You can visit Yingkiong throughout the year but monsoon should be avoided. This is because the region receives heavy rainfall, and it gets really difficult to operate from Assam.
With minimum temperature as low as 14°C, summer is the best time to plan a holiday in Yingkiong.
Monsoon can be a good time to plan a trip but one should avoid it as the region receives heavy rainfall somewhere around 3.31 centimeters.
Winters is also a good time but it gets way too much cold. So don't forget to carry woolens during the winter season.