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Grytviken Weather Forecast

Temperature, wind, rain and more for Grytviken

South Georgia And South Sandwich Islands

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 17
Sep		19:00

SW
SW

 11 / 17 mph 25 / 15°F 82% 992 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
22:00

SW
SW

 10 / 17 mph 25 / 15°F 83% 993 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 13%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 18
Sep		01:00

SW
SW

 9 / 19 mph 24 / 14°F 77% 993 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 33%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WSW
WSW

 9 / 19 mph 22 / 12°F 72% 993 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

W
W

 9 / 19 mph 22 / 12°F 83% 993 mb
Low level cloud: 1%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

 12 / 22 mph 26 / 15°F 81% 993 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 22%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

 9 / 13 mph 28 / 20°F 80% 994 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 39%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

 11 / 17 mph 29 / 19°F 93% 992 mb
Low level cloud: 31%
Mid level cloud: 24%
High level cloud: 2%
Most Significant Cloud Type: low
39%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 11 / 18 mph 27 / 17°F 86% 993 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 4%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 11 / 22 mph 25 / 14°F 86% 992 mb
Low level cloud: 1%
Mid level cloud: 19%
High level cloud: 100%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Grytviken:

Over the next 7 days the Grytviken forecast suggests the average daytime maximum temperature will be around -2°C, with a high for the week of 2°C expected on the morning of Wednesday 17th. The average minimum temperature will be -6°C, dipping to its lowest on the morning of Wednesday 24th at -9°C. Expect the week ahead to have some days seeing a little precipitation and some days with snow. Predictions are Wednesday 24th will have the most precipitation with an accumulation of around 16.0mm. 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