Quick answer
Sri Lanka's cyclone risk comes from storms in the Bay of Bengal, which form mainly from October to December and, less often, in April and May. Direct hits are rare, but depressions and cyclones passing close by can bring one to three days of heavy rain, strong wind, flooding and landslides, mostly to the east, the north and the hills. Forecasts give several days of warning, so flexible plans are the main defence.
Key takeaways
- The main cyclone season for Sri Lanka is October to December, with a smaller one in April and May.
- Direct cyclone landfalls on Sri Lanka are rare; near misses and depressions are more common.
- The east and north coasts are most exposed, but heavy rain from a passing storm can affect the whole island.
- The main dangers for travellers are flooding, landslides and blocked roads, not wind damage to hotels.
- Storms are tracked days in advance, so watching forecasts and keeping plans flexible is the best protection.
When cyclones happen
Tropical cyclones in the North Indian Ocean form mainly in two seasons. The bigger one runs from about October to December, as the southwest monsoon retreats and the sea is at its warmest after summer. A smaller season runs from about April to May, before the southwest monsoon sets in. In between, the monsoon winds make cyclone formation less likely.
Most storms that affect Sri Lanka form in the southern Bay of Bengal and move west or northwest towards India. Their tracks pass north or east of the island, but the outer bands of rain and wind can still reach it, especially the northeast coast around Trincomalee and the north around Jaffna.
- →Main season: October to December, peaking in November.
- →Smaller season: April to May.
- →Most exposed: the east coast and the north.
How often Sri Lanka is hit
Direct landfalls are rare. The most destructive in modern memory was the 1978 cyclone that struck Batticaloa on the east coast. More recent storms have usually passed close rather than crossing the island, though Cyclone Burevi crossed the northeast in December 2020, and Cyclone Ditwah in late November 2025 brought severe flooding and landslides to large parts of the country.
Weaker systems, called depressions or deep depressions, are more common. They bring the same kind of heavy, persistent rain without the strongest winds, and they are the more likely event for a traveller to meet. The depression of May 2016, for example, caused floods around Colombo and landslides in the hills.
What a storm brings
For a traveller, the effects of a cyclone or depression are mostly about water. Heavy rain for one to three days can flood low-lying roads in the east and north and around Colombo, swell rivers and trigger landslides in the hill country. Trains on the hill line can be suspended, and some roads close for a day or more.
Strong wind and rough sea come with the storm. Fishing boats stay in harbour, boat trips are cancelled and beaches become dangerous. Power cuts and mobile network outages are possible in affected areas.
- →Heavy rain and flooding on low roads.
- →Landslides and road closures in the hills.
- →Rough sea, cancelled boat trips, power cuts.
Warnings and forecasts
Storms in the Bay of Bengal are tracked from formation, usually several days before they come close. The Department of Meteorology in Sri Lanka issues advisories and warnings, and the Disaster Management Centre and the National Building Research Organisation issue flood and landslide alerts. The India Meteorological Department also tracks storms across the region.
For travellers, the useful signs are an advisory about a low-pressure area or depression in the southwest Bay of Bengal, warnings for the eastern and northern provinces, and landslide alerts for hill districts. Hotel staff and drivers follow these closely.
- →Department of Meteorology: advisories and warnings.
- →Disaster Management Centre: flood alerts.
- →NBRO: landslide warnings for hill districts.
What to do if a storm is forecast
Follow local advice and avoid travel in affected districts while warnings are in force. Move long drives, especially hill drives, to before or after the storm, and stay off beaches and boats. A day or two in a solid hotel in an unaffected area, such as the southwest during an east coast storm, is usually the best choice.
Travel insurance that covers weather disruption is worth having for trips between October and December. Lankan Stays & Trails watches storm forecasts for every trip in this period and reroutes guests when warnings are issued.
Frequently asked questions
Does Sri Lanka get cyclones?
Sometimes. Sri Lanka sits at the edge of the Bay of Bengal cyclone belt. Direct hits are rare, but depressions and cyclones passing close by can bring one to three days of heavy rain, strong wind, flooding and landslides, mostly to the east, the north and the hills.
When is cyclone season in Sri Lanka?
The main season is roughly October to December, peaking in November, with a smaller season in April and May. Most storms form in the Bay of Bengal and move towards India, passing north or east of Sri Lanka, though their rain bands can reach the island.
Which parts of Sri Lanka are most at risk from cyclones?
The east coast and the north, including Trincomalee, Batticaloa, Mullaitivu and Jaffna, are the most exposed to wind and storm surge. The hill country is most at risk from landslides caused by the heavy rain, and low-lying parts of Colombo can flood.
Should I cancel a trip to Sri Lanka in cyclone season?
Usually not. Most trips between October and December are not affected by a cyclone. Watch forecasts in the week before travel, keep plans flexible and have travel insurance that covers weather disruption. If a storm is forecast, reroute to an unaffected region rather than cancel.
What should I do if a cyclone is forecast during my trip?
Follow local advice and warnings from the Department of Meteorology and the Disaster Management Centre. Avoid long drives in affected districts, especially in the hills, stay off beaches and boats, and wait out the storm in a solid hotel, ideally in an unaffected region.
How much warning is there before a cyclone in Sri Lanka?
Usually several days. Storms in the Bay of Bengal are tracked from formation, and advisories are issued as a low-pressure area develops into a depression or cyclone. Exact tracks can change, so warnings are updated daily as a storm approaches.
How does Lankan Stays & Trails handle cyclone warnings?
For trips between October and December, storm forecasts are watched daily. If a depression or cyclone is forecast for part of the route, guests are rerouted to an unaffected region, long hill drives are moved, and boat trips or beach days in the affected area are postponed.