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
| 13 September 2026 Sun 21.5 ° C ( 70.7°F )  Sunny |
Feels Like : 19.6 ° C / 67.3°F Humidity : % 82 Pressure : 1018 mb Wind Speed : 24.8 kmph / 15.4 miles from NW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Sines Airport, Sines, Portugal
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun | Sunny |
20.4 ° C | 21.6 ° C | 20.9 ° C | % 84 | 25.6 km/h | 11% |
| 14 September 2026 Mon | Sunny |
20.3 ° C | 22 ° C | 21 ° C | % 83 | 16.2 km/h | 10% |
| 15 September 2026 Tue | Sunny |
19.7 ° C | 20.3 ° C | 20 ° C | % 88 | 38.5 km/h | 12% |
| 16 September 2026 Wed | Sunny |
18.3 ° C | 19.9 ° C | 19.1 ° C | % 86 | 49.7 km/h | 14% |
| 17 September 2026 Thu |  Overcast |
18.6 ° C | 21 ° C | 19.7 ° C | % 79 | 36.4 km/h | 15% |
| 18 September 2026 Fri | Sunny |
18.6 ° C | 20.4 ° C | 19.6 ° C | % 79 | 27.4 km/h | 12% |
| 19 September 2026 Sat | Sunny |
19.5 ° C | 21.8 ° C | 20.5 ° C | % 73 | 19.1 km/h | 7% |
| 20 September 2026 Sun | Sunny |
20.2 ° C | 22.6 ° C | 21 ° C | % 77 | 19.8 km/h | 9% |
| 21 September 2026 Mon | Sunny |
20.5 ° C | 23.2 ° C | 21.4 ° C | % 75 | 22.7 km/h | 9% |
| 22 September 2026 Tue | Sunny |
20.1 ° C | 21.3 ° C | 20.7 ° C | % 82 | 28.4 km/h | 11% |
| 23 September 2026 Wed |  Cloudy |
19.9 ° C | 21.8 ° C | 20.6 ° C | % 79 | 20.9 km/h | 17% |
| 24 September 2026 Thu | Overcast |
19.9 ° C | 21.7 ° C | 20.5 ° C | % 84 | 22 km/h | 23% |
| 25 September 2026 Fri | Sunny |
20 ° C | 22.1 ° C | 20.9 ° C | % 82 | 15.8 km/h | 12% |
| 26 September 2026 Sat | Overcast |
19.6 ° C | 20.9 ° C | 20.2 ° C | % 88 | 15.5 km/h | 20% |
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