It rains a lot recently and the average temperature is about 16~19C. It is generally cool. The temperature during your travelling time may be the similar with the weather condition at currently. You'd better pack long-sleeved T-shirts with jacket when travelling there.

Currently the weather here around 16'c~22'c at night. Day time around 24'c~30'c. If you saw beijing having heavy snow today. The low wave temperature Probably will reach haikou after 3~4 days.

If your T-shirt size is more than XL, please bring your jacket with you. It is very Difficult to find XXL jacket even you visit haikou carrefour. If you are white coffee drinker, take a few bags with you too. I never see any shops and hypermaket selling white coffee here :)