Internet cyber ports are available at many cafe bars in the downtown area.
Post Office hours 08:30-16:30 weekdays; 09:00-12:00 on Saturdays.
Overseas Telephone Services and mail facilities are offered by the Post Office from 08:30 through 18:00 at the Airport Post Office (terminal building), Chiang Mai Post & Telegraph Office (Sanpakoi - Charoen Muang Road ) and Phra Singh Post Office (Samlan Road). Calls may be made from the "GPO" office at the corner of Chang Khlan Road and Anusarn Market (24 hrs.), and the basement of the Night Bazaar (till 23:00). The cheapest rates are from the Telecommunications Authority Office on the Chiang Mai - Lampang Superhighway (24 hrs.)
Dial 001 (100 for operator assisted calls) + country code for international calls. The minimum charge for a call is one minute; then the call is priced in units.
Many institutions have automatic switchboards. Dial 0 or 9 to reach the operator.
China: 282419
Great Britain: 203405 Fax: 203408
India: 234066
Japan: 203367
USA: 252629
Australia: 221083 Fax:219726
Austria: 400231
Canada: 242292
Finland: 234777
Sweden: 220844
Directory 13
Emergency 191
Fire 199
Operator 100
Immigration: 277510
Tourism Authority of Thailand: 248604, 248607
Tourist Police: 1699 (free) or 248974, 248130
Chiang Mai's northern latitude (18° 47') and its location in the mountains ensure a wide seasonal variation in the weather.
Surprisingly low temperatures at night make warm clothing necessary, especially if you plan to travel in the mountains where temperatures can drop to near freezing at higher altitudes.
Heat and haze reach their maximum at the end of March. Short, violent storms in April and May can bring high winds and welcome rain.
Days often begin bright but darken as clouds gather above the Mountains. Short intense rainstorms usually occur in the afternoons, clearing again by evening. Sustained rain occurs when tropical storms hit the region. This has been common in recent years.