# SRI LANKA WEATHER FORECAST FOR 22 SEPTEMBER 2026

- Link: https://www.weather.lk/sri-lanka-weather-forecast-for-22-september-2026/
- Published: 2026-09-21T18:37:23+05:30
- Author: WeatherLK

Sri Lanka is expected to experience continued unsettled weather on 22 September,
particularly across the southwestern parts of the island. A low-pressure area over
the Andaman Sea region of the Bay of Bengal, northeast of Sri Lanka, is expected
to intensify into a depression within the next 24 hours.

Although the weather system is not expected to have a direct impact on Sri Lanka,
its influence on the surrounding wind flow is likely to maintain rainy conditions,
especially across the southwestern regions. Showers or thundershowers will occur
at times in the Western, Sabaragamuwa, Central and North-western provinces, as well
as in the Galle and Matara districts. Heavy rainfall of around 100 mm is possible
at some locations in these areas.

![](https://www.weather.lk/wp-content/uploads/2026/09/SRI-LANKA-WEATHER-FORECAST-
FOR-22-SEPTEMBER-2026-1024x462-1.jpg)

Several spells of showers may also occur in the North-central Province and Mannar
district. Meanwhile, the Uva Province and the Batticaloa and Ampara districts are
expected to experience showers or thundershowers at several places after 2.00 p.
m. The afternoon and evening rainfall could be accompanied by temporary localized
strong winds and lightning.

Strong winds are also expected in several parts of the country. Wind speeds of around
40–50 kmph may occur at times over the western slopes of the Central Hills, North-
central and North-western provinces, as well as in Trincomalee, Hambantota and Matale
districts. The public is advised to take appropriate precautions during thundershowers
to reduce possible damage from strong winds and lightning.

![](https://meteo.gov.lk/gifs/analysis1.gif?t=1789995459118)

## **Sea Weather Around Sri Lanka**

Weather conditions over the surrounding seas will also be affected by the developing
low-pressure system. The system is expected to strengthen the wind and rainy conditions
over the Bay of Bengal. Naval and fishing communities operating in these waters 
are advised to remain vigilant and closely follow future forecasts and bulletins
issued by the Department of Meteorology.

Showers or thundershowers will occur at times in the sea areas extending from Kankasanthurai
to Hambantota via Puttalam, Colombo and Galle. Showers or thundershowers may also
develop in several other sea areas during the evening or night.

Winds will be south-westerly at speeds of around 30–40 kmph. Wind speeds may increase
up to 50–60 kmph at times in the sea areas extending from Kankasanthurai to Chilaw
via Mannar and from Matara to Pottuvil via Hambantota.

Sea conditions in the areas from Kankasanthurai to Chilaw and from Matara to Pottuvil
are expected to be rough at times. Wave heights may increase to around 2.0–2.5 metres
in the sea areas extending from Puttalam to Pottuvil via Colombo, Galle and Matara.
During thundershowers, temporarily strong gusty winds and very rough seas can occur.

![](https://meteo.gov.lk/gifs/marine1.gif?t=1789995578299)