We've been to Cyprus in early March and it was sunny but quite chilly and we had to wrap up warm for any trips away from the coast. Likewise Malta, Spain or anywhere on the Med. It could be lovely but you couldn't rely on it. The Canaries or Madeira are usually more reliable for a bit of warmth in March. Lanzarote?
Cyprus maybe. Probably one of the sunniest places to visit and only 4 hours away. We always go in. Oct/Nov /dec when it’s still very warm. Sea is too, might avoid January and maybe early February but later Match ought to be very nice, though sea might be chillier than before Christmas. Some resorts close over winter but paphos Limassol and Larnaca remain open all year.
Where would you advise for a weeks sun in March ? Just to sit in the sun and read, go for strolls, maybe take a boat trip, eat some nice food ?Don’t need night life or “entertainment “! In Europe please….