This weekend will have some restrictions due to two Buddha days being adjacent (Asalha Bucha and Buddhist Lent) and coinciding with the king's birthday.

There will be restrictions on the sale of alcohol from midnight this Thursday (tonight) till midnight on Saturday.

Before and after that, sales as normal.

Saturday is the birthday of the king and Monday has been declared a holiday in lieu, but no restrictions are expected.

During the restricted times, bars may be closed or open for soft drinks only. This depends on the local police and bars are often not informed till the day before.

Further to my post earlier:
From today's NATION: http://www.nationmultimedia.com/detail/ ... s/30350856

Police will strictly enforce the ban on liquor and beer sales on Asanha Bucha (July 27) and Buddhist Lent, Royal Thai Police deputy spokesman Pol Col Krissana Pattanacharoen said.
He said Police Commissioner General Pol Gen Chakthip Chaijinda had instructed chiefs of the nine provincial bureaux and Metropolitan Police Bureau to be strict about the ban on Friday and Saturday.Although Thailand is a secular society, the sale of alcoholic drinks is banned at department stores,
convenience stores and entertainment venues on Buddhist national holidays.The ban goes onto effect at 12.01am on Friday and remains in place through midnight Sunday.
I suspect that "Through midnight Sunday" really means 'until midnight on Saturday'.