I think the little sign at the front says 38ºC - the temp of the water. Iceland benefits from having a lot of thermal heating. I arrived there towards the end of summer. As far as photography goes it was good weather - meaning not sunshine everyday. In fact a good mix of overcast, mist, sunshine through the clouds. In one place I stayed on the east coast, another photographer from Italy who had just left apparently was cursing his whole stay - nothing but sunshine. Nothing screams holiday pics like blue skies and sunshine.