Winds are generally light.
Situated at the equatorial doldrum area, it is extremely rare to have a full day with completely clear sky even in periods of severe drought. On the other hand, it is also rare to have a stretch of a few days with completely no sunshine except during the northeast monsoon seasons. Though the wind over the country is generally light and variable, there are, however, some uniform periodic changes in the wind flow patterns. Based on these changes, four seasons can be distinguished, namely, the southwest monsoon, northeast monsoon and two shorter intermonsoon seasons. The southwest monsoon is usually established in the later half of May or early June and ends in September.