It depends on your nationality. Some nationalities can obtain a visa on arrival, while others need to apply in advance. Check the UAE immigration website or contact us for specific requirements. However you can easily apply 30 days tourist visa and get it within 3 working days.
The best time to visit Dubai is from November to March when the weather is cooler and more pleasant for outdoor activities.
The currency used in Dubai is the UAE Dirham (AED)
Arabic is the official language, but English, Hindi, Urdu and Malayalam are widely spoken and understood.
Yes of course, Dubai is considered one of the safest cities in the world for tourist