Grytviken
South Georgia and the South Sandwich Islands
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Grytviken, South Georgia and the South Sandwich Islands

The last month of the winter, August, is also a wintry month in Grytviken, South Georgia and the South Sandwich Islands, with average temperature ranging between max 1.5°C (34.7°F) and min -4.9°C (23.2°F).

Temperature

In Grytviken, the average high-temperature is relatively the same as in July - a still cold 1.5°C (34.7°F). In August, in Grytviken, South Georgia and the South Sandwich Islands, the average low-temperature is -4.9°C (23.2°F).

Rainfall

The wettest months are July and August, with an average 149mm (5.9") of rainfall.

Sea temperature

August through October, with an average sea temperature of 0°C (32°F), are months with the coldest seawater.
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

In August, the average length of the day in Grytviken is 9.6h.

Sunshine

The average sunshine in Grytviken is 2.4h.

UV index

The average daily maximum UV index in August is 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 1 in August transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in August in Grytviken?

In Grytviken, in August, the average high-temperature is 1.5°C (34.7°F), and the average low-temperature is -4.9°C (23.2°F).

How many days does it rain in August in Grytviken?

In Grytviken, during August, the rain falls for 15 days and regularly aggregates up to 149mm (5.9") of precipitation.

What is the rainiest month in Grytviken?

Months with the most rainfall in Grytviken, South Georgia and the South Sandwich Islands, are July and August, with an average 149mm (5.9") of precipitation.

When is the sea coldest in Grytviken?

Through and October, with an average sea temperature of 0°C (32°F).

How cold is the water in August in Grytviken?

In August, the average sea temperature in Grytviken, South Georgia and the South Sandwich Islands, is 0°C (32°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the average length of the day in August in Grytviken?

The average length of the day in August in Grytviken, South Georgia and the South Sandwich Islands, is 9.6h.

How many hours of sunshine does Grytviken have in August?

In Grytviken, the average sunshine in August is 2.4h.

How high is the UV index in August in Grytviken?

The average daily maximum UV index in August in Grytviken, South Georgia and the South Sandwich Islands, is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in August - Grytviken, South Georgia and the South Sandwich Islands
  • Average high temperature in August: 1.5°C

The warmest month (with the highest average high temperature) is February (9.1°C).
The month with the lowest average high temperature is June (0.9°C).

  • Average low temperature in August: -4.9°C

The month with the highest average low temperature is February (1.7°C).
The coldest month (with the lowest average low temperature) is August (-4.9°C).

Average rainfall in August - Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall in August: 149mm

Wettest months (with the highest rainfall) are July and August (149mm).
The driest month (with the lowest rainfall) is October (80mm).

Average rainfall days in August - Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is April (19 days).
The month with the lowest number of rainy days is August (15 days).

Average sea temperature in August - Grytviken, South Georgia and the South Sandwich Islands
  • Average sea temperature in August: 0°C

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

Average daylight in August / Average sunshine in August - Grytviken, South Georgia and the South Sandwich Islands
  • Average daylight in August: 9.6h

The month with the longest days is December (Average daylight: 17.1h).
The month with shortest days is June (Average daylight: 7.4h).

  • Average sunshine in August: 2.4h

The month with most sunshine is November (Average sunshine: 5.8h).
The month with least sunshine is June (Average sunshine: 0.4h).

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

The month with the highest UV index is December (UV index 8).
Months with the lowest UV index are June and July (UV index 0).