Most visitors come to Dubai in the winter season, between November and March, when Dubai weather is warm and sunny without being unbearably hot. Winter temperatures are around 23 degrees C in the daytime, while nights are cooler.
Summer temperatures are in the mid-40s, and soar higher the further inland you go. Even the temperature of the sea can reach 37 degrees C.
Visitors brave enough to visit in the summer should be aware of a couple of important points:
- Don't think the heat gives you an excuse to walk around in a state of undress. Dubai may be a liberal country compared to the rest of the UAE, but you should still dress fairly modestly.
- Do take care to avoid heatstroke and sunburn, particularly if you are a Westerner unused to high temperatures. Don't bake on the beach during the hottest part of the day. Cover up, use sunscreen, drink plenty of water and wear a hat.
Rain always happens in the winter months, usually in February or March, but sometimes earlier. Dubai gets just over five inches of rainfall in the average year.
Dubai weather is very different indoors. Remember that air-conditioning was almost certainly invented in the Middle East (in the simpler form of wind towers) and that Dubai has had cooling systems since at least the early 20th century. Now they have air-conditioning down to a fine, if breezy, art, and some visitors may find indoor temperatures uncomfortably cold. Packing a jumper or jacket is always a good idea, particularly if you are going to watch a film in the cinema.