The best time to visit Dubai depends on your personal preferences and the activities you want to do during your trip. Dubai has a hot and dry climate, with temperatures ranging from around 25°C (77°F) in the winter to over 40°C (104°F) in the summer.
If you want to spend time on the beach and enjoy outdoor activities, the best time to visit Dubai is during the winter months, from November to March. During this time, the weather is pleasant and sunny, with temperatures ranging from 25°C to 35°C (77°F to 95°F).
If you prefer cooler temperatures and don't mind the extra humidity, you might consider visiting Dubai during the summer months, from June to September. While the temperatures can be quite hot during this time, the evenings are usually cooler and more comfortable.
It's worth noting that Dubai can be quite crowded and expensive during peak tourist season, which runs from November to March. If you want to avoid the crowds and get better deals on accommodation and flights, you might consider visiting during the shoulder season, from April to May or October to November. The weather is still quite pleasant during these months, and you'll likely find lower prices and fewer crowds.