The hurricane season in Belize normally runs from June to November. See Hurricanes.
11,357 British nationals visited Belize in 2014. Most visits are trouble free.
You should take precautions against street crime. There have been occasional violent incidents against tourists. The George Street and Kraal Road areas of Belize City are particularly dangerous due to gang violence and gun crime. See Crime.
There is a low threat from terrorism. See Terrorism.
Take out comprehensive travel and medical insurance before you travel.