MOUNTAIN WEATHER

Weather data for hill walking and climbing

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Mountain Weather

Snowdonia Weather Forecast

Base: 300m (984ft); Upper: 1085m (3560ft)

United Kingdom

DATE BASE LEVEL @ 300m UPPER LEVEL @ 1085m MORE ELEMENTS
Day Local Time Wind Dir Wind Speed Icon Temp RH Vis Wind Dir Wind Speed Icon Temp Precip Freeze Level Cloud Amount Pressure
Units =>degmph °F%milesdegmph °FInm%mb
Mon 29
Apr
00:00

199°

1345935

214°

33340.112581001008
 03:00

198°

1543925

211°

35350.11282881007
 06:00

180°

1343906

195°

38350.01314931006
 09:00

178°

1745906

188°

48350.013181001006
 12:00

176°

1847934

187°

51370.215451001005
 15:00

200°

1448934

209°

40370.215581001006
 18:00

197°

1447885

210°

37370.01459481007
 21:00

177°

945926

200°

28360.01433621009
The 7 day weather forecast summary for Snowdonia, United Kingdom:

Taking a look at the forecast over the coming week and the average daytime maximum will be around 10°C, with a high of 12°C expected on Thursday afternoon. The average minimum temperature for the week ahead will be around 6°C, dipping to its lowest on Sunday morning at 3°C. Monday is expected to see the most precipitation with around 14mm, or about 0.6inches anticipated. The strongest wind will be felt on Tuesday afternoon, coming from the southeast, and reaching around 20mph, that's about 32km/h.

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure