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

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

October, the same as September, is a wintry spring month in Grytviken, South Georgia and the South Sandwich Islands, with average temperature fluctuating between -1.8°C (28.8°F) and 5.4°C (41.7°F).

Temperature

In October, the average high-temperature is essentially the same as in September - a still wintry 5.4°C (41.7°F). In October, the average low-temperature is -1.8°C (28.8°F).

Rainfall

October is the month with the least rainfall. Rain falls for 18 days and accumulates 80mm (3.1") of precipitation.

Sea temperature

August through October, with an average sea temperature of 0°C (32°F), are months with the coldest seawater in Grytviken, South Georgia and the South Sandwich Islands. For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

The average length of the day in October is 13.9h.

Sunshine

In Grytviken, the average sunshine in October is 5.5h.

UV index

In Grytviken, South Georgia and the South Sandwich Islands, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
In October, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in October in Grytviken?

In Grytviken, in October, the average high-temperature is 5.4°C (41.7°F), and the average low-temperature is -1.8°C (28.8°F).

How much does it rain in Grytviken in October?

In Grytviken, South Georgia and the South Sandwich Islands, during October, the rain falls for 18 days and regularly aggregates up to 80mm (3.1") of precipitation.

What is the driest month in Grytviken?

The month with the least rainfall is October when the rain falls for 18 days and typically collects 80mm (3.1") of precipitation.

What months are the sea coldest in Grytviken?

Through and October, with an average sea temperature of 0°C (32°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the water temperature in October in Grytviken?

In Grytviken, South Georgia and the South Sandwich Islands, in October, the average water temperature is 0°C (32°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

How many hours of daylight does Grytviken have in October?

In October, the average length of the day is 13.9h.

How many hours of sunshine does Grytviken have in October?

In Grytviken, the average sunshine in October is 5.5h.

How high is the UV index in October in Grytviken?

In October, the average daily maximum UV index in Grytviken is 5. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.
Average temperature in October - Grytviken, South Georgia and the South Sandwich Islands
  • Average high temperature in October: 5.4°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 October: -1.8°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 October - Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall in October: 80mm

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 October - Grytviken, South Georgia and the South Sandwich Islands
  • Average rainfall days in October: 18 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 October - Grytviken, South Georgia and the South Sandwich Islands
  • Average sea temperature in October: 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 October / Average sunshine in October - Grytviken, South Georgia and the South Sandwich Islands
  • Average daylight in October: 13.9h

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 October: 5.5h

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 October - Grytviken, South Georgia and the South Sandwich Islands
  • Average UV index in October: 5

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).