CURRENTS Seasonal variations in currents conform with the monsoon periods. From May to September the predominating set is north-eastward, and from October to April it is south-westward, but with frequent onshore sets. Rates are up to 3 knots. Monsoon-driven currents have a considerable degree of variability and at times run opposite to the predominating direction and in other directions.For further information, see Admiralty Sailing directions.