Swimming in Sines in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Sines in september 2025.
In september, according to seasonal norms, the sea temperature in Sines is:
Minimum: 67°F
Average: 69°F
Maximum: 71°F
Other useful seasonal weather averages in september:
- Outside temperature: 67°F to 75°F
- Most common weather: "Clear/Sunny"
- The wind blows at 12.4mph
- It rains a total of 1.5in, over 2 day(s).
Should we swim in Sines in september?
Yes... and no. The water temperature in Sines in september is cool
Swimming in september on the beaches of Sines is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 71°F, it can also be as low as 67°F! Note that the average is 69°F.
Note also that in september, the climate is perfect with an average outside temperature of 71°F, 1.5in of precipitation (over 2 days) and 79.72 % humidity.
Water and normal seasonal temperatures in Sines in september
| September | |||
| Average sea temperature | 69°F | ||
| Minimum sea temperature | 67°F | ||
| Maximum sea temperature | 71°F | ||
| Average outside temperature | 72°F | ||
| Maximum outside temperature | 76°F | ||
| Minimum outside temperature | 68°F | ||
| Wind speed | 13.7mph | ||
| Wind temperature | 68°F | ||
| Precipitation | 1.5in | ||
| Number of days of rain | 2 jour(s) (6%) | ||
| Humidity | 80% | ||
| Visibility in kilometers | 9.83km | ||
| Cloud cover | 16% | ||
| Our opinion | cool swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Sines
Swim elsewhere in Portugal in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Lisbon in september | 68°F | 71°F | cool swimming | Albufeira in september | 71°F | 73°F | pleasant swimming | Aveiro in september | 65°F | 68°F | cool swimming | Faro (Algarve) in september | 72°F | 74°F | pleasant swimming | Lagos in september | 71°F | 72°F | pleasant swimming | Porto in september | 65°F | 68°F | cool swimming | Viana do Castelo in september | 65°F | 68°F | cool swimming | Cascais in september | 68°F | 71°F | cool swimming | Portimao in september | 70°F | 72°F | pleasant swimming | Praia de Mira in september | 67°F | 69°F | cool swimming | Caminha in september | 66°F | 68°F | cool swimming | Carvoeiro in september | 71°F | 73°F | pleasant swimming | Costa da Caparica in september | 68°F | 71°F | cool swimming | Foz do Arelho in september | 68°F | 70°F | cool swimming | Praia da Rocha in september | 71°F | 73°F | pleasant swimming | Ericeira in september | 68°F | 71°F | cool swimming | Estoril in september | 68°F | 71°F | cool swimming | Monte Gordo in september | 71°F | 74°F | pleasant swimming | Nazaré in september | 67°F | 70°F | cool swimming | Olhao in september | 71°F | 74°F | pleasant swimming |