Is the weather good in Greenland in September 2025?
OK Weather
Cool
☁️
Cloudy
For the past few decades, the average daily temperatures in Greenland during September have been around +6°C.
In Greenland the temperature rarely varies more than seven degrees between the different parts with the highest temperature +6°C in Nuuk to +6°C in Nuuk. So you should be able to pack for similar conditions wherever you go in the country.
Temperature, wind and humidity in September
Average
Nuuk
☀️
+6°C
Avg. max. temperature
-8°C
Min.
+19°C
Max.
76 mm
Total precipitation
82%
Avg. humidity
4 m/s
Avg. wind
3 ☀️
Sunny Days
12 ⛅️
Cloudy
11 🌦
Rainy
Our opinion: Greenland has OK weather in September.
Greenland in September – what city is the…
rainiest? Nuuk, with an average of 3 mm of rain and humidity of 82%;
warmest? Nuuk, with daytime temperatures averaging +6°C;
windiest? Nuuk, with an average of 4 m/s;
coolest? Nuuk, with daytime temperatures averaging +6°C;
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How good is the weather in Greenland in September?
During September, the Greenland is characterized by variable weather with air pressure around 1007 HPa and therefore elements of sun, rain, and wind – with a little extra emphasis on the latter two. The humidity in September ranges between 82% in Nuuk and 82% in Nuuk.
Variable weather with sun, rain and wind: +6°C in average daily temperature.
This is how hot it usually is in September
The average daily temperatures above don't tell you everything about how hot it can be in Greenland. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for September:
Average
Nuuk
Average maximum temperature for the month: +6°C;
Average minimum temperature for the month: +2°C;
Highest monthly temperature: +8°C;
Lowest monthly temperature: 0°C;
Monthly temperatures:
Average
Nuuk
Warmest: July with an average +10°C during the day;
Coldest: February with an average -8°C of the day;
Hottest month in hottest city: July in Nuuk;
Coldest month in coolest city: February in Nuuk;
Winds in Greenland during September
Wind speed in Greenland in September based on historical data:
Average
Nuuk
September tends to offer light winds averaging 4 m/s. However, coastal cities may experience breezes during the mornings and afternoons.
Comparison between cities in September:
Highest average wind speed: Nuuk with 4 m/s;
Lowest average wind speed: Nuuk with 4 m/s;
Windiest day of the month: Nuuk with 5 m/s;
The least windy day of the month: Nuuk with 3 m/s;
Humidity and precipitation in Greenland in September
Amount of rainfall in mm during September in Greenland based on historical data:
Average
Nuuk
September tends to be an extremely humid month with 79% humidity and 32 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.
Comparison between cities in September:
Average
Nuuk
Highest average rainfall: Nuuk with 76 mm;
Lowest average rainfall: Nuuk with 76 mm;
Most number of rainy days: Nuuk with 11 rainy days;
Least number of rainy days: Nuuk with 11 rainy days;
Highest risk of rain during the day: Nuuk with 37%;
Least risk of rain during the day: Nuuk with 37%;
Highest average humidity: Nuuk with 82%;
Lowest average humidity: Nuuk with 82%;
Snow
Amount of snow in mm. during September in Greenland based on historical data:
Average
Nuuk
Total snow in September is about 32 mm, with a 27% chance of snow on a typical day.
Comparison between cities in September:
Average
Nuuk
Highest average snowfall: Nuuk with 11 mm;
Lowest average snowfall: Nuuk with 11 mm;
Most number of snowy days: Nuuk with 4 snowy days;
Least number of snowy days: Nuuk with 4 snowy days;
Highest chance of snow during the day: Nuuk with 13%;
Least chance of snow during the day: Nuuk with 13%;
Tips for traveling to Greenland in September
Looking for some tips for traveling to the sun, snow, or whatever you're aiming for Greenland? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.
Here is some advice on what to pack and what kind of activities you can do in the Greenland based on the weather that September is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.
Cloudy, cool weather with light winds and very high humidity in September
Pack right for September
The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
When it’s cold you need warm clothes such as a hat, gloves and scarf. If you plan on varied activities it might be a good idea to pack flexible clothing and wear multiple layers, as you can then easily adapt and regulate the temperature. For example you may want to wear cotton closest to the body, covered by a waterproof layer of wool or synthetics and then some warm layer of for example wool, fleece or down.
Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.
FAQ
Frequently asked questions about the weather in Greenland in September:
What can you do outside when it's warm in Greenland?
Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.
Is September a good time to visit Greenland?
It’s always a good time to visit Greenland, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
For this page, we’ve looked at the typical weather in Greenland, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.