March weather forecast
Grytviken, South Georgia and the South Sandwich Islands

March

Weather in March

March features less severe weather conditions in Grytviken, observing a small drop in temperatures from the previous month. The daylight hours shrink further, leading to reduced evaporation and a subsequent decline in rainfall to 109mm (4.29"). Despite these minor shifts, the city still experiences high levels of humidity at 90%. The snowfall frequency, too, takes a step back, indicating the approaching end of the harsh winters. However, the coastal city continues to experience strong gusts with an average wind speed of 24.1km/h (15mph).

Temperature

With the onset of March, a modest change to a still icy 3°C (37.4°F) from February's 3.1°C (37.6°F) is noted in high-temperature. Grytviken, during March nights, records a temperature marginally cooler than the daytime average, at a still icy 0.3°C (32.5°F).

Humidity

The average relative humidity in March is 90%.

Rainfall

In March, the rain falls for 20.5 days. Throughout March, 109mm (4.29") of precipitation is accumulated. In Grytviken, during the entire year, the rain falls for 168.8 days and collects up to 1190mm (46.85") of precipitation.

Snowfall

Months with snowfall are January through December. The month with the least snowfall is March, when snow falls for 12.7 days and typically aggregates up to 125mm (4.92") of snow.

Sea temperature

The months with the warmest seawater in Grytviken are January through April, with an average sea temperature of 3°C (37.4°F).
Note: In relation to swimming, the extreme cold, danger, and potential fatality of this situation are apparent. Without suitable insulated waterproof clothing, the onset of hypothermia is quick.

Daylight

In March, the average length of the day in Grytviken is 12h and 29min.
On the first day of the month, sunrise is at 05:51 and sunset at 19:24. On the last day of March, sunrise is at 06:49 and sunset at 18:10 -02.

Sunshine

In March, the average sunshine is 4.4h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 1. January through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 1 during March translates into the following guidance:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

How cold is March?
In March, the average high-temperature and low-temperature are 3°C (37.4°F) and 0.3°C (32.5°F) respectively.
What is the average humidity in March?
In Grytviken, the average relative humidity in March is 90%.
How much does it rain in March?
In Grytviken, in March, it is raining for 20.5 days, with typically 109mm (4.29") of accumulated precipitation.
When it does not snow?
March is the month with the least snowfall. Snow falls for 12.7 days and accumulates 125mm (4.92") of snow.
How much does it snow in March?
In March, it is snowing for 12.7 days. Throughout March, 125mm (4.92") of snow is accumulated.
What are the months with the warmest sea water?
January through April, with an average sea temperature of 3°C (37.4°F), are months with the warmest seawater.
How cold is the water in March?
In Grytviken, in March, the average water temperature is 3°C (37.4°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.
What is the average length of the day in March?
The average day length in March is 12h and 29min.
What time are sunrise and sunset in March?
On the first day of March, sunrise is at 05:51 and sunset at 19:24. On the last day of the month, sunrise is at 06:49 and sunset at 18:10 -02.
How long on average sun shines in March?
In Grytviken, the average sunshine duration in March is 4.4h.
What are the months with the highest UV index?
January through December, with an average maximum UV index of 1, are months with the highest UV index.
When is the lowest UV index?
The months with the lowest UV index in Grytviken are January through December, with an average maximum UV index of 1.
How high is the UV index in March in Grytviken?
In Grytviken, the average daily maximum UV index in March is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average high temperature in March: 3°C

The warmest month (with the highest average high temperature) is February (3.1°C).
The month with the lowest average high temperature is August (-1.6°C).

  • Average low temperature in March: 0.3°C

The month with the highest average low temperature is February (1°C).
The coldest month (with the lowest average low temperature) is August (-4.9°C).

Average pressure in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average pressure in March: 999.8mbar

The month with the highest atmospheric pressure is September (1002.1mbar).
The month with the lowest atmospheric pressure is December (992.9mbar).

Average wind speed in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average wind speed in March: 24.1km/h

The windiest month (with the highest average wind speed) is September (25.7km/h).
The calmest month (with the lowest average wind speed) is December (23.5km/h).

Average humidity in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average humidity in March: 90%

The months with the highest relative humidity are January and February (91%).
The months with the lowest relative humidity are July and August (87%).

Average rainfall in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall in March: 109mm

The wettest month (with the highest rainfall) is April (114mm).
The driest month (with the least rainfall) is October (82mm).

Average rainfall days in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall days in March: 20.5 days

The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (7.8 days).

Average snowfall in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average snowfall in March: 125mm

The month with the highest snowfall is August (421mm).
The month with the least snowfall is March (125mm).

Average snowfall days in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average snowfall days in March: 12.7 days

The month with the highest number of snowfall days is August (19 days).
The month with the least snowfall days is February (11.7 days).

Average sea temperature in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average sea temperature in March: 3°C

The best months for swimming (with the highest average sea temperature) are January, February, March and April (3°C).
The coldest months (with the lowest average sea temperature) are August, September and October (0°C).

Average daylight in March /
Average sunshine in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average daylight in March: 12h and 3min

The month with the longest days is December (Average daylight: 17h and 6min).
The month with the shortest days is June (Average daylight: 7h and 24min).

  • Average sunshine in March: 4h and 2min

The month with the most sunshine is October (Average sunshine: 5h and 48min).
The month with the least sunshine is August (Average sunshine: 3h and 0min).

Average sunshine days in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average sunshine days in March: 2.8 days

The months with the most sunshine days are September and November (4 days).
The month with the least sunshine days is January (1.1 days).

Average UV index in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average UV index in March: 1

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 1).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 1).

Average cloud cover in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average cloud cover in March: 71

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is October (Cloud cover 66).

Average visibility in March
Grytviken, South Georgia and the South Sandwich Islands
  • Average visibility in March: 8km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (8km).
The months with the lowest visibility are July, August and September (7km).

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