Weather and climate

Will there be snow? How cold will it be? We have the answers for you.

Norway is a long, rugged country with fjords, steep mountains and narrow valleys. The weather is reflected in Norway's varied landscape. During summer, the temperature easily reaches 30 degrees Celsius (90 ℉) in parts of the country, while during winter the temperature can go as low as –50 degrees Celsius (–60 ℉) in some areas.

So, what will the weather be like during exercise Trident Juncture? The answer is: Challenging and unpredictable. A warm, sunny day can suddenly turn into a cold and stormy one within an hour. The conditions also vary greatly even in short distances. When driving, you will experience that the driving conditions can change rapidly. Even on a short drive, the road surface can go from seemingly dry, to slippery.

Inland and mountain areas
In late October and beginning of November, the average daily temperature in the inland training areas normally circles around 0 degrees Celsius (32 ℉). At daytime, the temperature normally reaches 5 degrees Celsius (41 ℉) and –5 (23 ℉) at night. But night temperatures can be much lower. The weather can be sunny and mild, but sleet and snow are to be expected – especially in the mountains.

Lowland and coastal areas
Temperatures near or along the coast are generally higher than inland, but the coast is also far more windy and rainy. In October–November, day temperatures can easily reach 10 degrees (50 ℉). Snow along the coast is not normal at this time of year, but expect frost and icy roads – especially at night and in the mornings.

You can read more about Norwegian climate on the Norwegian Meteorological Institute's website.

In the links below you will find updated weather forecasts, road reports (in Norwegian only) and current status on flooding and landslides.

To get the most out of the exercise, you should take certain precautions. To maintain your body temperature at all times and to be equipped for the cold weather, you should know what to wear and what to eat and drink. See our tips below.

Drink water

To avoid dehydration, you should drink at least 2.5 litres (84 oz.) of water a day.

Eat food

Heat your food and drinks – it keeps you warm. Eating just before going to sleep, keeps your body temperature higher during the night.

Protect face

Do not go out into the cold right after shaving or washing your face. This is because soap and water deplete the layer of fat on your skin. You should use Vaseline or some other hydrating cream before going out in the cold.

Cover hands

Do not touch any metal objects without first covering your hands. Always use windproof woollen mittens.

Dry feet

Keep your feet clean, dry and warm. Keep a few extra pairs of socks in your bag to wear at night.

Wool clothing

To keep warm, you should wear a layer of wool next to your skin. It is better to wear several thin layers than one thick layer. Always wear a windproof jacket and trousers on the outside. Use braces/suspenders instead of a belt for better air circulation.

Reindeer and moose

These animals are usually grazing or moving from place to place in search of food. They must not be disturbed. Slow down and keep as far away from them as possible.


Frostbite can occur even if the temperature is above zero. The symptoms are moderate pain and a tingling sensation in the skin. The skin turns white and hard. To prevent frostbite, replace wet clothes with dry clothes and keep all body parts warm.

Wind Chill Temperatures

Autumn in Norway can be cold at times. The following table provides an overview of how wind greatly reduces temperature. This table shows you the effective temperature under different weather conditions:

Rotate your phone or slide left to see the entire table.

Wind speed (m/s) 5℃ 0℃ –5℃ –10℃ –15℃
Light breeze (1.5–3.0 m/s) 4℃ -2℃ -7℃ -13℃ -19℃
Gentle breeze (4.5–6.0 m/s) 2℃ -4℃ -11℃ -17℃ -23℃
Moderate breeze (7.5–9.0 m/s) 1℃ -6℃ -12℃ -19℃ -25℃
Fresh breeze (10.5–11.5 m/s) 0℃ -7℃ -14℃ -20℃ -27℃
Strong breeze (12.0–13.5 m/s) -1℃ -7℃ -14℃ -21℃ -27℃
Near gale (15.0–16.5 m/s) -1℃ -8℃ -15℃ -22℃ -29℃
Strong gale (18.0–19.5 m/s) -2℃ -9℃ -16℃ -23℃ -30℃

Celsius to Fahrenheit Temperature Converter

Not quite up to speed with the Celsius system, are you? Use our temperature converter and see the temperature in Fahrenheit.


 See also



en_212_climateen_211_traffic/en/exercise-and-operations/exercises/nato-exercise-2018/participants/traffic/media/PubImages/HMKG_Oslofjord%2015_Brendefur_070615_7%20(1).jpgDriving in NorwayWhat does a broken white line on the road shoulder mean? And how well do you know Norwegian road signs? en_212_climate
en_212_climateen_213_facts1/en/exercise-and-operations/exercises/nato-exercise-2018/participants/facts/media/PubImages/factsnorwaytop.jpgGet to know NorwayAre there polar bears in Norway? How do you say "thank you" in Norwegian? Find out here.en_212_climate
en_212_climateen_210_environment/en/exercise-and-operations/exercises/nato-exercise-2018/participants/environment/media/PubImages/DSC_4164-Edit.jpgTaking care of the environmentWe need your help to avoid accidents and damages during the exercise.en_212_climate

Published 03 September 2018 13:35.. Last updated 26 September 2018 15:44.