Monthly 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

What is the coldest month in Longyearbyen?

The coldest months in Longyearbyen are January through March, with an average high-temperature of -13°C (8.6°F).

How many days does it rain in Longyearbyen?

In Longyearbyen, Svalbard and Jan Mayen, during the entire year, the rain falls for 86 days and collects up to 271mm (10.7") of precipitation.

When does it snow in Longyearbyen?

Months with snowfall in Longyearbyen, Svalbard and Jan Mayen, are January through December.

How many days does it snow in Longyearbyen?

In Longyearbyen, during the entire year, snow falls for 176 days.

What months are the sea coldest in Longyearbyen?

February and April, with an average sea temperature of 1°C (33.8°F), are months with the coldest seawater in Longyearbyen, Svalbard and Jan Mayen. For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the driest month in Longyearbyen?

May is the month with the least rainfall in Longyearbyen, Svalbard and Jan Mayen. Rain falls for 4 days and accumulates 13mm (0.5") of precipitation.

What is the warmest month in Longyearbyen?

July is the warmest month in Longyearbyen, Svalbard and Jan Mayen, with an average high-temperature of 7°C (44.6°F) and an average low-temperature of 3°C (37.4°F).

What is the wettest month in Longyearbyen?

August is the month with the most rainfall in Longyearbyen, Svalbard and Jan Mayen. Rain falls for 18 days and accumulates 30mm (1.2") of precipitation.

What is the month with the warmest sea water in Longyearbyen?

With an average sea temperature of 6°C (42.8°F), August is the month with the warmest seawater in Longyearbyen, Svalbard and Jan Mayen. At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

When does it snow the most in Longyearbyen?

Months with the most snowfall days in Longyearbyen, Svalbard and Jan Mayen, are November and December, with an average of 22 snowfall days.
Average rainfall - Longyearbyen, Svalbard and Jan Mayen
Average rainfall days - Longyearbyen, Svalbard and Jan Mayen

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 - Longyearbyen, Svalbard and Jan Mayen

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 - Longyearbyen, Svalbard and Jan Mayen
Average daylight / Average sunshine - Longyearbyen, Svalbard and Jan Mayen

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).

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 - Longyearbyen, Svalbard and Jan Mayen

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).

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