Trondheim in Fall
In fall (September, October and November), Trondheim sees average daytime highs around 9°C and overnight lows near 3°C, with 269 mm of precipitation over about 43 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 16°C in early September to 2°C by late November. The sky is clear or mostly clear about 16% of the time across fall, and the air most often feels dry.
Fall is Trondheim's 2nd-best season to visit on our travel score. For the whole year in context, see Trondheim's year-round climate.
- Avg daytime high
- 9°C
- 3rd-warmest season
- Avg overnight low
- 3°C
- Precipitation
- 269 mm
- 43 wet days
- Avg wind
- 9 km/h
- Travel score
- 1.6
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Trondheim in Fall
Over the season highs ease from about 16°C in early September to 2°C by late November.
A typical fall day in Trondheim reaches about 9°C and drops to 3°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Trondheim
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 45 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Trondheim weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 0° / -5° | 96 | 15.9 | 12.7 | 5.2 | 0.0 |
| Feb | 1° / -5° | 84 | 14.2 | 11.9 | 8.1 | 0.0 |
| Mar | 4° / -3° | 88 | 15.4 | 10.8 | 11.2 | 0.1 |
| Apr | 9° / 1° | 67 | 13.6 | 5.4 | 14.5 | 1.6 |
| May | 13° / 5° | 70 | 15.6 | 1.4 | 17.7 | 3.2 |
| Jun | 16° / 8° | 95 | 15.6 | 0 | 19.8 | 4.3 |
| Jul | 19° / 11° | 85 | 14.8 | 0 | 18.9 | 5.3 |
| Aug | 19° / 11° | 99 | 14.9 | 0 | 15.9 | 5.1 |
| Sep | 14° / 7° | 102 | 14.8 | 0 | 12.7 | 3.6 |
| Oct | 8° / 3° | 87 | 15.2 | 2.8 | 9.4 | 1.3 |
| Nov | 3° / -1° | 79 | 13.2 | 7.3 | 6.2 | 0.0 |
| Dec | 1° / -4° | 94 | 15.3 | 10.7 | 4.2 | 0.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 16% of the time across fall.
Chance of precipitation in Fall
Trondheim gets around 269 mm of rain and snow over 43 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 14 h 12 min in early September to 4 h 54 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 1.1 kWh/m².
Is fall a good time to visit Trondheim?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Trondheim.
What to pack for Trondheim in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Trondheim sees daytime highs around 9°C and nights near 3°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 43 days see rain.
Sea temperature near Trondheim in Fall
The nearest coast averages about 11°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 55 km away) is warmest in August at about 14°C and coldest in March near 5°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 6 | 6 | 5 | 6 | 8 | 10 | 13 | 14 | 13 | 11 | 9 | 7 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 6 | Bracing |
| Feb | 6 | Bracing |
| Mar | 5 | Bracing |
| Apr | 6 | Bracing |
| May | 8 | Bracing |
| Jun | 10 | Bracing |
| Jul | 13 | Bracing |
| Aug | 14 | Bracing |
| Sep | 13 | Bracing |
| Oct | 11 | Bracing |
| Nov | 9 | Bracing |
| Dec | 7 | Bracing |
UV index in Trondheim in Fall
Clear-sky midday UV across fall averages around 1. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Trondheim peaks around July 13 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 0 | 1 | 2 | 4 | 4 | 5 | 4 | 2 | 1 | 0 | 0 |
| Level | Low | Low | Low | Moderate | Moderate | Moderate | Moderate | Moderate | Low | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 0 | Low |
| Mar | 1 | Low |
| Apr | 2 | Moderate |
| May | 4 | Moderate |
| Jun | 4 | Moderate |
| Jul | 5 | Moderate |
| Aug | 4 | Moderate |
| Sep | 2 | Low |
| Oct | 1 | Low |
| Nov | 0 | Low |
| Dec | 0 | Low |
Where is Trondheim?
Trondheim sits at 63.4°N, 10.4°E, 18 m above sea level, in Norway. The nearest listed city is Stjørdalshalsen, 27 km away.
Topography around Trondheim
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Trondheim.
Within 3 km, the terrain around Trondheim has significant variations in elevation — a maximum elevation change of 312 m around an average of 52 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 558 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,431 m.
The land around Trondheim is covered by trees (33%), artificial surfaces (31%) and water (31%) within 3 km, water (48%) and trees (34%) within 16 km, and grassland (37%), trees (36%) and water (22%) within 80 km.
Norway travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 91% of US
- price level, 2025
- GDP per capita
- $94,594
- 2025
- Happiness
- 7.2 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 2.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 613
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Trondheim (63.4305°, 10.3951°, elevation 18 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.