Slieve Bearnagh (County Down) weather

Find a forecast

Forecast days

Today

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 7° Celsius;

Sunrise: 07:01

Sunset: 19:34

Partly cloudy.

M UV

L Pollution

No pollen data.

Mourne Mountains (Mountain region)

Today

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 7° Celsius;
Thu 18 Sep

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 07:03

Sunset: 19:32

Cloudy changing to light rain by late morning.

M UV

L Pollution

No pollen data.

Mourne Mountains (Mountain region)

Thu 18 Sep

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 9° Celsius;
Fri 19 Sep

Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 6° Celsius;

Sunrise: 07:05

Sunset: 19:29

Cloudy changing to sunny intervals by late morning.

M UV

L Pollution

No pollen data.

Mourne Mountains (Mountain region)

Fri 19 Sep

Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 6° Celsius;
Sat 20 Sep

Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 2° Celsius;

Sunrise: 07:07

Sunset: 19:27

Cloudy changing to heavy rain in the afternoon.

L UV

L Pollution

No pollen data.

Mourne Mountains (Mountain region)

Sat 20 Sep

Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 2° Celsius;
Sun 21 Sep

Maximum daytime temperature: 8° Celsius; Minimum nighttime temperature: 2° Celsius;

Sunrise: 07:08

Sunset: 19:24

Sunny intervals changing to partly cloudy by early evening.

M UV

L Pollution

No pollen data.

Mourne Mountains (Mountain region)

Sun 21 Sep

Maximum daytime temperature: 8° Celsius; Minimum nighttime temperature: 2° Celsius;
Mon 22 Sep

Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 0° Celsius;

Sunrise: 07:10

Sunset: 19:22

Sunny intervals changing to cloudy by late morning.

M UV

No pollution data.

No pollen data.

Mourne Mountains (Mountain region)

Mon 22 Sep

Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 0° Celsius;
Tue 23 Sep

Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 1° Celsius;

Sunrise: 07:12

Sunset: 19:19

Sunny intervals changing to cloudy by late morning.

M UV

No pollution data.

No pollen data.

Tue 23 Sep

Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 1° Celsius;

Partly cloudy.

Sunrise: 07:01

Sunset: 19:34

M UV

L Pollution

No pollen data.

Mourne Mountains (Mountain region)

7 day forecast for Slieve Bearnagh

Today (17 September 2025)

Time	23:00
Weather symbols
Chance of precipitation	<5%
Temperature (°C)	8°
Feels like temperature (°C)	2°
Wind direction and speed (mph)	WSW 36
Wind gust (mph)	40
Visibility (description)	E
Humidity	85%
UV	-

Thursday (18 September 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	30%	40%	50%	70%	80%	80%	≥95%	≥95%	90%	70%	70%	70%	50%	60%	70%	60%
Temperature (°C)	7°	7°	7°	7°	7°	7°	7°	7°	7°	8°	8°	8°	9°	9°	10°	10°	11°	12°	12°	12°	12°	12°	12°	12°
Feels like temperature (°C)	2°	1°	1°	1°	1°	1°	1°	2°	2°	3°	4°	4°	5°	6°	6°	6°	7°	7°	8°	8°	7°	7°	7°	7°
Wind direction and speed (mph)	WSW 36	WSW 35	WSW 35	WSW 34	SW 32	SW 30	SW 27	SW 22	SW 20	SSW 18	SSW 18	SSW 18	SSW 18	S 19	S 21	S 25	SSW 27	SSW 30	SSW 31	SW 32	SSW 31	SSW 33	SSW 34	SSW 35
Wind gust (mph)	40	39	39	37	35	33	30	24	25	23	22	20	21	23	27	30	33	34	35	35	37	37	38	38
Visibility (description)	E	E	E	E	E	E	E	E	VG	E	VG	G	M	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	86%	87%	91%	90%	91%	92%	93%	93%	92%	89%	90%	94%	96%	98%	99%	99%	99%	99%	99%	99%	99%	99%	99%	100%
UV	-	-	-	-	-	-	-	1	1	1	2	2	2	2	2	2	1	1	1	1	-	-	-	-

Friday (19 September 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	60%	60%	70%	60%	50%	50%	40%	50%	50%	40%	40%	30%	20%	20%	10%	10%	10%	10%	20%	20%	20%	20%	20%	20%
Temperature (°C)	12°	12°	12°	12°	11°	11°	11°	10°	10°	10°	10°	10°	10°	11°	11°	11°	11°	10°	10°	9°	9°	8°	8°	8°
Feels like temperature (°C)	7°	7°	7°	7°	7°	7°	6°	6°	6°	6°	6°	6°	6°	7°	7°	7°	7°	7°	6°	5°	5°	4°	4°	4°
Wind direction and speed (mph)	SSW 34	SSW 34	SSW 33	SSW 32	SW 32	SW 31	SW 30	SW 27	SW 25	SW 22	WSW 22	SW 22	WSW 22	WSW 23	WSW 23	SW 23	SW 22	SW 21	SW 20	SW 19	SW 19	SW 19	SW 19	SW 18
Wind gust (mph)	38	37	36	36	35	34	33	30	27	25	24	25	25	26	26	25	24	23	22	21	21	21	21	20
Visibility (description)	VP	VP	VP	VP	VP	VP	P	P	VG	VG	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Humidity	99%	100%	100%	99%	99%	99%	98%	97%	96%	95%	92%	91%	84%	77%	72%	70%	70%	71%	77%	81%	83%	86%	87%	87%
UV	-	-	-	-	-	-	-	1	1	1	1	2	3	3	3	2	1	1	1	1	-	-	-	-

Saturday (20 September 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	20%	30%	30%	30%	30%	30%	20%	20%	20%	30%	30%	40%	40%	50%	50%	60%	70%	70%	70%	60%	60%	60%	60%	50%
Temperature (°C)	8°	8°	7°	7°	7°	7°	7°	7°	7°	7°	8°	8°	8°	8°	8°	8°	8°	7°	7°	6°	5°	5°	5°	5°
Feels like temperature (°C)	4°	4°	4°	3°	3°	3°	3°	3°	3°	3°	4°	4°	4°	4°	4°	4°	3°	2°	2°	1°	0°	-1°	-1°	-1°
Wind direction and speed (mph)	SW 17	SW 16	SW 16	SW 16	WSW 15	WSW 15	W 15	W 14	WNW 14	NW 14	NNW 16	N 17	N 20	N 20	N 21	N 22	N 23	N 25	NNW 26	NNW 26	NNW 25	NNW 26	NNW 26	N 27
Wind gust (mph)	19	18	17	18	18	18	16	17	19	18	20	22	27	29	30	34	32	34	32	31	31	31	31	33
Visibility (description)	E	E	E	E	E	E	E	VG	VG	VG	E	E	E	E	E	E	E	VG	VG	VG	VG	VG	E	E
Humidity	89%	91%	92%	92%	92%	93%	94%	94%	94%	92%	88%	84%	80%	82%	79%	79%	84%	86%	89%	93%	94%	92%	93%	93%
UV	-	-	-	-	-	-	-	1	1	1	1	1	2	1	1	1	1	1	1	1	-	-	-	-

Sunday (21 September 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	50%	50%	50%	40%	40%	40%	30%	30%	30%	40%	40%	40%	30%	30%	30%	30%	30%	20%	20%	20%	20%	20%	10%	10%
Temperature (°C)	4°	4°	4°	3°	3°	3°	3°	3°	3°	4°	5°	5°	6°	7°	7°	7°	7°	7°	6°	5°	5°	4°	4°	4°
Feels like temperature (°C)	-2°	-2°	-3°	-3°	-3°	-4°	-4°	-3°	-3°	-2°	-1°	-1°	0°	1°	2°	1°	2°	1°	1°	0°	-1°	-1°	-1°	-1°
Wind direction and speed (mph)	N 27	N 26	N 26	N 26	NNW 25	NNW 25	NNW 25	NNW 23	NNW 23	NNW 23	NNW 25	N 27	N 28	N 29	N 28	N 28	N 28	N 26	N 24	NNW 22	NNW 20	NNW 20	NNW 18	NNW 18
Wind gust (mph)	35	31	31	32	32	32	29	29	31	34	34	36	36	36	36	36	36	34	29	25	24	24	25	23
Visibility (description)	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Humidity	92%	92%	92%	92%	93%	92%	93%	92%	91%	89%	85%	79%	71%	66%	65%	65%	63%	66%	69%	75%	81%	83%	84%	84%
UV	-	-	-	-	-	-	-	1	1	1	2	3	4	4	3	2	2	1	1	1	-	-	-	-

Monday (22 September 2025)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	<5%	10%	10%	<5%	10%	10%
Temperature (°C)	4°	4°	3°	3°	6°	8°	8°	6°	3°
Feels like temperature (°C)	-1°	-1°	-2°	-2°	2°	4°	3°	1°	-2°
Wind direction and speed (mph)	N 17	N 16	N 14	N 14	N 16	NNE 20	NNE 23	N 17	N 15
Wind gust (mph)	23	22	20	19	22	25	25	19	17
Visibility (description)	E	E	E	VG	VG	VG	VG	VG	VG
Humidity	84%	85%	85%	85%	75%	61%	62%	78%	86%
UV	-	-	-	1	2	3	1	1	-

Tuesday (23 September 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	10%	10%	<5%	<5%	<5%
Temperature (°C)	2°	1°	1°	7°	9°	9°	7°	4°
Feels like temperature (°C)	-3°	-4°	-4°	3°	6°	5°	3°	0°
Wind direction and speed (mph)	NW 15	NW 13	NW 13	NW 15	NNW 19	NNE 19	ESE 14	SSE 13
Wind gust (mph)	16	14	16	21	21	21	16	15
Visibility (description)	G	G	G	VG	VG	VG	VG	G
Humidity	90%	92%	93%	79%	66%	64%	81%	90%
UV	-	-	1	2	3	2	1	-

UK video forecast

Slieve Bearnagh weather map

View the weather with our interactive map

Loading map...

Northern Ireland weather forecast

Headline:

Mainly cloudy. Othbreaks of rain, clearing later.

This Evening and Tonight:

The evening will be dry with clear periods. Cloud will increase from the late evening but the night will stay dry with clear spells. Freshening southwest winds. Minimum temperature 9 °C.

Thursday:

The day will start dry with bright spells, rain will spread north from mid-morning becoming heavy in the south for a time in the afternoon. Drier weather will follow later. Maximum temperature 18 °C.

Outlook for Friday to Sunday:

Mostly dry with sunny spells and the chance of an odd shower Friday. Showers become scattered Saturday but clear later to leave Sunday mainly dry.

Updated: 17:00 (UTC+1) on Wed 17 Sep 2025

UK long range weather forecast

Into next week, a northwest-southeast split is most likely. The best of drier spells will be in the north and northwest where some fog and frost patches are possible, but there will be spells or rain or showers in south and eastern areas, near to an area of low pressure. It will also turn colder, as a northerly flow becomes established for a time. Later in the week, more widely drier and settled conditions could develop as high pressure becomes more influential, although probably still with some coastal showers. Temperatures should gradually return closer to average in this period. Later in the period there may be a return to a more changeable pattern but this is uncertain.

Updated: 15:00 (UTC+1) on Wed 17 Sep 2025

By the beginning of October, confidence is very low in the weather regimes most likely to affect the UK. On balance, there will likely be a transition from slow-moving weather patterns to a more changeable period at some stage although the timing on this is highly uncertain. High pressure probably close to the UK, which would offer some occasional periods of dry weather, will likely give way to a more unsettled period with some short lived dry interludes during this time. Temperatures will likely fluctuate either side of, but often close to, average.

Updated: 16:00 (UTC+1) on Wed 17 Sep 2025

Slieve Bearnagh (County Down) weather

Find a forecast

Forecast days

Today

Today

Thu 18 Sep

Thu 18 Sep

Fri 19 Sep

Fri 19 Sep

Sat 20 Sep

Sat 20 Sep

Sun 21 Sep

Sun 21 Sep

Mon 22 Sep

Mon 22 Sep

Tue 23 Sep

Tue 23 Sep

7 day forecast for Slieve Bearnagh

Tooltip header

UK video forecast

Northern Ireland weather forecast

Headline:

This Evening and Tonight:

Thursday:

Outlook for Friday to Sunday:

UK long range weather forecast

Nearest forecasts

More from the Met Office

Causes of climate change

How to read synoptic weather charts

What is a heatwave?

July 2013 heat wave

Hurricane Sandy

5 tips for staying safe in snow

Website feedback

Slieve Bearnagh (County Down) weather

Find a forecast

Forecast days

Today

Today

Thu 18 Sep

Thu 18 Sep

Fri 19 Sep

Fri 19 Sep

Sat 20 Sep

Sat 20 Sep

Sun 21 Sep

Sun 21 Sep

Mon 22 Sep

Mon 22 Sep

Tue 23 Sep

Tue 23 Sep

7 day forecast for Slieve Bearnagh

UK video forecast

Northern Ireland weather forecast

Wednesday 17 Sep - Sunday 21 Sep

Headline:

This Evening and Tonight:

Thursday:

Outlook for Friday to Sunday:

UK long range weather forecast

Monday 22 Sep - Wednesday 1 Oct

Thursday 2 Oct - Thursday 16 Oct

Nearest forecasts

More from the Met Office

Causes of climate change

How to read synoptic weather charts

What is a heatwave?

July 2013 heat wave

Hurricane Sandy

5 tips for staying safe in snow

Website feedback