Slievemartin (County Down) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius; -
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius; -
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius; -
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius; -
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius; -
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius;
-
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
Light showers changing to sunny intervals by early evening.
Sunrise:
Sunset:
M UV
L Pollution
No pollen data.
7 day forecast for Slievemartin
Today (17 September 2026)
| Time |
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%
|
70%
|
80%
|
80%
|
90%
|
70%
|
50%
|
30%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
| Temperature |
10°
|
10°
|
10°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
9°
|
9°
|
9°
|
| Feels like temperature (°C) |
6°
|
7°
|
7°
|
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
7°
|
6°
|
6°
|
6°
|
6°
|
| Wind direction and speed |
W
17
|
W
18
|
W
18
|
W
19
|
W
19
|
W
20
|
WNW
21
|
WNW
21
|
WNW
19
|
WNW
18
|
WNW
16
|
WNW
14
|
WNW
13
|
W
11
|
| Wind gust (mph) |
30
|
31
|
32
|
32
|
34
|
35
|
34
|
32
|
31
|
28
|
26
|
25
|
26
|
26
|
| Visibility |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
85%
|
78%
|
77%
|
72%
|
75%
|
73%
|
67%
|
68%
|
67%
|
67%
|
73%
|
75%
|
76%
|
79%
|
| UV | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Friday (18 September 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 |
10%
|
10%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
30%
|
80%
|
≥95%
|
≥95%
|
≥95%
|
90%
|
70%
|
80%
|
70%
|
60%
|
70%
|
70%
|
70%
|
60%
|
70%
|
| Temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
| Feels like temperature (°C) |
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
7°
|
7°
|
7°
|
7°
|
8°
|
7°
|
7°
|
7°
|
7°
|
8°
|
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
| Wind direction and speed (mph) |
W
11
|
W
11
|
W
11
|
W
11
|
W
10
|
W
9
|
W
7
|
W
7
|
SW
7
|
S
8
|
S
9
|
S
11
|
SSW
14
|
SSW
15
|
SSW
16
|
SW
16
|
SW
16
|
WSW
16
|
WSW
16
|
WSW
16
|
WSW
16
|
WSW
15
|
WSW
14
|
WSW
13
|
| Wind gust (mph) |
26
|
26
|
26
|
26
|
25
|
23
|
23
|
23
|
24
|
26
|
28
|
30
|
32
|
34
|
35
|
33
|
32
|
32
|
30
|
30
|
28
|
28
|
27
|
27
|
| Visibility (description) |
G
|
M
|
M
|
M
|
M
|
P
|
P
|
M
|
M
|
M
|
M
|
M
|
P
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
| Humidity |
83%
|
84%
|
85%
|
86%
|
87%
|
89%
|
90%
|
91%
|
88%
|
86%
|
85%
|
87%
|
90%
|
94%
|
95%
|
96%
|
96%
|
96%
|
96%
|
96%
|
96%
|
96%
|
96%
|
96%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
Saturday (19 September 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 |
60%
|
60%
|
30%
|
20%
|
20%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
10%
|
20%
|
30%
|
20%
|
10%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
11°
|
11°
|
12°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
10°
|
10°
|
9°
|
9°
|
| Feels like temperature (°C) |
10°
|
10°
|
9°
|
9°
|
9°
|
9°
|
8°
|
7°
|
8°
|
7°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
8°
|
8°
|
7°
|
7°
|
6°
|
| Wind direction and speed (mph) |
WSW
13
|
WSW
14
|
WSW
14
|
WSW
13
|
WSW
13
|
W
13
|
W
13
|
W
13
|
W
13
|
W
14
|
WSW
16
|
W
17
|
W
18
|
W
19
|
W
19
|
W
18
|
W
18
|
W
16
|
W
16
|
W
14
|
W
11
|
W
11
|
W
10
|
W
10
|
| Wind gust (mph) |
27
|
27
|
27
|
27
|
26
|
26
|
25
|
25
|
26
|
28
|
30
|
30
|
31
|
30
|
30
|
29
|
29
|
28
|
26
|
23
|
23
|
22
|
22
|
22
|
| Visibility (description) |
VP
|
P
|
P
|
P
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
95%
|
93%
|
92%
|
91%
|
91%
|
89%
|
87%
|
87%
|
86%
|
85%
|
79%
|
75%
|
68%
|
66%
|
63%
|
62%
|
60%
|
59%
|
62%
|
66%
|
69%
|
73%
|
75%
|
78%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Sunday (20 September 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%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
30%
|
40%
|
40%
|
50%
|
40%
|
40%
|
40%
|
30%
|
| Temperature (°C) |
9°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
9°
|
9°
|
10°
|
10°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
13°
|
13°
|
| Feels like temperature (°C) |
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
7°
|
6°
|
7°
|
7°
|
8°
|
8°
|
10°
|
10°
|
10°
|
11°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
11°
|
12°
|
| Wind direction and speed (mph) |
W
10
|
W
9
|
W
9
|
WNW
9
|
WNW
9
|
WNW
8
|
WNW
7
|
WNW
7
|
NW
6
|
WNW
6
|
WSW
7
|
WSW
9
|
WSW
9
|
WSW
9
|
SW
9
|
SW
9
|
SSW
9
|
S
9
|
S
9
|
SE
9
|
SE
9
|
SE
9
|
SE
9
|
S
8
|
| Wind gust (mph) |
23
|
22
|
22
|
21
|
21
|
20
|
19
|
19
|
18
|
18
|
19
|
19
|
19
|
19
|
19
|
18
|
17
|
15
|
16
|
16
|
18
|
19
|
21
|
22
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
G
|
M
|
G
|
M
|
M
|
M
|
M
|
M
|
G
|
M
|
M
|
M
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
VP
|
| Humidity |
83%
|
84%
|
84%
|
85%
|
85%
|
86%
|
87%
|
88%
|
86%
|
81%
|
76%
|
72%
|
66%
|
65%
|
64%
|
67%
|
74%
|
81%
|
85%
|
87%
|
89%
|
92%
|
95%
|
97%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
Monday (21 September 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%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
15°
|
15°
|
16°
|
17°
|
17°
|
17°
|
16°
|
16°
|
15°
|
14°
|
14°
|
14°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
13°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
16°
|
15°
|
15°
|
14°
|
13°
|
13°
|
12°
|
| Wind direction and speed (mph) |
SW
8
|
SW
7
|
WSW
8
|
W
9
|
W
8
|
WNW
8
|
WNW
8
|
WNW
8
|
WNW
7
|
W
7
|
W
7
|
W
7
|
WSW
7
|
SW
7
|
SSW
8
|
SSW
9
|
SSW
9
|
S
9
|
S
9
|
SSE
8
|
SSE
8
|
SSE
8
|
S
9
|
S
9
|
| Wind gust (mph) |
22
|
22
|
22
|
22
|
21
|
21
|
21
|
20
|
20
|
20
|
20
|
20
|
20
|
20
|
19
|
19
|
18
|
17
|
15
|
15
|
16
|
17
|
17
|
17
|
| Visibility (description) |
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
VP
|
P
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
M
|
P
|
P
|
P
|
| Humidity |
98%
|
98%
|
98%
|
98%
|
98%
|
98%
|
98%
|
97%
|
97%
|
96%
|
94%
|
93%
|
90%
|
86%
|
84%
|
82%
|
81%
|
81%
|
84%
|
87%
|
90%
|
92%
|
93%
|
94%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Tuesday (22 September 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%
|
10%
|
20%
|
30%
|
50%
|
50%
|
30%
|
20%
|
20%
|
| Temperature (°C) |
13°
|
13°
|
12°
|
12°
|
12°
|
13°
|
13°
|
11°
|
10°
|
| Feels like temperature (°C) |
12°
|
11°
|
10°
|
10°
|
10°
|
11°
|
10°
|
9°
|
8°
|
| Wind direction and speed (mph) |
SSW
9
|
SSW
9
|
SSW
10
|
SSW
11
|
SW
11
|
W
11
|
WNW
11
|
WNW
8
|
W
7
|
| Wind gust (mph) |
17
|
17
|
18
|
20
|
21
|
21
|
18
|
12
|
11
|
| Visibility (description) |
VP
|
VP
|
VP
|
VP
|
P
|
M
|
M
|
M
|
M
|
| Humidity |
95%
|
95%
|
95%
|
94%
|
92%
|
86%
|
78%
|
80%
|
86%
|
| UV | - | - | - | 1 | 1 | 2 | 1 | 1 | - |
Wednesday (23 September 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
10%
|
10%
|
10%
|
20%
|
20%
|
10%
|
10%
|
| Temperature (°C) |
9°
|
9°
|
8°
|
10°
|
12°
|
12°
|
10°
|
9°
|
| Feels like temperature (°C) |
7°
|
7°
|
6°
|
8°
|
9°
|
10°
|
8°
|
7°
|
| Wind direction and speed (mph) |
W
7
|
WNW
8
|
W
7
|
WNW
9
|
WNW
11
|
W
11
|
WSW
9
|
SW
10
|
| Wind gust (mph) |
10
|
9
|
11
|
18
|
19
|
18
|
12
|
13
|
| Visibility (description) |
P
|
P
|
M
|
G
|
G
|
VG
|
G
|
G
|
| Humidity |
91%
|
92%
|
94%
|
82%
|
66%
|
62%
|
78%
|
87%
|
| UV | - | - | 1 | 2 | 3 | 1 | 1 | - |
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Northern Ireland weather forecast
Headline:
Breezy with showers today.
Today:
Variable amounts of cloud and some bright or sunny spells. There will be scattered showers, these becoming fewer later in the afternoon. Windy with fresh occasionally strong westerly winds. Maximum temperature 16 °C.
Tonight:
Mainly dry this evening with just the odd passing shower. Then the rest of the night will be dry. Westerly winds easing down, but remaining fresh along the north coast. Minimum temperature 11 °C.
Friday:
After a dry start rain will spread east during the morning, turning light and patchy from the west in the afternoon. Maximum temperature 18 °C.
Outlook for Saturday to Monday:
Mostly dry with bright spells on Saturday, the odd passing shower in the north. Dry at first on Sunday, rain spreading east later. Dry, warmer with bright spells on Monday.
Updated: