April 21 is generally a great time to visit Interlaken. While there is a slight chance of rain (28%), showers are usually brief. Expect comfortable 14°C weather. Take advantage of the off-peak calm in Interlaken to see the sights without the usual crowds. Note: April 21 is Easter Monday in Interlaken, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Interlaken
Currency
CHF
Fr. Swiss franc
Language
French
+3 more
Driving
Right side
Connect
As of March 2022 formobile devices, Inte...
Safety
Very High Safety
GPI: 1.357
Interlaken Weather Forecast for April 21
"Mild & Comfortable. Expect average highs of 13.6°C. 28% chance of snow."
What to Wear in Interlaken in April
Based on historical data for April 21, Interlaken typically experiences temperatures between 3.3°C and 13.6°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. With a 28% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Interlaken
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
13.6°C
Daytime Peak
Average Low
3.3°C
Nighttime Low
Feels Like
13.3°C
🌤️ Feels accurate
Snow Chance
28%
Avg 1.8mm if it snows
Snowfall
0.4 cm
~28% chance
Pressure
1014.7 hPa
Medium volatility
Interlaken 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
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 21 min to burn
Type III-IV
🟡 32 min to burn
Type V-VI
🟢 53 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
9.3°C
Dry air
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
Easter Monday
Flight Traffic
Quiet
39/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~210
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Interlaken
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:32
☀️ Noon
12:28
🌇 Sunset
19:24
⏱️ Daylight
13h 52m
Wind Speed
9 km/h
Light breeze
Sunshine
10.1 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Interlaken
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Interlaken
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Interlaken on April 21 averages 13.6°C with a 28% precipitation probability. Wedding/Outdoor Event Score: 81/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Interlaken Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
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📍 Is Interlaken Worth Visiting on April 21?
Planning a trip to Interlaken on April 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 13.6°C with a 28% historical precipitation risk.
🎉 Local Event: The date coincides with Easter Monday, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 210 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for Switzerland, including COVID-19.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 24.4°C in 2018, while the coldest dropped to 0.3°C in 2017.