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MARINE WEATHER

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Marine Weather

Marine weather for Swansea

Lat: 51.61666, Lon: -3.95000

United Kingdom, Global Ports

DATE WIND WAVES SWELL WEATHER TEMPERATURE  
Date Local Time Dir Speed Gust Hsig Ht. Dir Height Period Icon Air Feels Like Cloud Precip RH Pressure Vis
Units =>degktsktsmdegmsecs °F°F%In%mbmiles
Fri 22
Mar
09:00

215°

12160.9

230°

0.77.7494400.008810276
 12:00

228°

12151.0

230°

0.810.9504600.008610276
 15:00

244°

12151.0

230°

0.810.7514600.008710276
 18:00

241°

11131.0

230°

0.810.4504610.008910266
 21:00

244°

11141.0

230°

0.810.24945730.009310286
Sat 23
Mar
00:00

319°

10110.9

230°

0.86.04641630.019410293
 03:00

10151.0

230°

0.910.14439720.018610303
 06:00

29°

11140.9

230°

0.911.0443850.018510316
 09:00

60°

11140.0N/A0.0N/A464000.007510336
 12:00

73°

10110.0N/A0.0N/A484480.006810336
 15:00

85°

9100.1N/A0.0N/A4946680.017110333
 18:00

67°

890.1N/A0.0N/A4845430.028110333
 21:00

52°

8110.0N/A0.0N/A4643460.018210353
The 7 day weather forecast summary for Swansea, United Kingdom, Global Ports:

Taking a look at the forecast over the coming week and the average daytime maximum will be around 12°C, with a high of 16°C expected on Friday morning. The average minimum temperature for the week ahead will be around 6°C, dipping to its lowest on Monday morning at 4°C. Saturday is expected to see the most precipitation with around 2mm, or about 0.1inches anticipated. The strongest wind will be felt on Thursday morning, coming from the east, and reaching around 17mph, that's about 28km/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