Sea weather in Foz do Arelho in Portugal All the beach weather in Foz do Arelho

All the essential weather information for enjoying the beach in Foz do Arelho in Portugal, 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 Foz do Arelho over the next 7 days?

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

Date Outside temp. Our opinion
Saturday 18 July 202667°F to 68°Fdiscouraged
Sunday 19 July 202667°F to 68°Fdiscouraged
Monday 20 July 202665°F to 70°Frecommended
Tuesday 21 July 202663°F to 70°Frecommended
Wednesday 22 July 202667°F to 70°Frecommended
Thursday 23 July 202663°F to 68°Frecommended
Friday 24 July 202667°F to 68°Frecommended

Sea Weather: Your daily and hourly sea weather in Foz do Arelho

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 06:24 and will set at 21:01 on the beach(es) of Foz do Arelho. The outside temperature will be a high of 68°F t and a low of 67°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 13.1mph km/h (with gusts up to 20.5mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)19°C (67°F)
Perceived temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%90%89%85%82%82%85%91%
Barometric pressure1018 hPa1017 hPa1017 hPa1017 hPa1017 hPa1017 hPa1016 hPa1017 hPa
Cloud cover34%88%22%29%21%7%25%64%
Heat index19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)19°C (67°F)
Dew point18°C (64°F)17°C (63°F)17°C (63°F)18°C (64°F)17°C (63°F)17°C (62°F)17°C (63°F)18°C (64°F)
Wind
Speed20km/h (13mph)18km/h (11mph)16km/h (10mph)16km/h (10mph)16km/h (10mph)20km/h (12mph)21km/h (13mph)21km/h (13mph)
Gusts29km/h (18mph)26km/h (16mph)24km/h (15mph)21km/h (13mph)23km/h (14mph)32km/h (20mph)33km/h (20mph)32km/h (20mph)
Direction 352°
N
346°
NNW
337°
NNW
329°
NNW
318°
NW
323°
NW
334°
NNW
348°
NNW
Wind chill19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)19°C (67°F)
Waves
Height0.6m (2.0ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.8ft)0.6m (1.8ft)0.6m (1.9ft)0.6m (2.0ft)0.7m (2.2ft)
Direction 324°
NW
325°
NW
323°
NW
321°
NW
317°
NW
322°
NW
325°
NW
326°
NW
Period7.8 sec.7.8 sec.8.3 sec.8.3 sec.8.0 sec.7.9 sec.7.9 sec.7.9 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 06:25 and will set at 21:01 on the beach(es) of Foz do Arelho. The outside temperature will be a high of 68°F t and a low of 67°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 13.1mph km/h (with gusts up to 18.6mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)
Perceived temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%90%89%83%79%80%84%91%
Barometric pressure1017 hPa1016 hPa1016 hPa1017 hPa1018 hPa1018 hPa1017 hPa1018 hPa
Cloud cover74%27%77%50%14%12%16%33%
Heat index19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)
Dew point18°C (64°F)17°C (63°F)17°C (63°F)17°C (63°F)16°C (62°F)16°C (61°F)17°C (62°F)18°C (65°F)
Wind
Speed21km/h (13mph)17km/h (11mph)15km/h (9mph)14km/h (9mph)14km/h (9mph)17km/h (10mph)17km/h (10mph)13km/h (8mph)
Gusts30km/h (19mph)25km/h (16mph)22km/h (13mph)19km/h (11mph)20km/h (13mph)25km/h (16mph)26km/h (16mph)21km/h (13mph)
Direction 343°
NNW
343°
NNW
334°
NNW
331°
NNW
313°
NW
313°
NW
319°
NW
316°
NW
Wind chill19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (67°F)20°C (67°F)
Waves
Height0.8m (2.6ft)0.8m (2.5ft)0.8m (2.5ft)0.8m (2.7ft)0.8m (2.7ft)0.8m (2.6ft)0.8m (2.5ft)0.8m (2.5ft)
Direction 326°
NW
325°
NW
327°
NNW
339°
NNW
343°
NNW
343°
NNW
338°
NNW
331°
NNW
Period7.9 sec.7.8 sec.5.1 sec.5.9 sec.6.0 sec.5.9 sec.5.5 sec.6.3 sec.
Significant height0.7m (2.3ft)0.5m (1.6ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 06:26 and will set at 21:00 on the beach(es) of Foz do Arelho. The outside temperature will be a high of 70°F t and a low of 65°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 18.6mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (70°F)18°C (65°F)19°C (67°F)20°C (68°F)
Perceived temperature20°C (67°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (70°F)18°C (65°F)19°C (67°F)20°C (68°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity93%86%82%79%79%81%84%90%
Barometric pressure1017 hPa1017 hPa1017 hPa1018 hPa1018 hPa1018 hPa1018 hPa1018 hPa
Cloud cover88%83%94%83%44%0%5%11%
Heat index20°C (67°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (70°F)18°C (65°F)19°C (67°F)20°C (68°F)
Dew point18°C (65°F)18°C (64°F)17°C (63°F)17°C (62°F)17°C (63°F)15°C (59°F)17°C (62°F)18°C (65°F)
Wind
Speed15km/h (9mph)17km/h (11mph)13km/h (8mph)11km/h (7mph)13km/h (8mph)14km/h (9mph)15km/h (9mph)14km/h (9mph)
Gusts23km/h (14mph)26km/h (16mph)20km/h (12mph)16km/h (10mph)20km/h (12mph)30km/h (19mph)27km/h (17mph)22km/h (14mph)
Direction 324°
NW
331°
NNW
335°
NNW
320°
NW
308°
NW
310°
NW
315°
NW
322°
NW
Wind chill20°C (67°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (70°F)18°C (65°F)19°C (67°F)20°C (68°F)
Waves
Height0.8m (2.5ft)0.8m (2.7ft)0.9m (2.8ft)0.9m (2.8ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.8ft)
Direction 298°
WNW
303°
WNW
329°
NNW
331°
NNW
325°
NW
328°
NNW
325°
NW
326°
NW
Period8.5 sec.7.1 sec.6.8 sec.6.8 sec.6.8 sec.6.8 sec.6.9 sec.7.2 sec.
Significant height0.6m (2ft)0.7m (2.3ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 06:26 and will set at 20:59 on the beach(es) of Foz do Arelho. The outside temperature will be a high of 70°F t and a low of 63°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 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (68°F)19°C (67°F)19°C (67°F)20°C (69°F)20°C (69°F)19°C (66°F)18°C (64°F)20°C (68°F)
Perceived temperature20°C (68°F)19°C (67°F)19°C (67°F)20°C (69°F)20°C (69°F)19°C (66°F)18°C (64°F)20°C (68°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%90%90%83%78%76%80%89%
Barometric pressure1018 hPa1017 hPa1017 hPa1018 hPa1019 hPa1018 hPa1017 hPa1018 hPa
Cloud cover10%14%15%3%5%0%0%6%
Heat index20°C (68°F)19°C (67°F)19°C (67°F)20°C (69°F)20°C (69°F)19°C (66°F)18°C (64°F)20°C (68°F)
Dew point18°C (65°F)18°C (64°F)18°C (64°F)17°C (63°F)16°C (61°F)15°C (58°F)14°C (58°F)18°C (64°F)
Wind
Speed12km/h (8mph)9km/h (5mph)5km/h (3mph)6km/h (4mph)9km/h (6mph)14km/h (9mph)13km/h (8mph)12km/h (8mph)
Gusts20km/h (12mph)14km/h (9mph)8km/h (5mph)9km/h (6mph)15km/h (9mph)29km/h (18mph)27km/h (17mph)20km/h (13mph)
Direction 337°
NNW
352°
N
14°
NNE
350°
N
317°
NW
308°
NW
318°
NW
344°
NNW
Wind chill20°C (68°F)19°C (67°F)19°C (67°F)20°C (69°F)20°C (69°F)19°C (66°F)18°C (64°F)20°C (68°F)
Waves
Height0.8m (2.8ft)0.8m (2.7ft)0.8m (2.7ft)0.8m (2.8ft)0.8m (2.7ft)0.8m (2.6ft)0.7m (2.5ft)0.7m (2.3ft)
Direction 327°
NNW
329°
NNW
333°
NNW
337°
NNW
307°
NW
304°
NW
300°
WNW
297°
WNW
Period7.1 sec.7.1 sec.7.2 sec.7.7 sec.8.0 sec.8.0 sec.8.0 sec.7.8 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 06:27 and will set at 20:58 on the beach(es) of Foz do Arelho. The outside temperature will be a high of 70°F t and a low of 67°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 9.3mph km/h (with gusts up to 15.5mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)20°C (68°F)20°C (67°F)20°C (67°F)
Perceived temperature20°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)20°C (68°F)20°C (67°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%93%93%85%79%76%79%88%
Barometric pressure1017 hPa1017 hPa1017 hPa1017 hPa1018 hPa1017 hPa1017 hPa1018 hPa
Cloud cover20%30%33%12%0%5%5%8%
Heat index20°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)20°C (68°F)20°C (67°F)20°C (67°F)
Dew point18°C (65°F)18°C (64°F)18°C (64°F)18°C (64°F)15°C (59°F)16°C (60°F)16°C (60°F)18°C (64°F)
Wind
Speed12km/h (8mph)8km/h (5mph)5km/h (3mph)6km/h (4mph)10km/h (6mph)15km/h (9mph)10km/h (6mph)9km/h (6mph)
Gusts19km/h (12mph)13km/h (8mph)8km/h (5mph)9km/h (6mph)20km/h (13mph)25km/h (15mph)19km/h (12mph)15km/h (9mph)
Direction 355°
N

N
343°
NNW
325°
NW
291°
WNW
302°
WNW
313°
NW
334°
NNW
Wind chill20°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)20°C (68°F)20°C (67°F)20°C (67°F)
Waves
Height0.7m (2.2ft)0.6m (2.1ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (1.9ft)
Direction 295°
WNW
300°
WNW
298°
WNW
297°
WNW
298°
WNW
298°
WNW
296°
WNW
295°
WNW
Period7.4 sec.7.0 sec.6.9 sec.6.9 sec.6.9 sec.6.8 sec.6.7 sec.6.7 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 06:28 and will set at 20:58 on the beach(es) of Foz do Arelho. The outside temperature will be a high of 68°F t and a low of 63°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 18.6mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)18°C (65°F)17°C (63°F)20°C (67°F)
Perceived temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)18°C (65°F)17°C (63°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%91%91%83%78%76%81%89%
Barometric pressure1017 hPa1017 hPa1017 hPa1018 hPa1019 hPa1019 hPa1019 hPa1018 hPa
Cloud cover15%20%24%7%0%0%0%3%
Heat index19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)18°C (65°F)17°C (63°F)20°C (67°F)
Dew point18°C (64°F)17°C (63°F)17°C (63°F)17°C (63°F)15°C (59°F)14°C (58°F)14°C (57°F)18°C (64°F)
Wind
Speed9km/h (6mph)8km/h (5mph)8km/h (5mph)7km/h (4mph)11km/h (7mph)14km/h (9mph)14km/h (9mph)14km/h (9mph)
Gusts15km/h (9mph)13km/h (8mph)13km/h (8mph)9km/h (6mph)21km/h (13mph)30km/h (19mph)29km/h (18mph)23km/h (14mph)
Direction 350°
N
356°
N

N
320°
NW
315°
NW
313°
NW
329°
NNW

N
Wind chill19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)19°C (66°F)18°C (65°F)17°C (63°F)20°C (67°F)
Waves
Height0.6m (1.8ft)0.5m (1.8ft)0.5m (1.8ft)0.5m (1.8ft)0.6m (1.8ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)
Direction 296°
WNW
296°
WNW
297°
WNW
298°
WNW
299°
WNW
306°
NW
304°
NW
303°
WNW
Period6.5 sec.6.5 sec.6.5 sec.6.4 sec.6.4 sec.6.4 sec.6.4 sec.6.5 sec.
Significant height0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 06:29 and will set at 20:57 on the beach(es) of Foz do Arelho. The outside temperature will be a high of 68°F t and a low of 67°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 11.2mph km/h (with gusts up to 18mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (69°F)19°C (67°F)19°C (65°F)20°C (67°F)19°C (67°F)
Perceived temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (69°F)19°C (67°F)19°C (65°F)20°C (67°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%91%90%81%77%81%86%93%
Barometric pressure1020 hPa1019 hPa1019 hPa1020 hPa1020 hPa1020 hPa1019 hPa1020 hPa
Cloud cover10%10%10%0%0%0%13%44%
Heat index19°C (67°F)19°C (66°F)19°C (66°F)20°C (69°F)19°C (67°F)19°C (65°F)20°C (67°F)19°C (67°F)
Dew point18°C (64°F)18°C (64°F)17°C (63°F)17°C (63°F)15°C (59°F)15°C (59°F)17°C (63°F)18°C (65°F)
Wind
Speed13km/h (8mph)12km/h (7mph)11km/h (7mph)8km/h (5mph)14km/h (9mph)17km/h (10mph)18km/h (11mph)11km/h (7mph)
Gusts20km/h (13mph)19km/h (12mph)17km/h (11mph)12km/h (7mph)26km/h (16mph)19km/h (12mph)29km/h (18mph)18km/h (11mph)
Direction 356°
N

N
11°
N
334°
NNW
309°
NW
309°
NW
330°
NNW
328°
NNW
Wind chill19°C (67°F)19°C (66°F)19°C (66°F)20°C (69°F)19°C (67°F)19°C (65°F)20°C (67°F)19°C (67°F)
Waves
Height0.6m (2.0ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (2.1ft)0.7m (2.2ft)
Direction 301°
WNW
300°
WNW
300°
WNW
299°
WNW
309°
NW
309°
NW
309°
NW
308°
NW
Period6.5 sec.6.5 sec.6.4 sec.5.7 sec.5.0 sec.6.6 sec.6.5 sec.6.9 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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