Best time to go

Trondheim in August 2027: weather, temperatures and activities

Do you want to visit Trondheim in August 2027? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether August is a good month to travel to Trondheim, Norway.

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Is it worth visiting Trondheim in August?

Check your ideal travel criteria and see if the month of August suits your plans to go to Trondheim.
What matters most?
Trondheim in August 2027: weather, temperatures and activities

Page summary

Trondheim in August in summary
Favourable weather
Min 12°C Max 18°C 132 mm 8 day(s) 85% 48% 17°C 13.4 h/day
Best activities in August
Beach and swimmingHiking and trekkingCultural visits and heritageAnimal observationNature and landscapesNightlifeGastronomyBoat trip and cruise
Practical guidelines
Very large crowds Moderate prices 04:14 20:29
Hourly weather

Average weather in Trondheim in August 2027

Favourable weather

The weather in Trondheim in August 2027 is based on statistical data from previous years in August. This allows you to forecast the weather in August 2027. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of Trondheim in August

Temperatures, precipitation and monthly trends help to better understand the climate in Trondheim in August.

Temperatures and rain in Trondheim in August

Average daily weather

Temperatures and rain day by day in August.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of August is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Trondheim in August

Seasonal normals

Seasonal normals of Trondheim in August

Check the seasonal normals in Trondheim in August and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
August
Weather data July August September
Outside temperature
Average temperature 16.3°C 15.2°C 11.1°C
Maximum temperature 18.9°C 17.9°C 14.0°C
Minimum temperature 13.8°C 12.4°C 8.2°C
Record maximum temperature 31.0°C
(2019)
27.0°C
(2009)
22.0°C
(2009)
Record low temperature 6.0°C
(2019)
6.0°C
(2020)
-1.0°C
(2009)
Number of days at +30° 1 day(s)
(3%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 18 day(s)
(58%)
16 day(s)
(52%)
6 day(s)
(20%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Sea temperature
Sea temperature (average) 14.6°C 14.7°C 13.3°C
Sea temperature (minimum) 12.9°C 12.3°C 11.3°C
Sea temperature (maximum) 16.2°C 17.3°C 15.7°C
Wind
Wind speed 12 km/h 12 km/h 14 km/h
Wind temperature 13.5°C 12.0°C 6.8°C
Precipitation (rain)
Precipitation 111.3 mm 132.1 mm 121.1 mm
Number of days with precipitation 19 day(s)
(61%)
19 day(s)
(61%)
18 day(s)
(60%)
Number of days with significant precipitation (greater than 5 mm) 8 day(s)
(25%)
8 day(s)
(26%)
8 day(s)
(25%)
Record precipitation in one day 43.7 mm
(2013)
85.5 mm
(2011)
53.1 mm
(2011)
Other weather data
Humidity 81% 85% 87%
Visibility 8.8 km 9.0 km 8.8 km
Cloud cover 51% 48% 54%
UV index 4 4 3
Daily sunshine 18h 13h 11h
Sunrise and sunset
Sunrise time 02h43 04h14 05h43
Sunset time 22h04 20h29 18h43
Day length 19h21 16h15 13h00
Our opinion on the climate in August
The review of Where And When favourable weather favourable weather fair weather
Activities and events

What to do in Trondheim in August?

Best activities in August
Beach and swimmingHiking and trekkingCultural visits and heritageAnimal observationNature and landscapesNightlifeGastronomyBoat trip and cruise
Activities not recommended in August
Northern or Southern LightsWinter sports and snow
Prices monitored continuously

The best offers right now to Trondheim

Each map is a real return flight offered from London, with its dates, airline and price. Choose one to find it on Skyscanner, or start your own search just below.

The cheapest

London Trondheim

From 19 Aug to 23 Aug 2027

£110 per person
4 days on site Direct flight Norwegian
The cheapest

London Trondheim

From 18 Aug to 25 Aug 2027

£113 per person
7 days on site With stopover(s) Norwegian
The cheapest

London Trondheim

From 13 Aug to 22 Aug 2027

£122 per person
9 days on site Direct flight Norwegian
The cheapest

London Trondheim

From 9 Aug to 16 Aug 2027

£129 per person
7 days on site With stopover(s) Norwegian
The cheapest

London Trondheim

From 10 Aug to 17 Aug 2027

£131 per person
7 days on site With stopover(s) Norwegian
The cheapest

London Trondheim

From 12 Aug to 20 Aug 2027

£133 per person
8 days on site Direct flight Norwegian
The cheapest

London Trondheim

From 6 Aug to 10 Aug 2027

£147 per person
4 days on site With stopover(s) Norwegian
The cheapest

London Trondheim

From 2 Aug to 9 Aug 2027

£160 per person
7 days on site Direct flight Norwegian
Searching for the best deals…

Round-trip prices per person, recently collected from Skyscanner. Each offer has its own collection date and fares change constantly: the price displayed on Skyscanner is authoritative.

Observed weather

What was the weather like in Trondheim in August last?

Find the observed weather calendar in Trondheim in August 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Patchy light drizzle
12°C17°C4.3 mm
2
Patchy rain nearby
13°C20°C0.2 mm
3
Partly Cloudy
15°C22°C0.0 mm
4
Patchy rain nearby
11°C17°C2.3 mm
5
Partly Cloudy
13°C17°C0.0 mm
6
Light rain shower
10°C12°C2.8 mm
7
Patchy rain nearby
11°C18°C3.5 mm
8
Cloudy
11°C19°C0.0 mm
9
Clear/Sunny
11°C23°C0.1 mm
10
Light rain shower
10°C14°C2.4 mm
11
Patchy rain nearby
11°C17°C2.6 mm
12
Patchy rain nearby
11°C17°C0.9 mm
13
Overcast
12°C20°C0.3 mm
14
Partly Cloudy
14°C22°C1.3 mm
15
Moderate or heavy rain shower
11°C17°C4.7 mm
16
Patchy rain nearby
10°C13°C2.2 mm
17
Mist
12°C14°C0.9 mm
18
Patchy rain nearby
12°C14°C0.4 mm
19
Light rain shower
9°C12°C2.1 mm
20
Light rain shower
9°C11°C3.3 mm
21
Light rain shower
8°C10°C4.6 mm
22
Light rain shower
8°C11°C10.2 mm
23
Light rain shower
9°C11°C2.6 mm
24
Light rain shower
10°C12°C2.6 mm
25
Light rain shower
10°C12°C4.5 mm
26
Clear/Sunny
9°C16°C0.0 mm
27
Clear/Sunny
9°C18°C0.0 mm
28
Clear/Sunny
10°C21°C0.0 mm
29
Partly Cloudy
13°C22°C0.0 mm
30
Partly Cloudy
12°C20°C0.0 mm
31
Partly Cloudy
10°C20°C0.0 mm
Nearby

Where to go near Trondheim in August?

Compare cities and destinations near Trondheim in August to find another travel stop, a nearby alternative or a logical continuation of your stay in Trondheim.

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Every month

Best time to visit Trondheim month by month

Compare the weather in Trondheim across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Trondheim in August: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Yes, it’s a good time. Conditions are favorable in Trondheim in August, which places this month 2th out of 12.

Expect an average of 18°C during the day and 12°C at night, with about 132 mm of precipitation spread over 8 rainy days.

The sea is only 15°C on average in August. Swimming is still possible, but it will be cool.

Expect about 13.4 hours of sunshine per day on average for this month.

This month is particularly suited to these activities: Beach and swimming, Hiking and trekking, Cultural visits and heritage and Animal observation. These are the ones for which the conditions on site are most favourable.

Yes: this month is in Very large crowds, with a visitor index of 76/100. Book your accommodation and transportation well in advance.

Prices are average: level Moderate prices, with an index of 58/100, including flights and accommodation.

The most favorable months in Trondheim are: July and August. You are therefore already in one of the best times of the year; shifting your plans would not gain you much in terms of weather.
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