Nuuk
Greenland
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Nuuk, Greenland

A sunny winter day in Nuuk city, Greenland with snow cover, and a river and snowy mountains in the distance
A sunny winter day in Nuuk city, Greenland with snow cover, and a river and snowy mountains in the distance
September, the first month of the autumn, in Nuuk, is also a frosty month, with average temperature ranging between max 6°C (42.8°F) and min 1.4°C (34.5°F).

Temperature

In Nuuk, the average high-temperature in September slightly decreases, from 9.3°C (48.7°F) in August, to a still chilly 6°C (42.8°F). The average low-temperature, in September, is 1.4°C (34.5°F).

Rainfall

September is the month with the most rainfall in Nuuk. Rain falls for 14.1 days and accumulates 89mm (3.5") of precipitation.

Snowfall

Months with snowfall in Nuuk are January through December.

Sea temperature

In Nuuk, Greenland, the average water temperature is 3.5°C (38.3°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

In Nuuk, Greenland, the average length of the day is 13h.

Sunshine

In Nuuk, the average sunshine is 3h.

UV index

The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 2 translate into the following recommendations:
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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in September in Nuuk?

In September, in Nuuk, Greenland, the average high-temperature is 6°C (42.8°F), and the average low-temperature is 1.4°C (34.5°F).

How much does it rain in Nuuk in September?

In September, in Nuuk, Greenland, the rain falls for 14.1 days. Throughout September, 89mm (3.5") of precipitation is accumulated.

What is the rainiest month in Nuuk?

September is the month with the most rainfall. Rain falls for 14.1 days and accumulates 89mm (3.5") of precipitation.

How many days does it snow in September in Nuuk?

In September, in Nuuk, Greenland, snow falls for 4.3 days.

What is the sea temperature in September in Nuuk?

In Nuuk, the average seawater temperature in September is 3.5°C (38.3°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 average length of the day in September in Nuuk?

The average length of the day in September in Nuuk is 13h.

How long on average sun shines in September in Nuuk?

In September, the average sunshine is 3h.

How high is the UV index in September in Nuuk?

In September, the average daily maximum UV index in Nuuk, Greenland, is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.
Average temperature in September - Nuuk, Greenland
  • Average high temperature in September: 6°C

The warmest month (with the highest average high temperature) is July (9.9°C).
The month with the lowest average high temperature is March (-5.1°C).

  • Average low temperature in September: 1.4°C

Months with the highest average low temperature are July and August (3.5°C).
Coldest months (with the lowest average low temperature) are February and March (-10.7°C).

Average rainfall in September - Nuuk, Greenland
  • Average rainfall in September: 89mm

The wettest month (with the highest rainfall) is September (89mm).
The driest month (with the lowest rainfall) is January (40mm).

Average rainfall days in September - Nuuk, Greenland
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is March (15.1 days).
The month with the lowest number of rainy days is June (10.5 days).

Average snowfall days in September - Nuuk, Greenland
  • Average snowfall days in September: 4.3 days

The month with the highest number of snowfall days is March (14.5 days).
The month with the lowest number of snowfall days is July (0.1 days).

Average sea temperature in September - Nuuk, Greenland
  • Average sea temperature in September: 3.5°C

The best month for swimming (with the highest average sea temperature) is August (4.1°C).
The coldest month (with the lowest average sea temperature) is February (-0.9°C).

Average daylight in September / Average sunshine in September - Nuuk, Greenland
  • Average daylight in September: 13h

The month with the longest days is June (Average daylight: 20.9h).
The month with shortest days is December (Average daylight: 4.4h).

  • Average sunshine in September: 3h

The month with most sunshine is April (Average sunshine: 8h).
Months with least sunshine are January, November and December (Average sunshine: 1).

Average UV index in September - Nuuk, Greenland
  • Average UV index in September: 2

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 0).