Southwest monsoon current
From AMS Glossary
Southwest Monsoon Current
The broad eastward flow that dominates the Indian Ocean north of 5°S during the southwest monsoon season (June–October) and extends into the Arabian Sea and Bay of Bengal.
Current speeds are generally 0.2–0.3 m s-1 but increase to 0.5–1.0 m s-1 south of Sri Lanka. The Southwest Monsoon Current replaces the westward flowing North Equatorial Current and absorbs the eastward flowing Equatorial Countercurrent of the northeast monsoon season.