Check the weather forecast for the competition area:
Weather Forecast Gouveia - AccuWeather!
http://www.accuweather.com/en/pt/gouveia/273403/weather-forecast/273403
Weather Forecast Gouveia - Instituto de Meteorologia de Portugal
http://www.ipma.pt/pt/otempo/prev.10dias/index.jsp?localID=9&cidadeID=152