Mountain weather

Mourne Mountains

Mourne Mountains Mountain weather forecast table

Confidence

High confidence for the unsettled conditions for the next 5 days with summits gales from Tuesday. Lower confidence regarding timings and distribution of rainfall.

Sunrise:
Sunset:

This evening forecast

Clear spells and perhaps the odd light shower at first. Strong winds on tops.

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.

hazard Poor Visibility
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.

hazard Severe Chill Effect
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.

Mountain weather forecast

Largely cloudy, spots of light rain possible, some brightness in afternoon. Breezy on tops.

Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 700m)
Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Partly cloudy (night) Partly cloudy (night)
Chance of precipitation
(at 700m)
20% 20% 20% 20% 20% 10% 10% 10%

Wind direction and speed (mph)
Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m S
23
S
22
S
22
S
21
S
21
SE
19
SE
21
SE
21
300m S
10
S
10
S
10
S
10
S
12
SE
11
SE
13
SE
12
Valley S
7
S
8
S
9
S
9
S
11
SE
10
SE
11
SE
10
Wind gust (mph)
Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m 32 32 31 29 29 26 30 30
300m 20 20 20 19 21 19 22 22
Valley 18 19 19 19 21 18 22 21

Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m
300m
Valley
Freezing Level
900m
1,000m
1,000m
1,000m
1,000m
1,100m
1,100m
1,100m

Altitude above mean sea level
Time 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
600m
-4°
-3°
-3°
-3°
-3°
-2°
-3°
-3°
300m
Valley

Additional weather information

Meteorologist's view

Note the fresh to strong winds on tops giving a sub-zero windchill.

Weather

A rather cloudy day with patches of hill fog coming and going. The odd spot of light rain is possible in the morning, while the best of any brighter spells are expected in the afternoon. Fresh to strong winds on tops.

Chance of cloud-free hill tops

40%, best chances in the afternoon.

Low cloud and visibility

Patchy cloud bases around 600-700m with some breaks at times, mainly in the afternoon. Visibility will be generally good below cloud bases, but perhaps falling to a few kilometres in any rain in the morning.

Sunrise:
Sunset:

Mountain weather information

Weather

A very windy day with gales on summits and in exposure, increasing to severe gale force during the afternoon. Mainly dry with bright spells to start, turning cloudier through the afternoon with a risk of patchy rain by evening.

Chance of cloud-free hill tops

60% decreasing to 30% during the afternoon.

Maximum wind speed expected

45-50mph mean speeds by evening on summits and ridges, gusting to 60mph.

Temperature

  • At 700m Plus 1 Celsius rising 3 Celsius in the afternoon.
  • Valley Plus 4 Celsius rising 8 Celsius in the afternoon.
  • Freezing level Above summits.

Low cloud and visibility

A few patches of cloud around 700m in the morning, becoming more occasional and lowering at times in the afternoon. Generally good visibility below cloud bases.

Mountain weather information

Wed 21 Jan

Sunrise:
Sunset:

Rather cloudy with scattered showers, perhaps heavy in the morning. Strong winds, severe gales on summits.

Thu 22 Jan

Sunrise:
Sunset:

Cloudy with showers or longer spells of rain. Remaining windy with gales of severe gales on summits.

Fri 23 Jan

Sunrise:
Sunset:

Largely cloudy with risk of rain or showers. Still rather windy.

Updated at:

Summit specific forecast

Mountain summit forecast map

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