Switzerland Interlaken Weather in July — Climate Guide
July in Interlaken is very-high
Interlaken Weather in July — Quick Answer
As of 2026- Avg temp
- 25° / 13°
- Rainfall
- 130mm · 12 days
- Crowds
- Very busy
As of 2026, Interlaken in July averages a high of 25°C and low of 13°C with 130mm of rain over about 12 days. Summer. T-shirt + shorts + UV.
July is very-high for Interlaken.
Peak summer + crowds. All mountains accessible. Lake swimming. Long daylight. Hotels triple. Pre-book everything 2-3 months ahead.
Travel score
Interlaken July Weather Stats
Avg High
25°C
Avg Low
13°C
Rainy Days
12
130mm total
Sunshine
8h
Daily avg
Humidity
72%
moderate
UV Index
9
Very high
Wind
7 km/h
Gusts 18
Sea Temp
17°C
lake swimming peak
Crowds
Very busy
At attractions
July Sunrise & Sunset
Air Quality
PM2.5
10 μg/m³
PM10
18 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
25°C
Nighttime
13°C
Humidity and wind affect how the actual temperature feels.
Wind
7 km/h
Max gust 18 km/h
Activities Recommended for July
July Travel Pros & Cons
Pros
- 25°C warm summer
- Long daylight 15h
- All mountains operating
- Lake swimming
Cons
- Hotels triple in price
- Crowds peak
- Jungfraujoch tickets sell out
- 130mm rain still
July Events & Festivals
- Peak summer + European holidays
Interlaken in July — Full Picture
Peak summer + crowds. All mountains accessible. Lake swimming. Long daylight. Hotels triple. Pre-book everything 2-3 months ahead.
What to Wear & What to Pack
Summer. T-shirt + shorts + UV.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
14°C
4.3°C
12.7/mo
Summer (Jun·Jul·Aug)
Current23.7°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 July Hotel Picks
Frequently Asked Questions
Is July a good time to visit Interlaken?
Interlaken in July is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Interlaken in July?
Interlaken July averages a high of 25°C and a low of 13°C.
Does it rain much in Interlaken in July?
Interlaken July averages 130mm of rainfall over about 12 rainy days.
What should I wear in Interlaken in July?
Summer. T-shirt + shorts + UV.
What time are sunrise and sunset in Interlaken in July?
Interlaken July sunrise is 05:45 and sunset is 21:30, with 15h 45min of daylight.
What's the air quality like in Interlaken in July?
Interlaken July air quality (AQI) averages 30, rated Good. PM2.5 averages 10μg/m³.
What activities are recommended in Interlaken in July?
In July, Interlaken is great for Jungfraujoch (pre-book), Lauterbrunnen + Mürren, Grindelwald.
Is July peak season in Interlaken?
Interlaken July crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Interlaken
View Other Months
Planning a July 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.