I recently visited Bangkok, Thailand on a vacation with family. Very nice, thank you for asking. Once we got back we were discussing how close the temperatures of the two cites were (Singapore vs. Bangkok) as Thailand feels hotter.
Here is the graph created by weather.com:
Note that in the graph above Bangkok is 2-3 degrees Celsius warmer than Singapore. If you have visited there before than you'll most likely be able to concur that often it feels much warmer than that!
But the funny part of this (well, to me at least) is that there is a textual description of the difference at the bottom. Not sure if this makes it much clearer. :)
I hope everyone has had a wonderful holiday season to date and enjoys the new year also.