Trawsfynydd (Gwynedd) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 5° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius; -
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius; -
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius; -
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 3° Celsius;
Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius; -
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius; -
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 3° Celsius;
Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius;
-
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 3° Celsius;
Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius;
Overcast changing to heavy rain by late morning.
Sunrise:
Sunset:
7 day forecast for Trawsfynydd
Today (29 March 2026)
| Time |
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%
|
70%
|
90%
|
≥95%
|
≥95%
|
≥95%
|
≥95%
|
90%
|
50%
|
20%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
4°
|
4°
|
4°
|
5°
|
5°
|
6°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
9°
|
9°
|
9°
|
8°
|
7°
|
7°
|
7°
|
| Feels like temperature (°C) |
1°
|
1°
|
1°
|
1°
|
1°
|
2°
|
2°
|
2°
|
2°
|
2°
|
3°
|
3°
|
4°
|
5°
|
5°
|
5°
|
5°
|
4°
|
3°
|
3°
|
| Wind direction and speed |
SW
7
|
WSW
8
|
SW
10
|
SW
11
|
SW
14
|
WSW
17
|
WSW
19
|
WSW
20
|
SW
21
|
SW
22
|
SW
22
|
WSW
22
|
WSW
22
|
WSW
21
|
WSW
19
|
WSW
17
|
W
16
|
W
15
|
W
15
|
W
15
|
| Wind gust (mph) |
19
|
22
|
24
|
28
|
31
|
36
|
39
|
40
|
42
|
42
|
43
|
42
|
41
|
38
|
35
|
33
|
31
|
31
|
31
|
32
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
M
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
M
|
G
|
G
|
VG
|
VG
|
| Humidity |
89%
|
87%
|
85%
|
84%
|
83%
|
84%
|
85%
|
86%
|
92%
|
94%
|
96%
|
97%
|
97%
|
97%
|
96%
|
95%
|
92%
|
85%
|
77%
|
75%
|
| UV | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
Monday (30 March 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%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
6°
|
6°
|
6°
|
6°
|
6°
|
5°
|
5°
|
5°
|
5°
|
6°
|
7°
|
7°
|
8°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
8°
|
8°
|
7°
|
7°
|
7°
|
| Feels like temperature (°C) |
2°
|
2°
|
2°
|
2°
|
1°
|
1°
|
1°
|
1°
|
1°
|
2°
|
3°
|
4°
|
4°
|
4°
|
5°
|
5°
|
5°
|
6°
|
6°
|
5°
|
5°
|
5°
|
5°
|
5°
|
| Wind direction and speed (mph) |
W
15
|
W
16
|
W
16
|
W
16
|
W
16
|
W
16
|
W
16
|
WNW
15
|
WNW
15
|
WNW
15
|
WNW
16
|
WNW
17
|
WNW
17
|
WNW
17
|
WNW
17
|
WNW
17
|
WNW
17
|
WNW
15
|
WNW
14
|
WNW
12
|
WNW
10
|
WNW
9
|
WNW
8
|
W
8
|
| Wind gust (mph) |
32
|
31
|
31
|
31
|
30
|
30
|
30
|
29
|
30
|
32
|
32
|
33
|
32
|
31
|
30
|
30
|
29
|
27
|
22
|
19
|
16
|
14
|
13
|
13
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
80%
|
81%
|
82%
|
84%
|
83%
|
84%
|
85%
|
84%
|
83%
|
78%
|
74%
|
71%
|
66%
|
66%
|
65%
|
65%
|
65%
|
65%
|
68%
|
74%
|
78%
|
82%
|
83%
|
84%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
Tuesday (31 March 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%
|
20%
|
40%
|
50%
|
60%
|
60%
|
60%
|
60%
|
70%
|
70%
|
60%
|
60%
|
50%
|
30%
|
30%
|
20%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
8°
|
8°
|
9°
|
9°
|
10°
|
10°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
9°
|
9°
|
8°
|
8°
|
| Feels like temperature (°C) |
5°
|
5°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
7°
|
8°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
9°
|
8°
|
7°
|
7°
|
7°
|
7°
|
| Wind direction and speed (mph) |
W
7
|
W
6
|
W
5
|
WSW
5
|
WSW
4
|
W
5
|
WSW
5
|
W
5
|
W
5
|
W
6
|
W
6
|
W
7
|
W
7
|
W
8
|
W
8
|
W
8
|
W
7
|
WSW
7
|
WSW
7
|
SW
7
|
SW
6
|
SW
5
|
SW
5
|
S
5
|
| Wind gust (mph) |
12
|
12
|
14
|
14
|
14
|
14
|
14
|
13
|
13
|
14
|
15
|
15
|
16
|
16
|
16
|
16
|
15
|
15
|
15
|
14
|
13
|
12
|
12
|
12
|
| Visibility (description) |
VG
|
G
|
G
|
M
|
M
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
M
|
M
|
G
|
G
|
M
|
M
|
M
|
M
|
M
|
M
|
| Humidity |
85%
|
87%
|
90%
|
93%
|
96%
|
98%
|
99%
|
99%
|
100%
|
100%
|
99%
|
99%
|
98%
|
96%
|
94%
|
93%
|
90%
|
88%
|
91%
|
95%
|
96%
|
96%
|
97%
|
97%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Wednesday (1 April 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%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
20%
|
20%
|
20%
|
30%
|
20%
|
20%
|
20%
|
30%
|
30%
|
30%
|
20%
|
| Temperature (°C) |
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
9°
|
9°
|
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
8°
|
7°
|
7°
|
6°
|
| Feels like temperature (°C) |
7°
|
7°
|
7°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
7°
|
7°
|
8°
|
8°
|
8°
|
7°
|
7°
|
7°
|
7°
|
6°
|
5°
|
4°
|
4°
|
| Wind direction and speed (mph) |
S
5
|
SSW
4
|
S
4
|
SSW
4
|
SSW
5
|
SSW
5
|
SW
5
|
SW
5
|
SW
6
|
SW
7
|
WSW
8
|
WSW
9
|
WSW
10
|
WSW
10
|
WSW
11
|
WSW
11
|
WSW
10
|
WSW
10
|
W
9
|
WSW
8
|
W
7
|
W
7
|
WNW
7
|
WNW
6
|
| Wind gust (mph) |
12
|
11
|
11
|
11
|
11
|
11
|
11
|
13
|
14
|
16
|
19
|
20
|
21
|
22
|
22
|
22
|
22
|
21
|
20
|
18
|
18
|
20
|
20
|
19
|
| Visibility (description) |
P
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
M
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
97%
|
97%
|
98%
|
98%
|
97%
|
97%
|
97%
|
97%
|
95%
|
93%
|
90%
|
88%
|
86%
|
84%
|
84%
|
83%
|
84%
|
86%
|
86%
|
88%
|
92%
|
92%
|
92%
|
89%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
Thursday (2 April 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 |
20%
|
20%
|
20%
|
10%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
30%
|
30%
|
40%
|
40%
|
40%
|
40%
|
50%
|
50%
|
60%
|
60%
|
70%
|
70%
|
| Temperature (°C) |
6°
|
5°
|
5°
|
5°
|
4°
|
4°
|
4°
|
4°
|
5°
|
6°
|
7°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
8°
|
8°
|
7°
|
6°
|
6°
|
5°
|
5°
|
| Feels like temperature (°C) |
3°
|
3°
|
3°
|
3°
|
2°
|
2°
|
2°
|
2°
|
3°
|
3°
|
4°
|
5°
|
6°
|
6°
|
7°
|
6°
|
6°
|
6°
|
5°
|
4°
|
3°
|
2°
|
2°
|
1°
|
| Wind direction and speed (mph) |
NW
6
|
W
5
|
W
5
|
S
5
|
SSE
5
|
S
5
|
SSE
5
|
SSE
5
|
SE
5
|
SE
7
|
SE
8
|
SSE
8
|
SSE
9
|
SSE
10
|
S
10
|
S
11
|
SSW
11
|
SSW
11
|
SSW
11
|
SSW
11
|
S
11
|
S
11
|
SSW
12
|
SSW
11
|
| Wind gust (mph) |
18
|
15
|
14
|
13
|
13
|
13
|
14
|
15
|
16
|
17
|
17
|
18
|
20
|
20
|
20
|
20
|
21
|
20
|
20
|
22
|
25
|
24
|
22
|
25
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
88%
|
90%
|
91%
|
91%
|
92%
|
92%
|
93%
|
92%
|
90%
|
85%
|
82%
|
75%
|
71%
|
71%
|
71%
|
68%
|
70%
|
77%
|
80%
|
82%
|
86%
|
88%
|
90%
|
89%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Friday (3 April 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 |
70%
|
60%
|
50%
|
40%
|
30%
|
30%
|
40%
|
50%
|
60%
|
| Temperature (°C) |
5°
|
4°
|
4°
|
3°
|
5°
|
7°
|
7°
|
6°
|
5°
|
| Feels like temperature (°C) |
1°
|
1°
|
0°
|
-1°
|
1°
|
3°
|
3°
|
2°
|
1°
|
| Wind direction and speed (mph) |
SSW
11
|
SSW
11
|
SW
11
|
WSW
10
|
WSW
12
|
WSW
13
|
SW
14
|
SW
14
|
SSW
15
|
| Wind gust (mph) |
23
|
23
|
21
|
24
|
26
|
28
|
30
|
28
|
33
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
M
|
| Humidity |
89%
|
89%
|
91%
|
91%
|
84%
|
70%
|
67%
|
82%
|
89%
|
| UV | - | - | - | 1 | 1 | 3 | 1 | 1 | - |
Saturday (4 April 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
50%
|
50%
|
60%
|
50%
|
60%
|
60%
|
50%
|
| Temperature (°C) |
5°
|
5°
|
5°
|
6°
|
7°
|
7°
|
6°
|
5°
|
| Feels like temperature (°C) |
1°
|
0°
|
0°
|
1°
|
2°
|
3°
|
2°
|
0°
|
| Wind direction and speed (mph) |
SW
16
|
SW
16
|
WSW
17
|
WSW
19
|
WSW
20
|
WSW
19
|
WSW
17
|
SW
16
|
| Wind gust (mph) |
32
|
32
|
36
|
38
|
39
|
38
|
33
|
33
|
| Visibility (description) |
M
|
M
|
M
|
G
|
G
|
G
|
G
|
M
|
| Humidity |
88%
|
89%
|
90%
|
85%
|
77%
|
72%
|
78%
|
87%
|
| UV | - | - | 1 | 1 | 2 | 1 | 1 | - |
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Wales weather forecast
Headline:
Gradually turning more unsettled with wind and rain.
Today:
Showery rain developing after a dry start, with persistent and heavy rain early afternoon, probably becoming more showery by the evening. Becoming windy with coastal gales possible for a time. Maximum temperature 11 °C.
Tonight:
Rain clearing to showers then turning mostly dry by morning. Often windy, though winds easing a little overnight. Staying largely frost-free. Minimum temperature 3 °C.
Monday:
A few light showers are possible but otherwise mostly dry with easing winds. Some sunny spells and although still chilly, feeling more pleasant in lighter winds. Maximum temperature 13 °C.
Outlook for Tuesday to Thursday:
A few light showers are possible, but otherwise early next week looks mainly dry. Cloudy periods are likely but there'll also be sunny spells. Turning warmer but breezy at times.
Updated:
UK long range weather forecast
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