Mid April - weather and what's open?

Just wondering what is likely to be open in the middle of April, and how warm it will be. I've got the chance of week off around 12th and have seen some wonderfully cheap flights. Just want a little sun on my back sometime soon after a couple of days in Marrakech last week has set off my need for some warmth!
Does anyone have any info for this time of year, earliest I've been before is a couple of weeks later at the start of May. Thanks
Does anyone have any info for this time of year, earliest I've been before is a couple of weeks later at the start of May. Thanks
