The month in detail
What to expect in September
Autumn marks the end of peak season in Oslo. Temperatures drop (16°C) and rain returns (35% of days). Expect rain on 35% of days — a light raincoat in the bag is recommended.
September ranks 5 out of 12 months in Oslo. Compared to August: −4°C daytime, −1.6h of sun per day.
This month's conditions
What it's like in September
UV index
3 · low
no protection needed
Feels like
dry air
10°
Daylight
12.5h of daylight
Air quality
good
AQI 23
Compare
Is September the right month?
The best month in Oslo is June (7.7/10), 3.3 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 · Oslo
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Oslo
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 beach holiday.
Country · Norway
🗣️LanguageNorwegian
💶CurrencyNorwegian Krone (kr)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘVery expensive · 5/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trendData unavailable
🔥Hottest monthJune · 21°C
❄️Coolest monthJanuary · 1°C
🌧️Rainiest month ⓘJuly · 38%
🏖️ Beach holiday
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Oslo ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
NorwayTemperate oceanic climate with a 7.7 → 0.7 gap between best and worst month. 10 years of ERA5 data to choose by project.
59.91°N · 10.75°E
Questions
Frequently asked questions
What is the best time to visit Oslo?
June is the best month with 21.0°C highs, 12.0°C lows, 8.0h of sunshine and 36.0% rainy days. The months of June & July offer comparable conditions.
How many hours of sunshine does Oslo get in June?
Oslo averages 8.0 sunshine hours per day in June. It is the sunniest month with a climate score of 7.2/10.
What is the rainiest month in Oslo?
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 Oslo in June?
In June, overnight lows reach 12.0°C, while afternoon highs average 21.0°C.
Is Oslo good in winter?
In winter (December-February), Oslo scores 0.8/10 on average — Difficult period — prefer the peak season.. The best month overall remains June with a score of 7.2/10.
When should you avoid Oslo?
December is the most difficult month to visit Oslo, 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 Oslo in September?
The average UV index reaches 3 in September in Oslo (low), with about 12.5h of daylight. No protection needed.