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St. Helier Weather Forecast

Temperature, wind, rain and more for St. Helier

Dorset, United Kingdom

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 16
Dec		06:00

W
W

 19 / 35 mph 51 / 45°F 88% 1005 mb
Low level cloud: 15%
Mid level cloud: 46%
High level cloud: 99%
Most Significant Cloud Type: medium
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

 18 / 30 mph 51 / 45°F 81% 1009 mb
Low level cloud: 46%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

 15 / 25 mph 51 / 46°F 80% 1011 mb
Low level cloud: 70%
Mid level cloud: 100%
High level cloud: 9%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 17 / 27 mph 51 / 45°F 77% 1013 mb
Low level cloud: 94%
Mid level cloud: 40%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 15 / 24 mph 51 / 46°F 74% 1015 mb
Low level cloud: 70%
Mid level cloud: 41%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 11 / 17 mph 51 / 47°F 68% 1017 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 17
Dec		00:00

NNW
NNW

 6 / 11 mph 50 / 47°F 69% 1018 mb
Low level cloud: 11%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 6 / 10 mph 49 / 47°F 70% 1018 mb
Low level cloud: 17%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 10 / 17 mph 49 / 44°F 69% 1019 mb
Low level cloud: 8%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 15 / 22 mph 49 / 44°F 74% 1020 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 51%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 20 / 26 mph 50 / 44°F 74% 1019 mb
Low level cloud: 0%
Mid level cloud: 55%
High level cloud: 100%
Most Significant Cloud Type: medium
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 24 / 36 mph 50 / 43°F 76% 1017 mb
Low level cloud: 18%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSW
SSW

 26 / 41 mph 50 / 43°F 81% 1017 mb
Low level cloud: 43%
Mid level cloud: 74%
High level cloud: 100%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 29 / 49 mph 49 / 41°F 84% 1016 mb
Low level cloud: 99%
Mid level cloud: 84%
High level cloud: 81%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In

Other Locations Near to St. Helier

The 7 day weather forecast summary for St. Helier:

The forecast for St. Helier in the coming week is predicting the average daytime maximum temperature will be around 10°C, with a high for the week of 14°C expected on the afternoon of Thursday 18th. The average minimum temperature will be 9°C, dipping to its lowest on the afternoon of Monday 22nd at 7°C. The coming week will have mixed overhead conditions with some days dry and some seeing a significant amount of rain. It looks like Thursday 22nd will have the most precipitation with an accumulation of around 12.0mm. On the whole winds are likely to be strong. The strongest wind will be experienced on Thursday afternoon, coming from a southerly direction, and reaching around 38mph.

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