Nidelva warehouses below Bakklandet in Trondheim
Norway · Destination guide
Trondheim, Norway
Best seasonJun–Aug
CurrencyNorwegian krone (NOK)
Plug typesC, F · 230 VCheck adapter →
Time zoneEurope/Oslo (UTC+2)
Emergency number110 fire / 112 police / 113 ambulance
Destination guide

A first look at Trondheim

Use Saturday for the cathedral, bridge and Bakklandet, then give Sunday a music theme at Rockheim or Ringve. The plan leaves room for food and travel, with a simple one-day version and seasonal royal-residence limits.

Explore our Trondheim guides

Weather guide

Weather in Trondheim

Winter days are short, with frost, snow or slippery wet surfaces possible. Summer brings long evenings, but waterfront wind still needs a layer. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip.

4–8°C

Cold or cool days; frost can make paths slippery.

October · representative month, not a forecast
Evenings
0–4°C
Rain
Frequent rain and showers
Daylight
Daylight changes through the season; leave time for the outdoor route.
See weather details →

What this means for packing

Pack a warm sweater and hooded coat for autumn Bakklandet walks. Use shoes with grip on damp cobbles, place the outdoor river section in daylight and keep Rockheim as a substantial indoor alternative.

Choosing a season

The best-season badge suggests months for general sightseeing, using the typical daytime temperatures and rainfall in our monthly guides. Beach holidays, festivals, winter sports and northern lights trips may suit different dates.

Climate methodology

Clothing planning bands use the calculated mean daily maximum (6.48°C) and minimum (1.77°C), rounded then expanded by 2°C each way. These are outfit prompts, not forecast limits or confidence intervals. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip. Mean monthly precipitation is 128.28 mm, with 18.8 model days of at least 1 mm; precipitation includes water-equivalent snowfall. Complete daily records were checked before averaging all thirty years.

Reviewed 2026-10-09

NASA POWER MERRA-2 daily gridded data, averaged 1991–2020 · NASA POWER: daily data methodology · Trondheim official visitor information · Trondheim local transport

About the climate in Trondheim

Winter days are short, with frost, snow or slippery wet surfaces possible. Summer brings long evenings, but waterfront wind still needs a layer. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip.

Packing guide

What to wear in Trondheim in May.

An example packing list for Trondheim in May

Use this as a starting point and choose what suits your plans. Packtricia tailors your list and quantities to your trip length, weather and preferences.

Clothing

  • Underwear
  • Bras (if worn)
  • Socks
  • Sleepwear
  • Long-sleeved tops
  • T-shirts or lightweight shirts
  • Trousers
  • Light sweater or cardigan
  • Hooded waterproof jacket
  • Comfortable walking shoes

Toiletries

  • Toothbrush
  • Toothpaste
  • Shampoo
  • Conditioner
  • Body wash or soap
  • Deodorant
  • Skincare products
  • Sunscreen
  • Hairbrush or comb
  • Shaving supplies (if used)
  • Menstrual products (if needed)
  • Contact lens solution (if used)

Essentials

  • Passport or accepted travel ID
  • Travel tickets and booking confirmations
  • Wallet and payment cards
  • Phone
  • Charging cable and charger
  • Travel adapter (if needed)
  • Medication (if needed)
  • Glasses or contact lenses (if used)
  • Refillable water bottle
  • Day bag
  • Backup cash
  • Power bank
  • Sunglasses
  • Water-resistant pouch for phone and documents
Monthly weather and packing notes

Bring a shirt, removable sweater and rain shell for Munkegata and Torvet. Closed shoes suit the old paving; carry the sweater for a slower Nidelva pause even when the city-centre walk feels comfortable.

Daytime
9–13°C
Evenings
1–5°C
Rain
Frequent rain and showers
Daylight
Daylight changes through the season; leave time for the outdoor route.
Packing style
Removable layers and an accessible rain shell

Clothing planning bands use the calculated mean daily maximum (10.89°C) and minimum (3.09°C), rounded then expanded by 2°C each way. These are outfit prompts, not forecast limits or confidence intervals. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip. Mean monthly precipitation is 94.09 mm, with 17.8 model days of at least 1 mm; precipitation includes water-equivalent snowfall. Complete daily records were checked before averaging all thirty years.

Outfit ideas for your outings

May around Nidaros Cathedral and Bakklandet

  • Long-sleeved shirt or breathable T-shirt
  • Removable light knit
  • Comfortable long trousers
  • Comfortable closed walking shoes with a grippy sole
  • Packable hooded waterproof jacket

An exposed outing around the Nidelva riverfront

  • Long-sleeved shirt or breathable T-shirt
  • Removable light knit
  • Comfortable closed walking shoes with a grippy sole
  • Packable hooded waterproof jacket
  • Carry water and allow room to store a removed layer

A slower stop at Rockheim’s music exhibits

  • Long-sleeved shirt or breathable T-shirt
  • Removable knit
  • Comfortable trousers or skirt
  • Closed walking shoes
  • Small bag for the outer jacket

What to leave behind

  • Stiff unworn shoes: test them before a day on old paving, riverside paths or hill steps.
  • Only light summer clothes: keep a warmer layer and rain protection for a cooler wet day.

Reviewed 2026-10-09

NASA POWER MERRA-2 daily gridded data, averaged 1991–2020 · NASA POWER: daily data methodology · Trondheim official visitor information · Trondheim local transport

Transport guide

Getting around Trondheim

Use Entur for Trondheim bus, tram and onward rail connections. Search the exact stop and check the ticket scope rather than assuming a local journey and a regional trip use the same fare.

Check the operator’s current service notices and ticket instructions before travelling.

Practical essentials

Language and calling code

Language
Norwegian
Calling code
+47
Useful essentials for Trondheim
  • Broken-in walking shoes with seasonal grip
  • Removable mid-layer
  • Hooded rain shell or weather-resistant winter coat
  • Small zipped day bag
  • travel adapter matched to the accommodation socket if needed
  • Saved attraction bookings and local transport details

Do you need a visa?

Check travel-document and visa requirements for your passport, destination and transit stops.

Check your requirements on TravelDoc

Use the checker as a starting point, then confirm requirements with the relevant government or embassy before travelling.

Things to do in Trondheim

Find a guided walk or an attraction visit to fit around your plans in Trondheim.

Stay connected

Mobile data for your trip. Check what your current plan includes for roaming. If you need another option for maps, messages and booking details, compare NXTL eSIM coverage and rates. Check that your phone supports eSIM and is unlocked, and check coverage for every stop. Download important maps and confirmations for offline use too.