Islam is the official religion of the UAE, and is widely practised. The Islamic holy day is Friday. Muslims are required to pray (facing Makkah) five times a day. The times vary according to the position of the sun, when the modern day call to prayer is transmitted through loudspeakers on mosque minarets. The UAE Constitution provides for freedom of religion in accordance with established customs. Abu Dhabi is tolerant of other religions with people being free to practice their religious beliefs, so long as they do not interfere with Islam. Non-Muslims can get an insight into Islam through complimentary guided tours of the spectacular Sheikh Zayed Grand Mosque - one of the world's largest. The tours run at different times during the week.

Lightweight summer clothing is suitable for most of the year, but something slightly warmer may be needed in winter months. Take a jacket or sweater when visiting hotels or the cinema, as the air conditioning can be fierce. Although the attitude towards dress is fairly liberal throughout the Emirates, a healthy amount of respect for local customs doesn't go amiss, especially when shopping or sightseeing. Short or tight clothing may be worn, but it will attract attention - most of it unwelcome. Malls, health clubs and resort facilities are generally more accepting of what's fashionable, but when visiting government offices it is best to cover your shoulders and legs. It is especially recommended that you dress more conservatively during Ramadan. In the evenings, restaurants and clubs usually have a mixt of western, Arabic and Asian styles. Again, ladies are advised to take a pashmina or jacket because of cold air conditioning.

Ramadan is the holy month in which Muslims commemorate the revelation of the Holy Quran (Islam's holy book). It’s a time of fasting and Muslims abstain from all food, drink, smoking and unclean thoughts (or activities) between dawn and dusk. At sunset, the fast is broken with the Iftar feast, the timings of which are published in all daily newspapers. All over the city, festive Ramadan tents are filled to the brim each evening with people of all nationalities and religions enjoying traditional Arabic mezze and sweets. The dates of Ramadan change each year following the Islamic lunar calendar. During the holy month of Ramadan, shops often change their hours by closing during the day, re-opening an hour or two after sunset, and staying open later at night. Food outlets and restaurants generally remain closed or offer takeaway services only during the day and then open up for Iftar after sunset. Non-Muslims are respectfully required to refrain from eating, drinking or smoking in public places during daylight hours. Failure to do so could upset people or lead to an official complaint. During Ramadan, the sale of alcohol is restricted to after dusk, while shops and parks usually open and close later. In addition, no live music or dancing is allowed (so nightclubs tend to close for the entire month) and cinemas limit daytime screenings. Ramadan ends with a three-day celebration and holiday called Eid Al Fitr, which is characterised by gifts being given amongst families, friends, neighbours and charities.

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Most Abu Dhabi hotels offer complimentary internet access to their guests, or paid access to non-guests. There is a growing number of establishments outside of hotels - such as coffee shops and restaurants - that also offer wireless Internet access. Visitors who don’t have their own laptop can drop by Internet cafés in malls and along most busy streets.

Abu Dhabi has a very family-friendly environment. Baby changing rooms, play areas and kids facilities are commonplace in malls and hotels alike; most hotels have paid child care services. Kids’ menus, high chairs and play areas are common in most restaurants.

Most of Abu Dhabi's five-star  hotels ,  malls  and  heritage attractions  have wheelchair facilities. Wheelchair ramps often have steep angles. Abu Dhabi International Airport  is well equipped for physically challenged travellers. There is a special check-in gate with direct access from the car park, as well as dedicated lifts, and a meet and assist service.