# Marine Weather Forecast for Sri Lanka on 21 December 2025

- Link: https://www.weather.lk/marine-weather-forecast-for-sri-lanka/
- Published: 2025-12-21T07:26:17+05:30
- Author: Weather LK

**Rough Seas and Strong Winds Expected Over Next 24 Hours**

Issued at 05.30 a.m. on 21 December 2025

The Department of Meteorology has issued an advisory for sea areas around Sri Lanka,
warning of **rough sea conditions and strong north-easterly winds** during the next
24 hours.

Showers are expected at several locations in the **sea areas off the coast extending
from Batticaloa to Colombo via Hambantota and Galle**, which may temporarily reduce
visibility for marine activities.

Winds across the surrounding sea areas will be **north-easterly**, with average 
speeds of **30–40 kmph**. However, wind speeds may **increase to 50–55 kmph at times**,
particularly in the **sea areas from Colombo to Mannar via Puttalam** and from **
Matara to Batticaloa via Hambantota**.

As a result, the **sea areas off the coast from Colombo to Mannar via Puttalam and
from Matara to Batticaloa via Hambantota** are expected to be **rough at times**.
Other sea areas around the island will experience **moderate sea conditions**.

Fishermen and maritime operators are advised to **exercise caution** and stay alert
for further updates issued by the Department of Meteorology.

![](https://www.weather.lk/wp-content/uploads/2025/12/Wave-Height-Wind_Surface_WW3ENS-
Global_20251221T0730000530-1-1024x463.jpg)