It's not the high during the day that is now the problem, it is the high of the low that is dangerous in Bangkok. Last night, the low in western Bangkok was 30, along with the sky high humidity. In fact, it was 31 at 2am last night. Then, by 8am it was already back to 33. There is simply no opportunity to cool down. This is what kills people, not daily highs but the inability of the body to cool down at night.