Switzerland Interlaken Weather in May — Climate Guide
May in Interlaken is high
Interlaken Weather in May — Quick Answer
As of 2026- Avg temp
- 18° / 8°
- Rainfall
- 130mm · 14 days
- Crowds
- Moderate
As of 2026, Interlaken in May averages a high of 18°C and low of 8°C with 130mm of rain over about 14 days. Spring proper. Light layers + light jacket.
May is high for Interlaken.
Schynige Platte reopens mid-May. Lower mountain trails opening. Lauterbrunnen waterfalls peak from melting snow.
Travel score
Interlaken May Weather Stats
Avg High
18°C
Avg Low
8°C
Rainy Days
14
130mm total
Sunshine
7h
Daily avg
Humidity
70%
moderate
UV Index
6
High
Wind
8 km/h
Gusts 20
Sea Temp
10°C
swimming chilly
Crowds
Moderate
At attractions
May Sunrise & Sunset
Air Quality
PM2.5
10 μg/m³
PM10
18 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
18°C
Nighttime
8°C
Humidity and wind affect how the actual temperature feels.
Wind
8 km/h
Max gust 20 km/h
Activities Recommended for May
May Travel Pros & Cons
Pros
- 18°C pleasant
- Schynige Platte cog railway opens
- Lauterbrunnen waterfalls peak
- Pre-peak prices
Cons
- Rainy month (130mm)
- Some mountains still closed
- Variable weather
May Events & Festivals
- Schynige Platte cog railway reopens (mid-May)
- Mountain trails opening
Interlaken in May — Full Picture
Schynige Platte reopens mid-May. Lower mountain trails opening. Lauterbrunnen waterfalls peak from melting snow.
What to Wear & What to Pack
Spring proper. Light layers + light jacket.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current14°C
4.3°C
12.7/mo
Summer (Jun·Jul·Aug)
23.7°C
12°C
13/mo
Autumn (Sep·Oct·Nov)
13.7°C
5°C
11/mo
Winter (Dec·Jan·Feb)
4°C
-2.3°C
9.7/mo
Interlaken Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 3° | -3° | 10d·75mm | 3h | 80% | 1 | Busy | Peak | |
| 5° | -2° | 9d·65mm | 4h | 78% | 2 | Busy | Peak | |
| 10° | 1° | 11d·80mm | 5h | 75% | 3 | Moderate | Shoulder | |
| 14° | 4° | 13d·100mm | 6h | 73% | 5 | Quiet | Low season | |
| 18° | 8° | 14d·130mm | 7h | 70% | 6 | Moderate | Shoulder | |
| June (Best) | 22° | 11° | 14d·140mm | 7h | 72% | 8 | Busy | Peak |
| July (Best) | 25° | 13° | 12d·130mm | 8h | 72% | 9 | Very busy | Peak |
| August (Best) | 24° | 12° | 13d·130mm | 7h | 75% | 8 | Very busy | Peak |
| September (Best) | 20° | 10° | 11d·100mm | 6h | 78% | 6 | Busy | Peak |
| 14° | 5° | 10d·85mm | 5h | 80% | 4 | Moderate | Shoulder | |
| 7° | 0° | 12d·100mm | 3h | 80% | 2 | Quiet | Low season | |
| 4° | -2° | 10d·75mm | 3h | 80% | 1 | Busy | Peak |
View Other Months
Interlaken May Hotel Picks
Frequently Asked Questions
Is May a good time to visit Interlaken?
Interlaken in May is high. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Interlaken in May?
Interlaken May averages a high of 18°C and a low of 8°C.
Does it rain much in Interlaken in May?
Interlaken May averages 130mm of rainfall over about 14 rainy days.
What should I wear in Interlaken in May?
Spring proper. Light layers + light jacket.
What time are sunrise and sunset in Interlaken in May?
Interlaken May sunrise is 05:55 and sunset is 20:55, with 15h of daylight.
What's the air quality like in Interlaken in May?
Interlaken May air quality (AQI) averages 30, rated Good. PM2.5 averages 10μg/m³.
What activities are recommended in Interlaken in May?
In May, Interlaken is great for Schynige Platte (newly open), Lauterbrunnen waterfalls peak, Jungfraujoch.
Is May peak season in Interlaken?
Interlaken May crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Interlaken
View Other Months
Planning a May trip to Interlaken?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.