At this time of year the sun is lower in the sky and more dazzling.  The contrast between the blue sky, the white heat of the sun’s eye, and the black and silver of the bare tree trunks is best in late afternoon.  Without the clue of the bare branches, you could be forgiven for thinking it was August rather than April. 5 to remember
el abril – April
el agosto – August
una pista – a clue
el calor – the heat
blanco/a – white

And if you’d like to tweet a link to THIS post, here’s my suggested tweet:
Sun through the branches: #Spain in April #trees via @Spanish_Valley http://wp.me/p3dYp6-9w