Love The Sun, Love Your Body Even More...

Keep a bottle of water with you to sip during the day.
Use sun screen cream and reapply as required (read instructions).
Try to avoid the sun around mid-day.
Wear sunglasses to protect your eyes.
Wear a sun hat to protect your face.
Wear appropriate clothes so your body does not over heat.
Open windows but be security/safety concious.
Avoid the underground around mid-day if you can!

Enjoy your day!