Longyearbyen
Svalbard and Jan Mayen
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Longyearbyen, Svalbard and Jan Mayen

The frozen Arctic Blue Sea overlooking the snow-covered mountains in the background, on a sunny winter morning, in Longyearbyen, Svalbard and Jan Mayen
The frozen Arctic Blue Sea overlooking the snow-covered mountains in the background, on a sunny winter morning, in Longyearbyen, Svalbard and Jan Mayen
October, like September, is another subzero cold autumn month in Longyearbyen, Svalbard and Jan Mayen, with average temperature varying between -9°C (15.8°F) and -4°C (24.8°F).

Temperature

In October, the average high-temperature decreases, from a wintry 1°C (33.8°F) in September, to a freezing cold -4°C (24.8°F). In Longyearbyen, the average low-temperature is -9°C (15.8°F).

Rainfall

In October, in Longyearbyen, the rain falls for 5 days. Throughout October, 19mm (0.7") of precipitation is accumulated. Throughout the year, there are 86 rainfall days, and 271mm (10.7") of precipitation is accumulated.

Snowfall

January through December are months with snowfall in Longyearbyen.

Sea temperature

In October, the average sea temperature is 4°C (39.2°F).
Note: 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.

Daylight

The average length of the day in October is 5.6h.

Sunshine

In October, the average sunshine is 0.4h.

UV index

January through March, October through December, with an average maximum UV index of 0, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 0 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in October in Longyearbyen?

In October, in Longyearbyen, the average high-temperature is -4°C (24.8°F), and the average low-temperature is -9°C (15.8°F).

How much does it rain in Longyearbyen in October?

In Longyearbyen, in October, it is raining for 5 days, with typically 19mm (0.7") of accumulated precipitation.

How many days does it snow in October in Longyearbyen?

In Longyearbyen, during October, snow falls for 21 days.

What is the water temperature in October in Longyearbyen?

In Longyearbyen, Svalbard and Jan Mayen, the average seawater temperature in October is 4°C (39.2°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.

How many hours of daylight does Longyearbyen have in October?

In October, the average length of the day is 5.6h.

How long on average sun shines in October in Longyearbyen?

In Longyearbyen, Svalbard and Jan Mayen, the average sunshine in October is 0.4h.

When is the lowest UV index in Longyearbyen?

January through March, October through December, with an average maximum UV index of 0, are months with the lowest UV index.

What is the UV index intensity in October in Longyearbyen?

In October, the average daily maximum UV index is 0. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.
Average temperature in October - Longyearbyen, Svalbard and Jan Mayen
  • Average high temperature in October: -4°C

The warmest month (with the highest average high temperature) is July (7°C).
Months with the lowest average high temperature are January, February and March (-13°C).

  • Average low temperature in October: -9°C

The month with the highest average low temperature is July (3°C).
The coldest month (with the lowest average low temperature) is February (-21°C).

Average rainfall in October - Longyearbyen, Svalbard and Jan Mayen
  • Average rainfall in October: 19mm

The wettest month (with the highest rainfall) is August (30mm).
The driest month (with the lowest rainfall) is May (13mm).

Average rainfall days in October - Longyearbyen, Svalbard and Jan Mayen
  • Average rainfall days in October: 5 days

The month with the highest number of rainy days is August (18 days).
Months with the lowest number of rainy days are January, February and March (2 days).

Average snowfall days in October - Longyearbyen, Svalbard and Jan Mayen
  • Average snowfall days in October: 21 days

Months with the highest number of snowfall days are November and December (22 days).
The month with the lowest number of snowfall days is July (1 days).

Average sea temperature in October - Longyearbyen, Svalbard and Jan Mayen
  • Average sea temperature in October: 4°C

The best month for swimming (with the highest average sea temperature) is August (6°C).
Coldest months (with the lowest average sea temperature) are February and April (1°C).

Average daylight in October / Average sunshine in October - Longyearbyen, Svalbard and Jan Mayen
  • Average daylight in October: 5.6h

Months with the longest days are May, June and July (Average daylight: 24h).
Months with shortest days are January, November and December (Average daylight: 0h).

  • Average sunshine in October: 0.4h

The month with most sunshine is May (Average sunshine: 8.2h).
Months with least sunshine are January, February, November and December (Average sunshine: 0).

Average UV index in October - Longyearbyen, Svalbard and Jan Mayen
  • Average UV index in October: 0

Months with the highest UV index are May, June and July (UV index 2).
Months with the lowest UV index are January, February, March, October, November and December (UV index 0).