Trondheim weather in September (Sør-Trøndelag, Norway)

What is the weather forecast for Trondheim in September? Get all the weather information you need to plan your visit.

Temperatures

During September, Trondheim usually has moderate temperatures and high rainfall. Daytime temperatures generally peak at 16°C, but after sunset, they often decrease to around 7°C.

Precipitation

Trondheim in September usually receives high rainfall, averaging around 120 mm for the month. With this being the rainiest month, having an umbrella is essential to avoid unexpected rain. Based on our climate data of the past 30 years, about 24 days of rain are anticipated.

Average sunshine

The month brings about 132 hours of sunlight, offering a comfortable mix of sun and shade.

In case you lean more towards enjoying temperate temperatures and rain-free days July typically offers the most optimal weather. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Trondheim climate page with graphs.

 

Trondheim, monthly averages in September

Min Temperature 7°C  

Max Temperature 16°C  

Chance of Rain 80%  

Precipitation 120 mm  

Rainy days 24 days  

Humidity 82% *  

Sunshine 132 hours *  

Percentage Sunshine *  

Data from: Trondheim, Norway (27 KM, 16 Miles).

Where to go in Norway in September

Find out more about the weather in Norway and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Trondheim.

Our site offers climate and forecast data for every country in the world. Are you going to Norway? On this website you can find historical weather averages for many cities in Norway. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.