What are the expected wait times at immigration offices in Thailand after a closure?

Ok. Tomorrow (Wednesday 17th) immigration offices will be open. Many of the major ones like Bangkok, Chiang Mai, Jomtien, Phuket, etc will be off the wall charts busy after a 5 day closure. 𝐈𝐟 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐩𝐨𝐬𝐬𝐢𝐛𝐥𝐲 𝐚𝐯𝐨𝐢𝐝 𝐠𝐨𝐢𝐧𝐠 𝐭𝐨𝐦𝐨𝐫𝐫𝐨𝐰 𝐭𝐡𝐞𝐧 𝐩𝐥𝐞𝐚𝐬𝐞 𝐝𝐨 𝐬𝐨. They’re open on Thursday and Friday too and will probably be a lot less busy.

If you have had a stamp that has expired since the 12th then definitely go tomorrow (early in the morning). You can get an extension as normal but you will get an overstay stamp but not a fine as the offices were closed. The extension will be dated from the day it was due.

If the wait times are astronomical then please don’t blame the staff. They will be working as best they can but it will certainly be hard to cope with the sheer numbers that turn up.