The sky u here is looking quite positive so I do not know if I should get out and do the watering or wait and see what will happen...  If I wait and the sun comes out then it will be too hot to do any watering today.
Such a worry....

Water: the sky which was cloudy down here is turning blue as the sun comes up and burns it off and AEMET are predicting zero percent chance of rain, partial cloud
http://www.aemet.es/en/eltiempo/prediccion/municipios/somontin-id04085

Exactly, so no watering today!  It'll need to be done in the morning but only the small plants as there will be no time to do more...