Climate and clothing
The climate is tropical with temperatures ranging from 23°C to
31°C. The rainy season extends from mid-May to mid-November, during
which time it is advisable to have a light raincoat or umbrella.
Humidity is high (65%–90%) all year.
Light clothing is recommended. Offices, hotels and shops are
air-conditioned, and visitors sometimes may feel the need for a light
jacket or a sweater.
For official functions, a business suit or national costume is suggested.
Electricity and water
The common standard power supply in Viet Nam is 220 volt.
Water is chlorinated and potable but consumption of bottled water is advised.
Telecommunications
The country code for Viet Nam is 84 and the city code for Ho Chi
Minh city is 28. International prepaid cards are available for sale at
shops or Post Offices. Calls made using these phone cards are about 40%
cheaper than operator-assisted calls.
International direct dialling (IDD) is available in Ho Chi Minh city and
other major cities. The outgoing international code is 00.
Fax services are available at major hotels and business centres.
Local time
Local time is 7 hours ahead of Greenwich Mean Time (GMT).