Cool. You must be going for a while then. So you'll be in Thailand in April? FYI April is the hottest month of the year by some way so expect to boil to death

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It goes as follows (which I think is pretty constant in most of Asia):
November to February - Cool season, still hot
March to June - HOT season
July to October - Rainy season, it could be sunny but usually cloudy. When it rains it only does for an hour then stops completely, it rains heavily when it does
It's warm 24/7 365.
I'll teach you a few Thai words to impress the Thai ladies:
* Sa-wa-deee Krup - Hello - pronounced as typed (A as in Sack not Halo)
* Kop Kun Krup - Thank you - Kop as in Cop
* Hong nam Yu-Ti Nigh Krup - Where is the toilet?

(Nam is water)
I only know about a dozen words. You will see I've put Krup at the end of the sentence, it's basically the Thai equivalent of Please/Thank you.
The sentence makes sense without it but to be polite you add it to the end of 99% of things you say. It's gender specific:
Krup - Men
Kaa - Women, as in car
To make things easier pretty much forget Kaa as you'll be laughed at.
I know how to say "How much" in Thai but don't use it as they then reply in Thai

. If you say "How much" they all know what you're saying and will reply in English.
The Western numbering system is used more than their own numbering system, especially on road signs as 1,2,3 are much easier to read from a distance than the Thai version. It makes buying things easy as you just say "How much" and they'll reply in English.