I believe that the 5th. & 6th. are Bank holidays which will be followed by the weekend, so maybe a time to avoid the ATMs.May 5 Thursday Coronation Day National holiday
May 6 Friday Coronation Day National holiday
May 9 Monday Royal Ploughing Ceremony Day National holiday
May 20 Friday Visakha Bucha National holiday
Friday 20th. May is, I believe, an alcohol free day, but maybe one of the local bar owners can confirm??