British Embassy Bangkok will be closed on Friday 27 July 2018 for Asarnha Bucha Day and on Monday 30 July 2018 in lieu of the King's Birthday.
If you are in Thailand and you need urgent help (for example, you have been attacked, arrested or someone has died), call 02 305 8333. If you are in the UK and worried about a British national in Thailand, call 020 7008 1500.
TLDR : Answer Summary
The British Embassy in Bangkok will be closed on 27 July 2018 for Asarnha Bucha Day and on 30 July 2018 for the King's Birthday. For urgent assistance while in Thailand, contact 02 305 8333. If you are in the UK and concerned about a British national in Thailand, call 020 7008 1500.