The month in detail
What to expect in September
Autumn marks the end of peak season in Tromsø. Temperatures drop (11°C) and rain returns (50% of days). With 50% of rainy days, always have indoor alternatives planned.
September ranks 5 out of 12 months in Tromsø. Compared to August: −4°C daytime, 9 pts more rainy days, −2.1h of sun per day.
This month's conditions
What it's like in September
UV index
2 · low
no protection needed
Feels like
dry air
7°
Daylight
12.7h of daylight
Air quality
good
AQI 23
Compare
Is September the right month?
The best month in Tromsø is July (4.5/10), 3.5 pts higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Tromsø
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Tromsø
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a subarctic stay.
Country · Norway
🗣️LanguageNorwegian
💶CurrencyNorwegian Krone (kr)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘVery expensive · 5/5
🌡️ Climate
🌍Climate typeSubarctic oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 17°C
❄️Coolest monthJanuary · -3°C
🌧️Rainiest month ⓘOctober · 57%
🌌 Subarctic stay
🌌Northern lights ⓘSept → Mars
☀️Midnight sun ⓘJuin (~21h)
🌬️WindVery frequent
🛂VisaSchengen · 90 days
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Tromsø ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
NorwaySubarctic oceanic climate with a 4.5 → 0.5 gap between best and worst month. 10 years of ERA5 data to choose by project.
69.65°N · 18.96°E
Questions
Frequently asked questions
What is the best time to visit Tromsø?
July is the best month with 17.0°C highs, 10.0°C lows, 7.3h of sunshine and 41.0% rainy days.
How many hours of sunshine does Tromsø get in July?
Tromsø averages 7.3 sunshine hours per day in July. It is the sunniest month with a climate score of 4.3/10.
What is the rainiest month in Tromsø?
December is the most unfavourable month with December has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Tromsø in July?
In July, overnight lows reach 10.0°C, while afternoon highs average 17.0°C.
Is Tromsø good in winter?
In winter (December-February), Tromsø scores 0.6/10 on average — Difficult period — prefer the peak season.. The best month overall remains July with a score of 4.3/10.
When should you avoid Tromsø?
December is the most difficult month to visit Tromsø, with December has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Tromsø in September?
The average UV index reaches 2 in September in Tromsø (low), with about 12.7h of daylight. No protection needed.