April 25 is generally a great time to visit Helsinki. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 8°C weather. It's a quieter period for Helsinki, ideal for those who prefer unhurried sightseeing.
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Essential Travel Info for Helsinki
Currency
EUR
€ Euro
Language
Finnish
+1 more
Driving
Right side
Connect
Much of Helsinki is blanketed withWi-Fi ...
Safety
Very High Safety
GPI: 1.439
Helsinki Weather Forecast for April 25
"Mild & Comfortable. Expect average highs of 8°C. 16% chance of snow."
What to Wear in Helsinki in April
Based on historical data for April 25, Helsinki typically experiences temperatures between 2.3°C and 8°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (16% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Helsinki
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
8°C
Daytime Peak
Average Low
2.3°C
Nighttime Low
Feels Like
5.1°C
❄️ Slightly colder
Snow Chance
16%
Avg 0.7mm if it snows
Snowfall
0.1 cm
~16% chance
Pressure
1014.2 hPa
Medium volatility
Helsinki 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 15 for extended outdoor time
Type I-II
🔴 30 min to burn
Type III-IV
🟡 45 min to burn
Type V-VI
🟢 75 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
4°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
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 Finland
Flight Traffic
Quiet
37/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~226
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Helsinki
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:35
☀️ Noon
12:19
🌇 Sunset
20:02
⏱️ Daylight
15h 27m
Wind Speed
17.9 km/h
Gentle breeze
Sunshine
10.6 hrs
Direct Sun (Cloud-free)
Humidity
76%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Helsinki
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 Helsinki
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
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, Helsinki on April 25 averages 8°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 59/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Helsinki Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 22
7.7°C • 15% rain
Score
62
May 2
9°C • 20% rain
Score
62
May 1
8.7°C • 20% rain
Score
61
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 25) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Helsinki Worth Visiting on April 25?
Planning a trip to Helsinki on April 25? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 8°C with a 16% historical precipitation risk.
✈️ Travel Logistics: Approximately 226 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 8 vaccinations are recommended for Finland, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 5.2°C (polar plunge). Wave conditions are generally lake-like with heights around 0.38m.
📊 Historical Extremes: The hottest April 25 recorded in the last 30 years saw temperatures hit 10.5°C in 2023, while the coldest dropped to -0.2°C in 2020.