July 21 is generally a great time to visit Oslo. While there is a slight chance of rain (25%), showers are usually brief. Expect comfortable 22°C weather. As it's peak season for Oslo, we recommend booking your stay well in advance to secure the best rates.
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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 July 21
"Mild & Comfortable. Expect average highs of 22.3°C. 25% chance of rain."
What to Wear in Oslo in July
Based on historical data for July 21, Oslo typically experiences temperatures between 14.3°C and 22.3°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (25% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Oslo
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
22.3°C
Daytime Peak
Average Low
14.3°C
Nighttime Low
Feels Like
22.7°C
☀️ Feels accurate
Rain Chance
25%
Avg 1.9mm if it rains
Cloud Cover
63%
Overcast
Pressure
1011.6 hPa
Medium volatility
Oslo Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 82% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
03:00 - 10:00
16:00 - 21:00
Type I-II
🔴 26 min to burn
Type III-IV
🟡 39 min to burn
Type V-VI
🟢 65 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
17.2°C
Noticeable
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
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Norway
Flight Traffic
High
87/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~317
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Oslo
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
03:34
☀️ Noon
12:24
🌇 Sunset
21:14
⏱️ Daylight
17h 40m
Wind Speed
13 km/h
Gentle breeze
Sunshine
11.7 hrs
Direct Sun (Cloud-free)
Humidity
73%
Humid / Damp
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
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
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 July 21 averages 22.3°C with a 25% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— 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
July 17
21.7°C • 27% rain
Score
97
July 18
21.9°C • 25% rain
Score
97
July 19
21.9°C • 24% rain
Score
97
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (July 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Oslo Worth Visiting on July 21?
Planning a trip to Oslo on July 21? 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 22.3°C with a 25% historical precipitation risk.
✈️ Travel Logistics: Approximately 317 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 20.4°C (refreshing tonic). Wave conditions are generally lake-like with heights around 0.18m.
📊 Historical Extremes: The hottest July 21 recorded in the last 30 years saw temperatures hit 27.3°C in 2022, while the coldest dropped to 10.3°C in 2023.