Lakes in Ireland - 10 Day Forecast

Inland lakes forecast issued at: 1330 Thursday 04 December 2025

Meteorological Situation at 0900

Ireland lies in a moderate to strong westerly airflow generated by a broad and complex depression in North Atlantic. A small depression of 978hPa centred around 190 nautical miles northwest of Erris Head will remain relatively stationary today whilst weakening. Associated frontal troughs are embedded in the flow.

SURFACE ANALYSIS

Forecast for Lough Derg for daylight hours today:

Wind:

Southwesterly force 3 or 4.

Weather:

Fair with isolated showers at first. Fair to cloudy towards evening with scattered showers spreading from the west.

Visibility:

Good, decreasing moderate to poor in precipitation.

Winds Overnight:

Southwesterly force 3 or 4, backing southeasterly overnight.

Outlook:

Fresh to strong southeasterly winds developing in the morning occasionally near gale and gusty, veering south to southwest and easing moderate to fresh in the afternoon. Weather: Rain, heavy at times. Becoming cloudy to fair with scattered showers, turning heavy at times, tomorrow

Forecast for Lough Ree for daylight hours today:

Wind:

Southwesterly force 2 to 4.

Weather:

Fair at first. Fair to cloudy towards evening with scattered showers spreading from the west.

Visibility:

Good, decreasing moderate to poor in precipitation.

Winds Overnight:

Southwesterly force 3 or 4, backing southeasterly overnight.

Outlook:

Fresh to strong southeasterly winds developing in the morning occasionally near gale and gusty, veering south to southwest and easing moderate to fresh in the afternoon. Weather: Rain, heavy at times. Becoming cloudy to fair with scattered showers, turning heavy at times, tomorrow

Forecast for Lough Corrib and Lough Mask for daylight hours today:

Wind:

Southwesterly force 3 or 4, occasionally force 5.

Weather:

Fair to cloudy with occasional showers merging to longer spells of rain later this afternoon, heavy at times, with a chance of hail and isolated thunderstorms.

Visibility:

Good, decreasing moderate to poor in precipitation.

Winds Overnight:

Southwesterly force 3 or 4, backing southeasterly overnight.

Outlook:

Fresh to strong southeasterly winds developing in the morning occasionally near gale and gusty, veering south to southwest and easing moderate to fresh in the afternoon. Weather: Rain, heavy at times. Becoming cloudy to fair with scattered showers, turning heavy at times, tomorrow afternoon.

Forecast for Lough Key and Lough Allen for daylight hours today:

Wind:

Southerly force 2 to 4.

Weather:

Fair at first. Fair to cloudy towards evening with scattered showers spreading from the west.

Visibility:

Good, decreasing moderate to poor in precipitation.

Winds Overnight:

Southerly force 3 or 4.

Outlook:

Fresh to strong southeasterly winds developing in the morning occasionally near gale and gusty, veering south to southwest and easing moderate to fresh in the afternoon. Weather: Rain, heavy at times. Becoming cloudy to fair with scattered showers, turning heavy at times, tomorrow