Tap water in Jakarta is not drinkable. Always drink bottled water. If buying bottled water from a street vendor always check the 'tamper proof' seal is intact.
Remember to check the water you bathe in and only brush your teeth with drinkable water.
According to World Health Organization (WHO), Jakarta is the 3rd most polluted city in the world after Mexico City and Bangkok.
During rainy season (December, January, February), lower parts of Jakarta (mostly those to the north) are often flooded.
There is a law against smoking at public places in Jakarta, and the smoker can (in theory) be fined up to US$5,000. You may see the signs threatening a fine (denda) of Rp 50 million or 6 months jail for smoking, although that law seems not to be enforced, as locals still smoke everywhere on the street and even in local buses, as anywhere in Indonesia. It's generally prohibited to smoke, however, inside shops, offices, and air-conditioned buildings generally. If in doubt, you can ask locals: Boleh merokok?
The Most Frequently Asked Travel Questions about Jakarta
Where To Stay & Best Hotels in Jakarta - updated Apr 2024
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Jakarta Travel Guide from Wikitravel. Many thanks to all Wikitravel contributors. Text is available under Creative Commons Attribution-ShareAlike 3.0, images are available under various licenses, see each image for details.