Trondheim in October usually sees fair weather conditions, with an average daily high temperature of +9°C and roughly 2 sunny days. However, you should prepare for about 18 rainy days with an average precipitation of 92 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+9°C
Avg. max. temperature
-12°C
Min.
+22°C
Max.
92 mm
Total precipitation
80%
Avg. humidity
2 m/s
Avg. wind
2 ☀️
Sunny Days
8 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Trondheim has OK weather in October.
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Average temperature in Trondheim in October
Here are the expected maximum, average and minimum temperatures in Trondheim for October based on the historical data.
Last Year
Historical Data
The temperature in October is +6°C on average, with a range between a maximum of +15°C during the day and a minimum of -7°C at night.
The average maximum temperature goes down 64% by the end of the month, compared with the beginning of the month, from +12°C to -2°C.
Is Trondheim warm or cold in October?
Trondheim is typically cool in October.
Maximum temperatures go down compared to the previous month from +14°C to +9°C. The minimum temperature also goes down from +7°C to +3°C.
Pack a sweater and a jacket as there will be cooler temperatures.
Take a look at how October is compared to other months in Trondheim:
Water temperature in Trondheim in October
Water in Trondheim in October is Cold. It varies from +9°C to +13°C, with an average of +11°C.Note that the air temperature is lower than the water temperature, averaging around +9°C.
In October, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Trondheim are reached in August, when the average sea temperature rises to +15°C. The coldest water temperatures are in March, with an average of +5°C.
Can you swim in Trondheim in October?
We would not recommend swimming in Trondheim in October, the water is very cold (+11°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Trondheim in October
Trondheim weather looks like this, on average, in October and the surrounding months.
September
October
November
Avg. temperature
+14°C
+9°C
+4°C
Min. temperature
-2°C
-12°C
-18°C
Max. temperature
+25°C
+22°C
+16°C
Rainfall
121 mm
92 mm
62 mm
Wind
1 m/s
2 m/s
2 m/s
Avg. water temperature
+13°C
+11°C
+9°C
Humidity
79%
80%
80%
Air pressure
1010 HPa
1008 HPa
1006 HPa
Sunny days
2
2
2
Cloudy days
7
8
9
Rainy days
21
18
9
Snowy days
0
3
10
October weather is still as ok as in September.It’s getting colder in October. From +14°C in the day, the average maximum temperature lowers to +9°C.As October arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 121 mm to 92 mm.Humidity rises from 79% to 80%.Winds are stronger in comparison to September, going up from 1 m/s to 2 m/s on average.The amount of sunny days stay about the same, averaging 2 sunny days during the month.
November brings much the same weather, it remains ok.
Wind speed in Trondheim in October based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Trondheim is gradually increasing during October, going from 1 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during October in Trondheim based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in October stands at 65%, leading to total precipitation of around 178 mm. The maximum amount of rainfall per day is around 21 mm, which is considered light rain.October is a pretty wet month with over 20 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how October is compared with other months in the amount of precipitation, total mm:
Trondheim wettest month is August, where a typical day has a 74% chance of precipitation and 124 mm of rainfall per day. February, on the other hand, is the driest month with a mere 14% chance of precipitation and 38 mm of rainfall per day.
Snow
Amount of snow in mm during October in Trondheim based on historical data.
Last Year
Historical Data
The chance of snow on a typical day in October is 0%, for a monthly total of around 0 mm.
Here’s how October is compared with other months in the amount of snow, total mm:
How was the weather last October in Trondheim?
This is the weather in Trondheim in October 2023:
1 October
🌧️
+12°C
2 October
☁️
+15°C
3 October
☁️
+13°C
4 October
🌧️
+11°C
5 October
☁️
+10°C
6 October
🌧️
+7°C
7 October
🌧️
+4°C
8 October
🌧️
+5°C
9 October
🌧️
+7°C
10 October
🌧️
+11°C
11 October
🌧️
+10°C
12 October
🌧️
+8°C
13 October
☁️
+9°C
14 October
🌧️
+6°C
15 October
🌧️
+5°C
16 October
🌧️
+4°C
17 October
🌧️
+7°C
18 October
☁️
+6°C
19 October
☀️
+3°C
20 October
☀️
+3°C
21 October
☀️
+3°C
22 October
☁️
+8°C
23 October
☁️
+7°C
24 October
☁️
+6°C
25 October
☁️
+7°C
26 October
☀️
+4°C
27 October
☀️
+2°C
28 October
☀️
+1°C
29 October
☁️
+1°C
30 October
☀️
-1°C
31 October
☁️
-2°C
In October 2023 Trondheim had 7 sunny days, 11 cloudy days, and 13 rainy days. The average maximum temperature was +6°C, with an absolute maximum of +15°C and a minimum of -2°C. The average humidity was 84%, with a maximum of 100% and a minimum of 57%. The average wind speed was 1 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in October?
Climate Change over Years
This is how Trondheim climate have been changing during last 43 years period.
The climate in Trondheim in October has not changed much over the last 43 years.
The average temperature was the lowest in 1981 (+7°C) and the highest in 2014 (+11°C). The driest year was 2002 with only 617 mm of rainfall, and the wettest year was 2007 with 1311 mm.
FAQ
Frequently asked questions about the weather in Trondheim in October:
Is October a good time to visit Trondheim?
It’s always a good time to visit Trondheim, but the weather is changeable in October, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Trondheim in October?
Not really, October is not the best time to sunbathe, unless you visit a local solarium.
Can you swim in Trondheim in October?
Swimming in Trondheim in October is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Trondheim rainy in October?
Trondheim is often rainy in October. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Trondheim in October?
Usually, it’s not very sunny in Trondheim in October, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Trondheim, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
