Weathermondo.comLongyearbyen climate and temperatures
The climate of Longyearbyen is a tundra climate (Köppen: ET), cold with no true summers. Monthly temperatures range from a minimum of -9°C in winter (December–February) to a maximum of 8°C in summer (June–August). The average annual temperature is around 0°C.
During the winter months, nighttime temperatures can drop to an average of -15°C, while summer nights average around 5°C.
Climate table of Longyearbyen
The climate table below gives you a clear overview of the climate in Longyearbyen by month, from average temperatures and rainfall to UV levels. This makes it easy to see when the weather best suits your travel plans.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 14 | 16 | 17 | 19 | 23 | 27 | 30 | 30 | 27 | 23 | 18 | 16 |
| Temp. min (°C) | 6 | 7 | 9 | 11 | 15 | 19 | 22 | 22 | 19 | 15 | 10 | 7 |
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| Rainfall (mm) | 46 | 34 | 46 | 64 | 43 | 23 | 22 | 75 | 77 | 84 | 61 | 25 |
| UV index | 4 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 6 | 5 | 4 | 4 |
Best time to visit Longyearbyen
The best time to visit Longyearbyen is July. During this period, temperatures are usually pleasant to warm and there is relatively little rainfall. Especially in July, the climate is favorable, with an average high temperature of 8°C and around 39 mm of rainfall. The warmest month is July, with an average daytime temperature of around 8°C. The driest month is June, with about 23 mm of rainfall, while November is usually the wettest month of the year, with approximately 122 mm. Snow is rare here, but may occasionally fall in June, March, January, February, April, May, August, September, October, November en December.
Average temperature per month
This chart shows the average daytime (maximum) and nighttime (minimum) temperatures per month in Longyearbyen. The figures are based on climate data from recent years and are presented in degrees Celsius, so you can clearly see the temperature range for each month.
Average rainfall per month
This chart shows the average monthly rainfall in Longyearbyen. The figures are based on long-term climate data and are displayed in millimeters, so you can immediately see which months are drier or wetter.
Average UV index per month
This chart shows the average monthly sun intensity in Longyearbyen. The UV index ranges from 0 (no UV radiation) to 11+ (extreme). A higher UV index means you can burn more quickly, making proper sun protection increasingly important.
Average annual temperature
This chart shows the average annual temperature in Longyearbyen based on data from the past ten years. It allows you to see at a glance how the climate is evolving and whether there are clear warming trends.
Average annual rainfall
This chart shows the average annual rainfall in Longyearbyen over the past ten years. It allows you to see at a glance how much rain falls each year and whether there are clear fluctuations between the years.
Weather experiences in Longyearbyen
The weather in Longyearbyen is rated an average of 4.3 out of 5 stars by 8 visitors. Have you been to Longyearbyen? Share your experience with the weather to help other visitors plan their trip.
Average weather per month
Click on a month below and discover what the weather in Longyearbyen is typically like. For each period, you can instantly see the average temperature, rainfall, wind, and UV index. Thanks to years of historical weather data, you’ll know exactly what to expect during your trip.