The tropical cyclone (typhoon) season in Taiwan normally runs from May to November. You should monitor alerts issued by the Central Weather Bureau and follow the advice of the local authorities, including any evacuation orders. See Natural disasters
There has been a significant increase in cases of dengue fever. See Health
Take out comprehensive travel and medical insurance before you travel.
The UK does not recognise Taiwan as a state and has no diplomatic relations with Taiwan, so limited consular services are available to British nationals.
Around 38,000 British nationals visit Taiwan every year. Most visits are trouble-free. Nevertheless, you should maintain the same level of vigilance as you would at home, and take sensible precautions.
Crime levels are low, but small-scale petty crime does exist. You should maintain at least the same level of vigilance as you would at home, and take sensible precautions.
Although there’s no recent history of terrorism in Taiwan, attacks can’t be ruled out. See Terrorism
You can contact the emergency services by calling 110 (police) or 119 (ambulance and fire).
If you’re abroad and you need emergency help from the UK government, contact the nearest British embassy, consulate or high commission.