84%
Barometric pressure1016 hPa1016 hPa1017 hPa1018 hPa1019 hPa1019 hPa1019 hPa1019 hPa
Cloud cover82%80%77%78%44%18%41%65%
Heat index16°C (60°F)15°C (60°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (58°F)
Dew point13°C (55°F)12°C (54°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)
Wind
Speed10km/h (6mph)9km/h (6mph)8km/h (5mph)8km/h (5mph)9km/h (5mph)12km/h (8mph)13km/h (8mph)13km/h (8mph)
Gusts14km/h (9mph)14km/h (8mph)12km/h (7mph)11km/h (7mph)13km/h (8mph)19km/h (12mph)20km/h (13mph)20km/h (13mph)
Direction 205°
SSW
211°
SSW
220°
SW
237°
WSW
268°
W
304°
NW
331°
NNW
350°
N
Wind chill16°C (60°F)15°C (60°F)15°C (59°F)15°C (59°F)15°C (58°F)15°C (59°F)15°C (58°F)14°C (57°F)
Waves
Height1.3m (4.2ft)1.3m (4.2ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)
Direction 305°
NW
306°
NW
306°
NW
306°
NW
307°
NW
308°
NW
308°
NW
309°
NW
Period8.8 sec.8.8 sec.8.7 sec.8.6 sec.8.4 sec.8.3 sec.8.1 sec.7.8 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 05:47 and will set at 20:47 on the beach(es) of Portland. The outside temperature will be a high of 59°F t and a low of 56°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 8.7mph km/h (with gusts up to 14.9mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)13°C (56°F)13°C (56°F)15°C (58°F)15°C (59°F)15°C (58°F)15°C (58°F)14°C (58°F)
Perceived temperature13°C (56°F)13°C (55°F)14°C (57°F)14°C (58°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%87%85%81%78%78%83%89%
Barometric pressure1020 hPa1020 hPa1021 hPa1021 hPa1021 hPa1021 hPa1020 hPa1020 hPa
Cloud cover67%48%48%39%14%5%12%27%
Heat index14°C (57°F)13°C (56°F)13°C (56°F)15°C (58°F)15°C (59°F)15°C (58°F)15°C (58°F)14°C (58°F)
Dew point11°C (53°F)11°C (52°F)11°C (52°F)11°C (53°F)11°C (52°F)11°C (52°F)12°C (53°F)13°C (55°F)
Wind
Speed10km/h (6mph)8km/h (5mph)5km/h (3mph)9km/h (5mph)13km/h (8mph)14km/h (9mph)13km/h (8mph)10km/h (6mph)
Gusts17km/h (10mph)13km/h (8mph)7km/h (4mph)12km/h (8mph)21km/h (13mph)24km/h (15mph)23km/h (14mph)16km/h (10mph)
Direction 139°
SE
51°
NE
53°
NE
219°
SW
309°
NW
319°
NW
336°
NNW
120°
ESE
Wind chill13°C (56°F)13°C (55°F)14°C (57°F)14°C (58°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)
Waves
Height1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 310°
NW
309°
NW
309°
NW
261°
W
238°
WSW
237°
WSW
237°
WSW
237°
WSW
Period7.6 sec.7.4 sec.7.2 sec.7.1 sec.7.0 sec.8.3 sec.8.8 sec.8.5 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)15°C (59°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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