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The weather in September in Svalbard
It's cold in September in Svalbard with an average temperature of 5°C. Temperatures this month range from a low of 3°C to a high of 7°C. At night, you can expect temperatures between -1°C and 3°C.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Svalbard. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 13°C in 2017, Svalbard reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was -7°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of -9°C to a highest value of 9°C.
Precipitation and snowfall
In September, there is an average of 91 mm of precipitation, spread over 11 days. Of the total precipitation, about 14 cm falls as snow in September. The wind speed is around 5 Bft, mostly coming from the South.
Daily weather in September for Svalbard
Click on any day in September to get detailed info about the usual weather on that day in Svalbard. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Svalbard | New York | |
|---|---|---|
| Average temperature | 5°C | 27°C |
| Max. temperature | 7°C | 31°C |
| Min. temperature | -1°C | -5°C |
| Total precipitation | 91 mm | 57 mm |
| Rainy days | 11 days | 9 days |
| Total snowfall | 14 cm | 0 cm |
| Snowy days | 6 days | 0 days |
Start of September
The month of September starts in Svalbard with cold temps, averaging around 6°C during the day and nights around 3°C.
Mid September
By mid-September, daytime temps drop to around 5°C, with nights around 1°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Svalbard is around 4°C, while nighttime temps are about 1°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Check out the climate of Svalbard for all months and discover the best travel time
The climate in Svalbard is based on weather data from Longyearbyen. Other spots might have different weather. You can check out all destinations in Svalbard to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in September in Svalbard. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Svalbard
Temperature in September in Svalbard over the years
Precipitation charts
These charts show the average amount of precipitation in September in Svalbard. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Svalbard
Total precipitation in September in Svalbard over the years
Daily Snowfall in September in Svalbard
Snowfall in September in Svalbard per year
Daily UV index in September in Svalbard
This chart shows the average daily UV index in September in Svalbard, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Svalbard
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Average weather in Svalbard by month
Click on a month below to see detailed weather info for Svalbard. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.