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
| 24 August 2026 Mon 20.4 ° C ( 68.7°F )  Patchy rain nearby |
Feels Like : 17.1 ° C / 62.8°F Humidity : % 89 Pressure : 1012 mb Wind Speed : 32.4 kmph / 20.1 miles from SSW 
Visibility : 10 km Precipitation (rainfall) : 0.35 mm Cloud (%) : 84 |
15-day weather forecast for Sines Airport, Sines, Portugal
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 24 August 2026 Mon | Patchy rain nearby |
20.1 ° C | 20.8 ° C | 20.5 ° C | % 88 | 36.4 km/h | 83% |
| 25 August 2026 Tue |  Overcast |
19.5 ° C | 20.7 ° C | 20.1 ° C | % 89 | 16.6 km/h | 38% |
| 26 August 2026 Wed | Patchy rain nearby |
19.9 ° C | 20.5 ° C | 20.3 ° C | % 84 | 24.8 km/h | 64% |
| 27 August 2026 Thu |  Sunny |
19.6 ° C | 20.2 ° C | 19.9 ° C | % 77 | 32.8 km/h | 62% |
| 28 August 2026 Fri | Sunny |
19.2 ° C | 20.3 ° C | 19.8 ° C | % 84 | 43.2 km/h | 18% |
| 29 August 2026 Sat | Sunny |
18.3 ° C | 20.1 ° C | 19.3 ° C | % 83 | 40.7 km/h | 10% |
| 30 August 2026 Sun | Sunny |
18.7 ° C | 20.6 ° C | 19.7 ° C | % 83 | 42.1 km/h | 10% |
| 31 August 2026 Mon | Sunny |
19.4 ° C | 20.3 ° C | 19.9 ° C | % 86 | 44.3 km/h | 11% |
| 01 September 2026 Tue | Sunny |
18.4 ° C | 19.7 ° C | 19.1 ° C | % 79 | 46.4 km/h | 9% |
| 02 September 2026 Wed | Sunny |
18.6 ° C | 19.8 ° C | 19.1 ° C | % 80 | 48.2 km/h | 12% |
| 03 September 2026 Thu | Sunny |
19 ° C | 20.7 ° C | 19.6 ° C | % 87 | 36 km/h | 12% |
| 04 September 2026 Fri | Sunny |
20 ° C | 20.9 ° C | 20.4 ° C | % 90 | 41 km/h | 13% |
| 05 September 2026 Sat | Sunny |
19.1 ° C | 20.4 ° C | 19.8 ° C | % 83 | 37.1 km/h | 10% |
| 06 September 2026 Sun | Sunny |
19.7 ° C | 22.3 ° C | 21 ° C | % 83 | 17.6 km/h | 13% |
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