Climate:   Temperatures during October and November can be quite warm ... averaging in the high 80's, while only dropping into the mid-to high 70's at nighttime. And while October can be rainy (averaging 9 inches in Bangkok), November rains average between 2 and 2 ½ inches during the month. For reference, find today's temperature in Bangkok here, and in Chiang Mai here.   Currency:   Thailand's unit of currency is the Baht. While exchange rates tend to fluctuate, approximately 44 Baht equals $1 USD. Get today's currency conversion here.   Entry Requirements:        Thailand:   U.S. or Canadian Citizens staying for less than 30 days do not require a Visa, but must possess a valid passport.      Vietnam/Cambodia:   U.S. or Canadian Citizens require a valid passport and a visa.      Visa Fees:   Updated information coming soon.      Note:   We suggest packing a photocopy of your picture located on the inside page of your passport, and keeping it in a separate location from where you keep your passport. It will speed up governmental procedures should you misplace your passport during your travels.   Medical Information:   Carry both your health insurance identity card as proof of such insurance and a claim form. 4-6 weeks before traveling see your health care provider to find out what shots and prescriptions are recommended for your personal needs. Drugs to prevent malaria, called anti-malarials are available only by prescription through a health care provider. Travelers going to Asia should discuss the benefits of these medications with their doctor. Insect repellents with DEET are recommended. Sunblock and sunglasses should be purchased, in advance, in the U.S. Make sure you have sufficient prescription medications for your trip.