Phnom Penh is humid and tropical, with high temperatures year-round. The coolest months are December and January, when days are comfortable and evenings can be lightly cool (think long sleeves or a light jacket). Factor in the lack of rainfall and it's easy to see why tourists arrive in great numbers during the cool season.
By February things are starting to turn around, and the heat returns quickly. March and April can be uncomfortably warm and are best avoided. The few tourists who do visit at this time of year rely on lots of bottled water and intermittent air-conditioning to survive. Rains follow the hot season and last until October.
The transportation network in Phnom Penh has yet to come into its own, and today's visitors spend a great deal of time riding around on moto (motorcycle) taxis and cyclo (pedicabs). Private unmetered taxis are available, but these are relatively rare and fetch a premium. Be sure to settle on a price before boarding.
Phnom Penh International Airport (PNH) sees more than a million passengers every year. The few private taxis in town regular pass by the airport. They can carry passengers to the city center in 15 minutes for just a few dollars. Moto are much cheaper and more abundant.
Spoken languages: Khmer and, to a lesser extent, French
Electrical: 220 Volts, 50 Hertz
Phone/calling code: +855 23