Is it worth planting lettuce seeds this time of year for a Bangkok garden?

I'm growing some in Issan but under the black material to fend off the heat of the summer sun. What Thais call pa salairn ผ้าแสลน. The lettuce are doing okay so far.

1 hour ago, bannork said:

I'm growing some in Issan but under the black material to fend off the heat of the summer sun. What Thais call pa salairn ผ้าแสลน. The lettuce are doing okay so far.

Thanks bannork. I will give it a go. It can't be that much hotter here.