Sines Airport (SIE) 15 Day Weather Forecast, Sines Portugal
Current weather conditions and 15 day weather forecast for Sines Airport in Sines, Portugal including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at SIE
| 03 August 2026 Mon 19.6 ° C ( 67.3°F )  Clear |
Feels Like : 19.9 ° C / 67.8°F Humidity : % 93 Pressure : 1017 mb Wind Speed : 14 kmph / 8.7 miles from NW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 12 |
15-day weather forecast for Sines Airport, Sines, Portugal
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 03 August 2026 Mon |  Partly Cloudy |
18.8 ° C | 23.5 ° C | 20.9 ° C | % 84 | 16.9 km/h | 14% |
| 04 August 2026 Tue | Sunny |
18.7 ° C | 23.7 ° C | 21 ° C | % 83 | 20.5 km/h | 10% |
| 05 August 2026 Wed | Sunny |
18.8 ° C | 23 ° C | 20.7 ° C | % 83 | 36.4 km/h | 11% |
| 06 August 2026 Thu | Sunny |
18.2 ° C | 24.4 ° C | 21 ° C | % 75 | 36.4 km/h | 7% |
| 07 August 2026 Fri | Sunny |
17.9 ° C | 24.8 ° C | 21.1 ° C | % 76 | 33.5 km/h | 8% |
| 08 August 2026 Sat | Sunny |
18.1 ° C | 24 ° C | 20.8 ° C | % 76 | 27.4 km/h | 8% |
| 09 August 2026 Sun | Sunny |
18.4 ° C | 23.6 ° C | 20.6 ° C | % 82 | 29.9 km/h | 10% |
| 10 August 2026 Mon | Sunny |
18 ° C | 23.3 ° C | 20.5 ° C | % 81 | 36 km/h | 9% |
| 11 August 2026 Tue | Sunny |
17.8 ° C | 23.8 ° C | 20.6 ° C | % 79 | 30.2 km/h | 8% |
| 12 August 2026 Wed | Sunny |
17.5 ° C | 25.2 ° C | 21.3 ° C | % 75 | 28.4 km/h | 7% |
| 13 August 2026 Thu | Sunny |
18.3 ° C | 24.7 ° C | 21 ° C | % 79 | 28.8 km/h | 9% |
| 14 August 2026 Fri | Sunny |
18.5 ° C | 23.6 ° C | 20.6 ° C | % 88 | 20.9 km/h | 14% |
| 15 August 2026 Sat |  Mist |
18.6 ° C | 24.6 ° C | 20.8 ° C | % 87 | 17.3 km/h | 21% |
| 16 August 2026 Sun | Sunny |
19.1 ° C | 23.5 ° C | 20.9 ° C | % 84 | 15.1 km/h | 19% |
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