I used to live in a city where it never rains. During the winter season, the temperature is among 11°C - 18°C and during this season it is normal to have one or two cloudy weeks without sunshine! The humidity in my city is above 86%, but once else never rains, and no thunders. Due to this weather I was accustomed to light drizzle. After living some months here in Bangkok, I have got used to rains and thunders. I now know that when you see dark cloudy above you what you should do is just run away without hesitating, unless you want a sudden downpour to hit you wildly!!!