News
Cold weather to continue
A number of weather warnings are in place across the country for wintry hazards as the cold weather continues into next week.
Read moreCaernarfon (Gwynedd) weather
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Forecast days
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Today. Maximum daytime temperature: 4 degrees Celsius; Minimum nighttime temperature: -2 degrees Celsius. Heavy snow changing to sunny intervals by late morning. Sunrise: 08:20; Sunset: 16:00. UV: Low; Pollution: Low; No pollen data.
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Sunday 11 December. Maximum daytime temperature: 3 degrees Celsius; Minimum nighttime temperature: -2 degrees Celsius. Partly cloudy changing to sunny intervals by late morning. Sunrise: 08:21; Sunset: 16:00. UV: Low; Pollution: Low; No pollen data.
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Monday 12 December. Maximum daytime temperature: 2 degrees Celsius; Minimum nighttime temperature: -2 degrees Celsius. Clear. Sunrise: 08:22; Sunset: 15:59. UV: Low; Pollution: Low; No pollen data.
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Tuesday 13 December. Maximum daytime temperature: 2 degrees Celsius; Minimum nighttime temperature: -1 degrees Celsius. Partly cloudy changing to sunny by late morning. Sunrise: 08:23; Sunset: 15:59. UV: Low; Pollution: Low; No pollen data.
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Wednesday 14 December. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius. Partly cloudy changing to sunny by late morning. Sunrise: 08:24; Sunset: 15:59. UV: Low; No pollen data.
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Thursday 15 December. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 1 degrees Celsius. Partly cloudy changing to sunny intervals by late morning. Sunrise: 08:25; Sunset: 15:59. UV: Low;
Six day forecast for Caernarfon
| 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
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70% | 10% | 50% | 40% | 10% | 80% | 80% | 40% | 10% | 20% | 20% | 40% | 30% | 50% | 20% | 50% | 50% | 50% | 60% | 80% | 10% | 10% | 20% | 10% |
|
|
1°
|
1°
|
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
3°
|
3°
|
4°
|
4°
|
3°
|
3°
|
3°
|
2°
|
2°
|
2°
|
2°
|
1°
|
1°
|
1°
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-2° | -1° | -2° | -1° | -1° | -1° | -1° | -1° | -1° | -1° | 0° | 1° | 1° | 1° | 0° | 1° | 0° | 0° | 0° | 0° | 0° | 0° | 0° | -1° |
|
|
SSE
6
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SSE
6
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S
7
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S
8
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S
7
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WSW
6
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S
7
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WSW
7
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SSW
9
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SSW
7
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WSW
7
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SW
6
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SW
6
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SW
7
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WNW
6
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SSW
6
|
SW
5
|
S
6
|
W
4
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SSW
4
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SSE
3
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SE
3
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E
3
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E
4
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9 | 12 | 10 | 10 | 11 | 9 | 11 | 14 | 12 | 10 | 10 | 10 | 10 | 10 | 10 | 8 | 8 | 8 | 6 | 6 | 5 | 5 | 6 | 7 |
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M | G | M | G | VG | G | G | G | VG | G | G | VG | VG | VG | VG | VG | VG | G | G | G | G | G | P | G |
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Humidity
|
97% | 94% | 96% | 93% | 89% | 94% | 94% | 94% | 93% | 91% | 91% | 90% | 87% | 86% | 92% | 92% | 94% | 95% | 95% | 95% | 95% | 96% | 96% | 96% |
|
UV
|
- | - | - | - | - | - | - | - | - | 1 | 1 | 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
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10% | 20% | <5% | <5% | <5% | <5% | <5% | <5% |
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1°
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0°
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-1°
|
0°
|
3°
|
2°
|
1°
|
0°
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-1° | -3° | -3° | -2° | 1° | 0° | -2° | -3° |
|
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E
4
|
ENE
4
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ESE
4
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E
4
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ESE
4
|
E
5
|
E
4
|
SE
5
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6 | 7 | 6 | 7 | 7 | 8 | 7 | 7 |
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M | P | G | VG | G | VG | VG | G |
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Humidity
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96% | 97% | 94% | 92% | 82% | 89% | 91% | 90% |
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UV
|
- | - | - | 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
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<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
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-1°
|
0°
|
-1°
|
-1°
|
2°
|
2°
|
-1°
|
-1°
|
|
|
-3° | -3° | -4° | -4° | 0° | -1° | -4° | -4° |
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SE
5
|
SE
5
|
SE
6
|
ESE
5
|
SE
4
|
SE
5
|
ESE
6
|
ESE
5
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|
7 | 8 | 9 | 8 | 8 | 9 | 9 | 9 |
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M | G | G | M | G | VG | G | M |
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Humidity
|
92% | 90% | 91% | 92% | 80% | 82% | 88% | 89% |
|
UV
|
- | - | - | 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
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
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-1°
|
-1°
|
-1°
|
-1°
|
2°
|
2°
|
1°
|
2°
|
|
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-5° | -4° | -4° | -4° | -2° | -2° | -4° | -3° |
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ESE
6
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ESE
6
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E
7
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ENE
7
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ENE
11
|
ENE
11
|
ENE
11
|
NE
12
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10 | 11 | 12 | 13 | 19 | 19 | 18 | 20 |
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G | G | G | VG | G | VG | VG | VG |
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Humidity
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88% | 88% | 88% | 87% | 76% | 79% | 80% | 80% |
|
UV
|
- | - | - | 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
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
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2°
|
2°
|
3°
|
3°
|
5°
|
4°
|
3°
|
2°
|
|
|
-2° | -2° | -2° | -1° | 1° | 0° | -1° | -2° |
|
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NE
14
|
NE
14
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NE
13
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NE
11
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NNE
11
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NNE
12
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NNE
13
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NNE
12
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23 | 23 | 23 | 19 | 20 | 21 | 21 | 20 |
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VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
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80% | 80% | 77% | 77% | 67% | 71% | 75% | 76% |
|
UV
|
- | - | - | 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
|
<5% | <5% | <5% | 10% | 10% | <5% | 10% | <5% |
|
|
1°
|
2°
|
3°
|
3°
|
4°
|
3°
|
3°
|
3°
|
|
|
-3° | -3° | -1° | 0° | 0° | 0° | -1° | -1° |
|
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NNE
13
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N
12
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NNE
11
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NNE
10
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NNW
11
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NNW
10
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WNW
9
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WNW
10
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20 | 20 | 18 | 16 | 18 | 17 | 16 | 17 |
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VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
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76% | 73% | 71% | 72% | 69% | 73% | 77% | 76% |
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UV
|
- | - | - | 1 | 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.
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 (Medium) | 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.
Caernarfon weather map
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Wales weather forecast
Headline:
Cold with wintry showers in places.
This Evening and Tonight:
Wintry showers continuing in northern and western areas, especially around the coasts. Snow is likely inland and a slight covering is likely in places. Soon turning frosty after dark with icy stretches forming in areas that see the showers. Minimum temperature -6 °C.
Saturday:
Wintry showers continuing in coastal areas of Wales, these locally heavy. Mostly dry in the east with fog and low cloud only slowly lifting to give some sunshine. Staying cold. Maximum temperature 5 °C.
Outlook for Sunday to Tuesday:
Staying cold and mostly dry but isolated wintry flurries around coasts. Widespread and sharp frosts, with patchy freezing fog and icy surfaces. Generally light winds but turning windier by Tuesday.
Updated:
UK long range weather forecast
On Wednesday sleet or snow showers likely to continue in parts of the northeast, with the south possibly increasing in cloud cover. Strong winds possible in the south which would make it feel bitterly cold in places. Conditions will likely stay similar further into the period, with wintry showers for many coastal regions. Often dry and cold inland with widespread sharp frosts and patchy freezing fog. A continuation of this pattern is likely for much of this period but with a chance of more unsettled weather spreading from the southwest later. This would see spells of rain, especially in the south, but also the likelihood of snow during the transition. Feeling cold or very cold with temperatures mainly below average, perhaps increasing to nearer average later, especially in the south.
Updated:
General themes remain uncertain for the rest of the period. Conditions may be widely changeable, with some spells of rain, and at times snow. These expected to be accompanied by strong winds, initially focused in southern parts, but affecting all areas at times. Colder and more settled conditions with occasional wintry showers could continue, particularly in the north. Temperatures gradually returning closer to average towards the end of December and start of January.
Updated:
Nearest forecasts
- Menai Strait 1.4 miles
- Greenwood Forest Park (Y Felinheli) 4.5 miles
- Dinas Dinlle (Morfa Dinlle) (Beach) 4.6 miles
- Llanddwyn (Newborough) 4.7 miles
- Plas Newydd (Anglesey) 4.9 miles
- Penygroes 5.9 miles
- Llanberis Youth Hostel 6.1 miles
- Llanberis 6.2 miles
- Electric Mountain Llanberis 6.4 miles
- Llanfairpwll 6.5 miles