I think people that live in Thailand learn to love and appreciate rain.
Not so much for tourists, who believe, that rain will ruin their holiday.
Life goes on in Thailand despite the rain.
Rain can make travel difficult and congested, but Thai people understand this is part of life in the monsoon season.
Sometimes it only rains for a short while.
Rain is really not something to worry about.
You can still enjoy Thailand 100% in the rain.