May 27 is generally a great time to visit Oslo. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 18°C weather. Oslo is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Oslo
Currency
NOK
kr Norwegian krone
Language
Norwegian Nynorsk
+2 more
Driving
Right side
Connect
Most of Oslo is covered by 5G. Most of t...
Safety
Very High Safety
GPI: 1.465
Oslo Weather Forecast for May 27
"Mild & Comfortable. Expect average highs of 17.5°C. 32% chance of rain."
What to Wear in Oslo in May
Based on historical data for May 27, Oslo typically experiences temperatures between 8.7°C and 17.5°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 32% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Oslo
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
17.5°C
Daytime Peak
Average Low
8.7°C
Nighttime Low
Feels Like
17.5°C
🌤️ Feels accurate
Rain Chance
32%
Avg 2mm if it rains
Cloud Cover
60%
Overcast
Pressure
1013.7 hPa
High volatility
Oslo Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
03:00 - 10:00
16:00 - 21:00
Type I-II
🔴 24 min to burn
Type III-IV
🟡 36 min to burn
Type V-VI
🟢 60 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
11.5°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Norway
Flight Traffic
High
95/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~348
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Oslo
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
03:16
☀️ Noon
12:15
🌇 Sunset
21:14
⏱️ Daylight
17h 57m
Wind Speed
15.3 km/h
Gentle breeze
Sunshine
12.3 hrs
Direct Sun (Cloud-free)
Humidity
68%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Oslo
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Oslo
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Oslo on May 27 averages 17.5°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 87/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Oslo Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
June 1
19.4°C • 19% rain
Score
97
June 2
19.3°C • 21% rain
Score
97
June 3
19.4°C • 23% rain
Score
96
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
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📍 Is Oslo Worth Visiting on May 27?
Planning a trip to Oslo on May 27? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 17.5°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 348 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Norway, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 14.3°C (polar plunge). Wave conditions are generally lake-like with heights around 0.29m.
📊 Historical Extremes: The hottest May 27 recorded in the last 30 years saw temperatures hit 27.8°C in 2018, while the coldest dropped to 4.6°C in 2022.