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Caernarfon Weather Forecast

Temperature, wind, rain and more for Caernarfon

Gwynedd, United Kingdom

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 30
Oct
12:00

S
S

13 / 20 mph 58 / 56°F 95% 1014 mb
Low level cloud: 78%
Mid level cloud: 16%
High level cloud: 32%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

12 / 18 mph 60 / 60°F 94% 1014 mb
Low level cloud: 79%
Mid level cloud: 7%
High level cloud: 38%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

13 / 22 mph 58 / 56°F 95% 1013 mb
Low level cloud: 73%
Mid level cloud: 4%
High level cloud: 7%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

14 / 27 mph 56 / 53°F 96% 1013 mb
Low level cloud: 79%
Mid level cloud: 15%
High level cloud: 32%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 31
Oct
00:00

SSE
SSE

14 / 19 mph 60 / 60°F 96% 1013 mb
Low level cloud: 61%
Mid level cloud: 10%
High level cloud: 41%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

15 / 24 mph 58 / 55°F 95% 1012 mb
Low level cloud: 71%
Mid level cloud: 8%
High level cloud: 46%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

15 / 28 mph 57 / 53°F 95% 1011 mb
Low level cloud: 56%
Mid level cloud: 20%
High level cloud: 67%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

17 / 26 mph 60 / 60°F 90% 1010 mb
Low level cloud: 3%
Mid level cloud: 45%
High level cloud: 84%
Most Significant Cloud Type: medium
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

18 / 28 mph 64 / 64°F 79% 1009 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 62%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

17 / 23 mph 66 / 65°F 80% 1008 mb
Low level cloud: 19%
Mid level cloud: 15%
High level cloud: 34%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

18 / 23 mph 63 / 64°F 91% 1008 mb
Low level cloud: 90%
Mid level cloud: 45%
High level cloud: 43%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

16 / 19 mph 61 / 61°F 96% 1009 mb
Low level cloud: 70%
Mid level cloud: 44%
High level cloud: 20%
Most Significant Cloud Type: low
87%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
The 7 day weather forecast summary for Caernarfon:

Over the next 7 days the Caernarfon forecast suggests the average daytime maximum temperature will be around 13°C, with a high for the week of 19°C expected on the afternoon of Friday 31st. The mean minimum temperature will be 10°C, dipping to its lowest on the morning of Thursday 6th at 6°C. The week will have some days seeing a little precipitation and some days with rain. The indicators are that Tuesday 6th will have the most precipitation with an accumulation of around 11.0mm. On the whole winds are likely to be moderate.

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