Slieve Donard (County Down) weather

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Forecast days

Fri 26 Jun

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 11° Celsius;

Sunrise: 04:52

Sunset: 22:01

Yellow weather warning.

H UV

M Pollution

H Pollen

Next low tide: 03:49 for
Newcastle (Beach)

Mourne Mountains (Mountain region)

Fri 26 Jun

Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius;
Sat 27 Jun

Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 8° Celsius;

Sunrise: 04:53

Sunset: 22:01

Fog changing to heavy rain by nighttime.

H UV

L Pollution

M Pollen

First high tide: 10:55 for
Newcastle (Beach)

Mourne Mountains (Mountain region)

Sat 27 Jun

Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius;
Sun 28 Jun

Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 7° Celsius;

Sunrise: 04:53

Sunset: 22:01

Sunny intervals changing to partly cloudy by nighttime.

H UV

L Pollution

M Pollen

First high tide: 11:38 for
Newcastle (Beach)

Mourne Mountains (Mountain region)

Sun 28 Jun

Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius;
Mon 29 Jun

Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 6° Celsius;

Sunrise: 04:54

Sunset: 22:00

Fog changing to sunny intervals by late morning.

H UV

L Pollution

H Pollen

First high tide: 12:17 for
Newcastle (Beach)

Mourne Mountains (Mountain region)

Mon 29 Jun

Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius;
Tue 30 Jun

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 4° Celsius;

Sunrise: 04:54

Sunset: 22:00

Cloudy changing to sunny intervals by late morning.

H UV

No pollution data.

No pollen data.

First high tide: 00:35 for
Newcastle (Beach)

Mourne Mountains (Mountain region)

Tue 30 Jun

Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius;
Wed 1 Jul

Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 6° Celsius;

Sunrise: 04:55

Sunset: 22:00

Mist changing to cloudy by lunchtime.

M UV

No pollution data.

No pollen data.

First high tide: 01:08 for
Newcastle (Beach)

Wed 1 Jul

Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius;
Thu 2 Jul

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 5° Celsius;

Sunrise: 04:56

Sunset: 21:59

Cloudy changing to sunny intervals by late morning.

H UV

No pollution data.

No pollen data.

First high tide: 01:38 for
Newcastle (Beach)

Thu 2 Jul

Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius;

Yellow weather warning.

Sunrise: 04:52

Sunset: 22:01

H UV

M Pollution

H Pollen

Next low tide: 03:49 for

Newcastle (Beach)

Mourne Mountains (Mountain region)

Yellow warning: Thunderstorm

7 day forecast for Slieve Donard

Today (26 June 2026)

Time	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%	10%	10%	30%	30%	10%	<5%	10%	20%	30%	40%	20%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	18°	16°	16°	16°	17°	17°	18°	18°	18°	18°	18°	18°	17°	16°	16°	16°	15°	14°	14°	13°	12°
Feels like temperature (°C)	14°	12°	12°	13°	15°	16°	16°	17°	17°	17°	16°	14°	13°	12°	11°	11°	9°	8°	7°	7°	7°
Wind direction and speed (mph)	W 21	W 22	W 20	WNW 17	NNW 12	N 11	NW 10	WNW 9	NNW 9	ENE 10	ESE 14	SE 17	SSE 20	S 22	S 26	SSW 28	SSW 36	SSW 39	SSW 40	SSW 41	SSW 41
Wind gust (mph)	23	24	22	19	15	15	15	16	17	17	19	20	22	25	27	29	39	43	44	45	45
Visibility (description)	VG	VG	G	G	VG	G	M	G	M	P	G	M	P	P	P	M	M	P	VP	VP	VP
Humidity	77%	82%	84%	84%	82%	80%	79%	80%	80%	79%	78%	79%	82%	85%	85%	84%	85%	87%	90%	92%	94%
UV	-	1	1	1	1	2	3	4	5	5	6	5	5	4	3	2	1	1	1	1	-

Saturday (27 June 2026)

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%	10%	10%	20%	10%	20%	10%	10%	10%	20%	30%	30%	30%	30%	40%	30%	40%	40%	40%	50%	70%	80%	80%
Temperature (°C)	12°	12°	12°	12°	12°	12°	12°	12°	12°	11°	11°	11°	11°	12°	12°	12°	12°	12°	12°	11°	11°	11°	11°	11°
Feels like temperature (°C)	6°	7°	7°	7°	7°	7°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°
Wind direction and speed (mph)	SSW 40	SSW 34	SSW 32	S 33	S 34	S 35	SSW 36	SSW 37	S 37	S 37	S 37	S 37	S 38	S 44	S 42	S 41	S 40	S 39	S 39	S 39	SSW 38	SSW 37	SSW 34	SSW 32
Wind gust (mph)	44	37	36	36	37	39	40	41	41	41	41	41	42	48	46	45	44	43	43	43	42	41	38	35
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	96%	97%	98%	99%	100%	99%	99%	99%	99%	98%	98%	98%	98%	98%	98%	98%	98%	98%	99%	99%	99%	100%	100%	99%
UV	-	-	-	-	1	1	1	1	2	3	4	5	6	6	6	5	4	3	1	1	1	1	1	-

Sunday (28 June 2026)

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	80%	70%	50%	40%	30%	20%	20%	10%	<5%	10%	10%	10%	30%	40%	30%	20%	10%	20%	10%	10%	10%	10%	<5%	<5%
Temperature (°C)	11°	10°	10°	9°	9°	9°	8°	8°	8°	9°	9°	9°	10°	10°	10°	11°	11°	11°	11°	10°	10°	9°	8°	8°
Feels like temperature (°C)	6°	6°	6°	5°	5°	5°	4°	4°	4°	4°	4°	5°	5°	5°	6°	6°	6°	6°	6°	5°	5°	4°	3°	2°
Wind direction and speed (mph)	SW 29	SW 24	SW 24	SW 24	WSW 23	WSW 23	WSW 23	WSW 24	WSW 26	WSW 27	WSW 26	WSW 27	WSW 28	WSW 33	WSW 33	WSW 34	WSW 35	WSW 35	WSW 34	WSW 34	WSW 33	WSW 31	WSW 31	WSW 31
Wind gust (mph)	32	26	26	26	26	25	25	26	29	29	29	30	28	36	36	37	38	38	38	38	36	34	34	34
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	P	M	M	G	VG	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	M
Humidity	98%	96%	96%	96%	96%	96%	94%	92%	85%	76%	72%	66%	64%	62%	60%	59%	56%	56%	57%	59%	64%	67%	74%	77%
UV	-	-	-	-	1	1	1	1	2	3	4	5	6	5	6	5	4	3	2	1	1	1	1	-

Monday (29 June 2026)

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%	10%	10%	10%	<5%	<5%	<5%	10%	10%	10%	10%	10%	20%	20%	20%	30%	30%	30%	30%	30%	30%	30%
Temperature (°C)	7°	7°	7°	7°	7°	7°	8°	8°	8°	9°	9°	10°	10°	11°	12°	12°	12°	12°	12°	11°	11°	10°	9°	9°
Feels like temperature (°C)	2°	2°	2°	2°	2°	2°	2°	3°	4°	4°	5°	6°	7°	7°	7°	8°	8°	8°	8°	7°	7°	7°	6°	6°
Wind direction and speed (mph)	WSW 32	WSW 28	WSW 28	WSW 28	WSW 28	WSW 28	WSW 28	WSW 27	WSW 27	WSW 26	WSW 25	WSW 24	WSW 23	WSW 26	SW 26	SW 25	SW 25	SW 25	SW 24	SW 22	SW 20	SW 19	SW 18	SW 17
Wind gust (mph)	35	31	31	31	31	31	31	30	29	28	27	26	25	28	28	28	28	27	26	24	22	21	20	19
Visibility (description)	M	P	P	VP	VP	VP	VP	VP	VP	VP	P	P	P	M	M	G	G	VG	G	G	M	M	G	G
Humidity	82%	85%	87%	89%	91%	92%	90%	88%	86%	83%	79%	75%	72%	71%	69%	68%	70%	70%	72%	75%	78%	81%	85%	86%
UV	-	-	-	-	1	1	1	1	2	3	4	5	5	6	5	4	3	2	1	1	1	1	-	-

Tuesday (30 June 2026)

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	30%	30%	20%	20%	20%	20%	20%	20%	20%	20%	10%	10%	10%	20%	20%	20%	20%	20%	20%	10%	10%	10%	<5%	<5%
Temperature (°C)	9°	9°	9°	8°	8°	8°	8°	9°	9°	10°	10°	11°	11°	12°	12°	13°	12°	12°	12°	11°	11°	10°	7°	5°
Feels like temperature (°C)	5°	5°	5°	5°	4°	4°	5°	7°	7°	7°	8°	8°	9°	9°	9°	10°	9°	9°	9°	8°	8°	7°	3°	2°
Wind direction and speed (mph)	SW 17	SW 17	SW 16	SW 15	SW 15	SW 14	SSW 12	SSW 9	S 9	SSE 10	SSE 11	SSE 13	S 13	SSE 15	S 16	S 16	SSW 16	SSW 15	S 15	S 21	S 17	S 13	S 13	SSW 10
Wind gust (mph)	18	19	18	17	16	15	13	10	10	11	13	14	15	16	17	17	17	17	17	23	19	15	15	12
Visibility (description)	M	P	P	P	P	P	P	VP	VP	VP	P	P	P	P	P	P	M	M	M	M	VG	G	G	M
Humidity	88%	90%	91%	91%	92%	93%	92%	88%	85%	82%	78%	76%	71%	70%	68%	68%	68%	69%	70%	72%	74%	84%	91%	95%
UV	-	-	-	-	1	1	1	1	2	3	4	5	5	6	6	5	4	3	2	1	1	1	-	-

Wednesday (1 July 2026)

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%	20%	20%	30%	40%	40%	30%	20%
Temperature (°C)	5°	5°	5°	9°	11°	13°	13°	12°	9°
Feels like temperature (°C)	2°	2°	2°	6°	6°	6°	6°	6°	4°
Wind direction and speed (mph)	S 10	SSW 8	S 9	S 12	S 33	SSW 44	SW 44	WSW 43	W 35
Wind gust (mph)	–	9	10	20	36	48	49	47	38
Visibility (description)	M	M	VP	VP	VP	VP	VP	VP	P
Humidity	97%	97%	98%	92%	79%	76%	77%	76%	82%
UV	-	-	1	1	3	5	3	1	-

Thursday (2 July 2026)

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)	8°	7°	8°	9°	11°	12°	11°	7°
Feels like temperature (°C)	2°	2°	2°	4°	5°	5°	5°	1°
Wind direction and speed (mph)	W 33	W 31	W 35	W 43	W 49	W 51	W 45	WNW 32
Wind gust (mph)	37	34	39	47	54	56	50	35
Visibility (description)	VP	VP	VP	P	M	G	G	G
Humidity	85%	85%	83%	70%	60%	56%	60%	74%
UV	-	1	1	4	7	4	1	-

News

Met Office issues Red Warning for Extreme Heat for record third consecutive day

The Met Office has issued a Red Warning for Extreme Heat for Friday. The first time in the history of the current weather warnings system that red warnings hav…

UK video forecast

Slieve Donard weather map

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Northern Ireland weather forecast

Headline:

Chance of some thundery rain showers on Friday morning.

This Evening and Tonight:

A largely fine end to the day with some late sunshine but an increasing risk of showers overnight, perhaps occasionally heavy and thundery towards the end of the night. Minimum temperature 13 °C.

Friday:

A rather cloudy morning with some showery, perhaps thundery, rain around. Becoming brighter from the south through the afternoon but still some showers around. Warm and humid. Maximum temperature 26 °C.

Outlook for Saturday to Monday:

Dry, bright start Saturday but occasionally heavy rain spreads east in afternoon. Sunday and Monday look much cooler with sunny spells and showers and an occasionally fresh southwesterly breeze.

Updated: 16:00 (UTC+1) on Thu 25 Jun 2026

UK long range weather forecast

Fairly changeable conditions at first with periods of rain and showers, and there could be some thundery outbreaks at times. The best of the drier and brighter weather initially will be across the southeast. Then perhaps a drier start to July for many, although the northwest may still see some rain at times, and perhaps accompanied by some strong winds. Temperatures are likely to be near average in the north and slightly warmer than average in the south, but with winds generally from the west temperatures aren't expected to be as hot as seen recently.

Updated: 13:00 (UTC+1) on Thu 25 Jun 2026

High pressure patterns are looking slightly more likely than low pressure patterns during the early part of this period, meaning a greater chance of settled and drier than average conditions. Although with outbreaks of rain and stronger winds at times, more especially across the north. There is still a chance of some changeable or more unsettled conditions developing later in the period, with a risk of some heavy and thundery showers. Temperatures are likely to be above normal on the whole, with a greater than normal chance of hot conditions developing at times.

Updated: 14:00 (UTC+1) on Thu 25 Jun 2026

Slieve Donard (County Down) weather

Find a forecast

Forecast days

Fri 26 Jun

Fri 26 Jun

Sat 27 Jun

Sat 27 Jun

Sun 28 Jun

Sun 28 Jun

Mon 29 Jun

Mon 29 Jun

Tue 30 Jun

Tue 30 Jun

Wed 1 Jul

Wed 1 Jul

Thu 2 Jul

Thu 2 Jul

7 day forecast for Slieve Donard

Tooltip header

Met Office issues Red Warning for Extreme Heat for record third consecutive day

UK video forecast

Northern Ireland weather forecast

Headline:

This Evening and Tonight:

Friday:

Outlook for Saturday to Monday:

UK long range weather forecast

Nearest forecasts

Slieve Donard (County Down) weather

Find a forecast

Forecast days

Fri 26 Jun

Fri 26 Jun

Sat 27 Jun

Sat 27 Jun

Sun 28 Jun

Sun 28 Jun

Mon 29 Jun

Mon 29 Jun

Tue 30 Jun

Tue 30 Jun

Wed 1 Jul

Wed 1 Jul

Thu 2 Jul

Thu 2 Jul

7 day forecast for Slieve Donard

Met Office issues Red Warning for Extreme Heat for record third consecutive day

UK video forecast

Northern Ireland weather forecast

Thursday 25 Jun - Monday 29 Jun

Headline:

This Evening and Tonight:

Friday:

Outlook for Saturday to Monday:

UK long range weather forecast

Tuesday 30 Jun - Thursday 9 Jul

Friday 10 Jul - Friday 24 Jul

Nearest forecasts