Hi there Jackie!
Thanks for your question 🙂
Weather in Thailand in Feb/March (don't hold me to this!) is described as having a tropical monsoon climate, with northern areas, such as Chiang Mai, being slightly cooler. The rainy season reaches its climax from May to September.
Casual lightweight clothing, including a sunhat and a pair of strong, sensible walking shoes are recommended throughout the tour. You may find a cardigan or pullover useful for air-conditioned buildings and transportation.
Just You departure dates/prices for this year are available to view online here -
http://www.justyou.co.uk/destinations/asia/southeastern-asia/thailand/departures/
Anything else, please just ask
Kindest
Ben