High for unsettled conditions through the coming days but lower regarding timing of rain and cloud details.
Cloudy with outbreaks of occasionally heavy rain and extensive hill fog. Southwesterly gales slowly easing.
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.
Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
Heavy and persistent rain can lead to drenched clothing and footwear with waterproofs often becoming soaked through, especially if accompanied by strong winds. This can lead to significant loss of body heat and an increased likelihood of hypothermia. Terrain may turn increasingly boggy underfoot while streams can flood and become impassable. There may also be a risk of flooding in valleys or glens. If there is snow cover, a heightened avalanche hazard is possible and avalanche reports should be consulted where available.
A bright day with sunny spells and occasionally heavy, blustery showers
|Chance of precipitation|
|900m||SW 28 34||W 26 32||W 25 30||W 25 31||W 25 31||W 24 30||W 20 25||W 22 26|
|600m||SW 20 25||W 19 24||W 16 21||W 18 24||W 19 26||W 18 25||W 15 19||W 14 17|
|300m||SW 11 21||W 10 20||W 8 18||W 11 22||W 12 24||W 11 23||W 8 17||W 6 13|
|Valley||SW 11 21||W 11 20||W 8 18||SW 11 23||W 12 24||W 11 24||W 9 18||W 7 14|
Cloud, occasionally heavy rain and hill fog clearing gradually clearing through the early hours with clear spells developing. Remaining cloud in the east soon clearing to leave a bright and dry morning with some good spells of sunshine. A few showers are likely through the afternoon but many places will remain dry. Any showers die out through the evening with some long clear spells.
Around 25% at first in the east with periods above about 600m, otherwise around 75% with occasional cloud above 750m.
Several kilometres in rain and perhaps in showers, otherwise very good
Gusts around 45mph over ridges and summits, especially through the morning and near showers, with lowering temperatures making it feel rather cold on the higher summits. Valley temperatures rising to around 19 Celsius by day.
No recent ground conditions report available. For archived reports see - http://www.snowdonia.gov.wales/visiting/walking/ground-conditions
Cloud, especially across western hills, increasing through the early hours with patchy drizzle possible. Then a bright start in the east but thickening cloud brings outbreaks of rain and drizzle, most persistent across western hills. Some drier and brighter interludes are possible in the east during the afternoon.
Westerly 15-20mph backing southwesterly 25mph, with gusts around 45mph, by early afternoon.
Around 25% in the west at first with periods of cloud above 600m falling to near zero with periods or persistent cloud above 450m and patches below. Eastern hills see chances nearer 60% at first with occasional or periods of cloud above 750m falling to 25% with cloud lowering to 600m at times.
Good or very good, especially in the east at first, becoming several kilometres in rain and drizzle