Health & safety
Brunei Health and Safety: Heat, Dengue and Local Law
Brunei is an orderly, quiet country with negligible street crime, and most visitors never have a reason to think about their personal safety. What does deserve attention before arrival is a short list: laws on alcohol, dress and public behaviour that apply to visitors as well as residents, an equatorial climate that is hot and humid every day of the year, dengue, and the practical demands of the rainforest.
Updated 2026-09-19
The laws a visitor actually meets
Brunei's legal system combines civil law with a Sharia-based code, and a few of its rules shape a visit directly. Alcohol is not sold anywhere in the country; non-Muslim visitors aged 17 and over may bring in a limited personal allowance, which has to be declared to customs on arrival, kept for private consumption, and cannot be topped up by repeated imports a short time apart — check the current limits before packing. Public displays of affection are restricted and conservative public behaviour is expected. Some provisions apply to Muslims only, but visitors are expected to respect the customs behind them, and the simplest approach is to behave in public as the people around you do.
Dress, mosques and the fasting month
Modest dress is the everyday norm, and at mosques it is required: shoulders and knees covered, shoes removed before entering, and robes lent at the entrance of the main mosques to visitors who need them. Away from religious sites, light clothing that covers the shoulders and knees is comfortable in the heat and draws no attention. During Ramadan, restaurants serve only takeaway or delivery through the fasting hours, and eating, drinking or smoking in public in daylight is best avoided by everyone, whatever their faith.
Heat, rain and dengue
Brunei lies a few degrees north of the equator and is hot and humid all year, with rain possible in any month. The wettest stretch runs from late October into early January, with December usually the wettest month and a second, smaller peak around May to July, while February and March are generally the driest. Heat is the everyday hazard: drink water steadily, keep strenuous plans for early morning and late afternoon, and treat the middle of the day as time for somewhere air-conditioned. Dengue fever is endemic and is spread by Aedes mosquitoes, which bite mainly during the day, so use repellent from morning onwards, cover up where you can, and choose rooms that are screened or air-conditioned, in the capital as much as in the countryside.
In the rainforest
The physical demands of a Brunei trip are concentrated in Ulu Temburong. The canopy walk means a climb of more than seven hundred steps in humid heat, forest trails turn slippery and leech-rich after rain, and the journey in is by open longboat. Visits are guided, which is the main safeguard; the rest is preparation — water, a hat, footwear with grip, repellent and leech socks, and an honest word with the operator beforehand about any fitness or health limits that could matter on the climb.
Insurance, and proof of it
Comprehensive travel insurance that includes medical evacuation is a sensible baseline for any trip, and in Brunei it is also a practical requirement. Official travel advice from more than one government notes that visitors should be able to show proof of medical insurance covering their whole stay, and that without it the permitted stay can be limited to two weeks. Carry the policy details in a form you can show at the border, and check that the cover includes the rainforest and any activities you plan there.