# SRI LANKA WEATHER FORECAST FOR SEA AREAS 18 December 2025

- Link: https://www.weather.lk/sri-lanka-weather-forecast-for-sea-areas-18-december-2025/
- Published: 2025-12-18T08:13:17+05:30
- Author: Weather LK

## Rough Seas Expected in Several Maritime Areas Around Sri Lanka

Issued at 05.30 a.m. on 18 December 2025

Showery conditions are expected in several sea areas around Sri Lanka during the
next 24 hours, according to the Department of Meteorology.

Showers are forecast at several places in the sea areas off the coast extending 
from **Mannar to Hambantota via Kankasanthurai, Trincomalee and Pottuvil**. In addition,**
showers or thundershowers** may occur in other surrounding sea areas, particularly
during the **evening or night**.

Winds over the sea areas will be **north-easterly**, with speeds generally ranging
between **30 and 40 kmph**. However, wind speeds may **increase up to 50–55 kmph
at times** in sea areas off the coast extending from **Colombo to Galle via Puttalam,
Kankasanthurai, Trincomalee, Pottuvil and Hambantota**.

As a result of these conditions, the **sea areas from Colombo to Galle via Puttalam,
Kankasanthurai, Trincomalee, Pottuvil and Hambantota are expected to be rough at
times**. Sea conditions in other areas around the island are expected to remain **
moderate**.

![](https://www.weather.lk/wp-content/uploads/2025/12/Wave-Height-Wind_Surface_MFWAM-
Global_20251218T1130000530-1024x463.jpg)

The Department of Meteorology warns that **temporarily strong gusty winds and very
rough seas** can occur during thundershowers and advises **fishermen and naval communities
to exercise caution** when engaging in sea activities.