Trondheim weather in September (Sør-Trøndelag, Norway)
Planning a trip to Trondheim in September? Check out this comprehensive weather guide.
In September, Trondheim generally has moderate temperatures and high rainfall. Throughout the daytime, temperatures often hover around 16°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 7°C.
Trondheim in September usually receives high rainfall, averaging around 120 mm for the month. With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Based on our climate data of the past 30 years, about 24 days of rain are anticipated.
The area enjoys a balanced 132 hours of sunlight. Ensuring it's neither too overcast nor too sunny.
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
Where to go in Norway in September
Find out more about the weather in Norway in September and which places have the best weather conditions in this month.
So, what should you wear in Trondheim in September?
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 in September.
Interested in more climate information?
Weather and Climate 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 climate conditions. Find out where to go with our weather planner.