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Read moreGrib Nantlle (Nantlle Ridge) Y Garn (Gwynedd) weather
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Forecast days
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Today. Maximum daytime temperature: 8 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius. Heavy rain. Sunrise: 06:20; Sunset: 18:29. UV: Low; Pollution: Low; No pollen data.Today. Maximum daytime temperature: 8 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius. Heavy rain. Sunrise: 06:20; Sunset: 18:29. UV: Low; Pollution: Low; No pollen data.
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Tuesday 21 March. Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Heavy rain changing to fog by late morning. Sunrise: 06:18; Sunset: 18:31. UV: Low; Pollution: Low; No pollen data.Tuesday 21 March. Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Heavy rain changing to fog by late morning. Sunrise: 06:18; Sunset: 18:31. UV: Low; Pollution: Low; No pollen data.
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Wednesday 22 March. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Partly cloudy changing to light showers by late morning. Sunrise: 06:15; Sunset: 18:33. UV: Moderate; Pollution: Low; No pollen data.Wednesday 22 March. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Partly cloudy changing to light showers by late morning. Sunrise: 06:15; Sunset: 18:33. UV: Moderate; Pollution: Low; No pollen data.
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Thursday 23 March. Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Light showers. Sunrise: 06:13; Sunset: 18:35. UV: Low; Pollution: Low; No pollen data.Thursday 23 March. Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Light showers. Sunrise: 06:13; Sunset: 18:35. UV: Low; Pollution: Low; No pollen data.
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Friday 24 March. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Heavy showers. Sunrise: 06:11; Sunset: 18:36. UV: Low; Pollution: Low; No pollen data.Friday 24 March. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Heavy showers. Sunrise: 06:11; Sunset: 18:36. UV: Low; Pollution: Low; No pollen data.
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Saturday 25 March. Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius. Light rain changing to sunny intervals by early evening. Sunrise: 06:08; Sunset: 18:38. UV: Moderate;Saturday 25 March. Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius. Light rain changing to sunny intervals by early evening. Sunrise: 06:08; Sunset: 18:38. UV: Moderate;
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Sunday 26 March. Maximum daytime temperature: 4 degrees Celsius; Minimum nighttime temperature: -3 degrees Celsius. Overcast changing to sunny by early evening. Sunrise: 07:06; Sunset: 19:40. UV: Moderate;Sunday 26 March. Maximum daytime temperature: 4 degrees Celsius; Minimum nighttime temperature: -3 degrees Celsius. Overcast changing to sunny by early evening. Sunrise: 07:06; Sunset: 19:40. UV: Moderate;
Seven day forecast for Grib Nantlle (Nantlle Ridge) Y Garn
| Time | 23:00 |
|---|---|
| Weather symbol |
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Chance of precipitation
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≥95% |
|
|
6°
|
|
|
0° |
|
|
S
35
|
|
|
43 |
|
|
VP |
|
Humidity
|
100% |
|
UV
|
- |
| 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 symbol |
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Chance of precipitation
|
≥95% | ≥95% | 60% | 30% | 80% | 90% | 50% | 30% | 90% | 30% | 20% | 20% | 10% | 10% | 10% | 10% | 20% | 40% | 90% | 90% | ≥95% | ≥95% | ≥95% | ≥95% |
|
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
5°
|
5°
|
5°
|
6°
|
5°
|
5°
|
6°
|
6°
|
6°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
6°
|
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|
0° | 0° | 0° | 0° | -1° | -1° | -2° | -2° | -1° | 0° | 0° | 0° | 0° | 0° | -1° | -1° | -1° | -1° | -1° | -2° | -2° | -2° | -2° | -1° |
|
|
S
37
|
SSW
39
|
SSW
36
|
SSW
33
|
SSW
35
|
SSW
40
|
SSW
42
|
SSW
42
|
SW
34
|
SW
31
|
SW
29
|
SW
28
|
SW
26
|
SW
28
|
SW
32
|
SW
32
|
SSW
33
|
SSW
35
|
SSW
37
|
SSW
39
|
SSW
43
|
SSW
45
|
SSW
46
|
SSW
45
|
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|
47 | 50 | 46 | 42 | 46 | 51 | 54 | 54 | 45 | 43 | 40 | 39 | 38 | 40 | 45 | 46 | 47 | 49 | 52 | 55 | 60 | 64 | 65 | 64 |
|
|
VP | VP | VP | VP | VP | VP | VP | VP | VP | VP | VP | VP | G | G | G | M | VP | VP | P | VP | VP | VP | VP | VP |
|
Humidity
|
100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 100% | 100% | 99% | 98% | 98% | 98% | 99% | 99% | 99% | 99% | 99% | 99% | 99% | 99% | 99% |
|
UV
|
- | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
≥95% | 80% | 40% | 40% | 60% | 60% | 70% | 80% |
|
|
6°
|
5°
|
2°
|
4°
|
4°
|
5°
|
4°
|
4°
|
|
|
-1° | -1° | -4° | -3° | -2° | -1° | -3° | -3° |
|
|
SSW
43
|
SW
37
|
SW
27
|
SW
27
|
SSW
30
|
SSW
31
|
SSW
33
|
SW
27
|
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|
62 | 55 | 40 | 41 | 47 | 49 | 54 | 46 |
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VP | P | E | VG | VG | VG | M | M |
|
Humidity
|
99% | 98% | 92% | 84% | 86% | 89% | 97% | 97% |
|
UV
|
- | - | - | 1 | 3 | 1 | 1 | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
70% | 40% | 40% | 60% | 60% | 60% | 60% | 60% |
|
|
3°
|
3°
|
3°
|
4°
|
5°
|
5°
|
4°
|
4°
|
|
|
-4° | -3° | -3° | -2° | -1° | 0° | -1° | -2° |
|
|
SW
26
|
SW
22
|
SSW
22
|
SSW
24
|
SW
25
|
SW
23
|
SSW
22
|
SSW
21
|
|
|
43 | 39 | 39 | 44 | 47 | 44 | 40 | 38 |
|
|
G | G | M | M | M | G | G | M |
|
Humidity
|
96% | 97% | 97% | 97% | 95% | 94% | 96% | 98% |
|
UV
|
- | - | - | 1 | 2 | 1 | 1 | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
70% | 70% | 60% | 70% | 70% | 70% | 60% | 60% |
|
|
3°
|
3°
|
3°
|
4°
|
5°
|
5°
|
4°
|
3°
|
|
|
-3° | -3° | -3° | -2° | -1° | -1° | -2° | -3° |
|
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SW
22
|
SW
22
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SW
23
|
SW
23
|
SW
26
|
SW
26
|
SW
26
|
SW
24
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42 | 43 | 43 | 43 | 49 | 50 | 47 | 43 |
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G | G | G | M | G | G | G | G |
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Humidity
|
98% | 98% | 97% | 96% | 90% | 92% | 95% | 96% |
|
UV
|
- | - | - | 1 | 2 | 1 | 1 | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
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|
|
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Chance of precipitation
|
60% | 50% | 60% | 50% | 40% | 40% | 10% | 10% |
|
|
3°
|
3°
|
2°
|
3°
|
5°
|
5°
|
4°
|
2°
|
|
|
-3° | -3° | -3° | -2° | 0° | 1° | -1° | -1° |
|
|
SW
22
|
WSW
19
|
W
19
|
W
19
|
WSW
18
|
WSW
17
|
WSW
14
|
WSW
9
|
|
|
40 | 34 | 34 | 36 | 35 | 33 | 24 | 15 |
|
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M | M | M | M | G | G | G | G |
|
Humidity
|
96% | 97% | 96% | 95% | 83% | 74% | 92% | 96% |
|
UV
|
- | - | - | 1 | 3 | 2 | 1 | - |
| Time | 00:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
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|
|
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Chance of precipitation
|
10% | 20% | 20% | 10% | 10% | 10% | 10% | 10% |
|
|
1°
|
0°
|
1°
|
2°
|
4°
|
3°
|
2°
|
0°
|
|
|
-2° | -4° | -3° | -2° | 0° | -1° | -2° | -4° |
|
|
SE
8
|
WNW
10
|
WNW
9
|
NNW
11
|
NNW
12
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NNW
12
|
NNW
10
|
NW
9
|
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14 | 16 | 15 | 22 | 26 | 24 | 19 | 16 |
|
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G | G | M | G | G | VG | VG | VG |
|
Humidity
|
96% | 97% | 96% | 90% | 77% | 73% | 75% | 87% |
|
UV
|
- | - | - | 1 | 3 | 1 | 1 | - |
Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail and drizzle) will fall from the sky at a certain time.
This number shows the air temperature for the time period. You can see the temperature in Celsius or Fahrenheit by using the dropdown menu.
Feels like temperature considers other factors, such as wind speed and humidity. This gives you a better idea of how the temperature will actually feel at the time.
Wind gust shows the highest wind speed that you should encounter at that time, as winds peak and lull.
Strong winds are shown in bold for speeds of 29 mph or more.
The arrow shows the direction the wind is blowing. The letters show the direction the wind is blowing from (on a standard 16-point compass).
The number represents the average wind speed expected at that time.
The arrow shows the direction of the wind (up is north). The blue behind the arrow represents the sea, and green is the land. If the arrow points from green to blue, the wind will be blowing from land to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks, because these winds can blow you out to sea. Read more about how wind will affect you at the beach.
Visibility measures the distance at which an object can be clearly seen.
| VP (Very Poor) | Less than 1 km |
| P (Poor) | 1.1 km to 4 km |
| M (Moderate) | 4.1 km to 10 km |
| G (Good) | 10.1 km to 20 km |
| VG (Very Good) | 20.1 km to 40 km |
| E (Excellent) | Greater than 40 km |
Humidity is the amount of water vapor in the air. If there is a lot of water vapour, the humidity will be high. The higher the percentage of humidity, the wetter it will feel outside.
UV exposure index and the protection required to help keep you safe:
No risk of UV - It’s safe to stay outside. Low - You can safely stay outside. Consider sunscreen in direct sunlight. Moderate - Take care during midday hours and do not spend too much time in the sun unprotected. Sunscreen advised. High - Seek shade during midday hours, cover up and wear sunscreen. Very high - Spend time in the shade between 11am and 3pm. Shirt, sunscreen and hat are essential. Extreme - Avoid being outside during midday hours. Shirt, sunscreen and hat essential.
This is the average height of the waves, 1-2 miles out to sea. The height of the waves can vary. The individual waves out to sea or at the beach can be higher than this number. If you are close to the water, keep an eye on the waves to stop you or your belongings being swept away.
Read more about calculating the expected height of the waves at the beach.
This is the average number of seconds between one wave and the next, 1-2 miles out to sea. A long wave period (more than 10 seconds) means the waves at the beach may be more powerful. Lifeguards can give you advice on waves if you’re planning to go into the water.
Read more about the period of waves.
The arrow shows the average direction that the waves are going 1-2 miles out to sea. It indicates how sheltered the beach will be from these waves. If the arrow points towards land, most of the waves’ power will reach the beach. If the arrow is parallel or pointing away from land, the height of the waves on the beach is likely to be lower than the height of waves offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.
Grib Nantlle (Nantlle Ridge) Y Garn weather map
View the weather with our interactive map
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WARNING
Flood alerts in force
for Wales
Flood alerts in force
for Wales
Wales weather forecast
Headline:
Cloudy with outbreaks of rain and drizzle.
This Evening and Tonight:
Remaining cloudy with rain clearing northeastwards overnight, becoming drier during the second half of the night, although scattered showers quickly developing from the west. Breezy, particularly along the coasts and over high ground. Minimum temperature 9 °C.
Tuesday:
A day of sunny spells and scattered showers, before cloud thickens during the afternoon, and rain arrives from the west later. Breezy, particularly along the coasts. Winds strengthening further later. Maximum temperature 14 °C.
Outlook for Wednesday to Friday:
Any early rain clearing to leave sunshine and blustery showers on Wednesday. Showers continue on Thursday and Friday, turning heavy and thundery at times. Often windy, and temperatures near average.
Updated:
UK long range weather forecast
Saturday is likely to be unsettled with showers for many, these perhaps turning wintry, especially over high ground in the north, but becoming drier from the west through the day. Strong winds in the south and east at first, tending to ease with time. Sunday will likely bring further rain and perhaps windy conditions to the south, whilst northern areas see brighter skies and wintry showers. After a mostly dry start to next week with some frost, further periods of strong winds and rain are expected with perhaps a trend for the wettest weather to be in the south. Temperatures likely close to average in the south, but rather cold in the north, with a risk of wintry conditions here.
Updated:
To start the period, a continuation of unsettled conditions is the most likely. Moving further into April, a chance of more settled weather is predicted, with drier conditions more probable. Any wetter conditions are more likely in the far south. There is a chance that temperatures may trend cooler than average through this period.
Updated:
