Best time to visit Interlaken
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Tours in Interlaken
17 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Interlaken).
- 1
Interlaken sightseeing: Lauterbrunnen, Brienz, Interlaken - 2
Relaxed Kayak Experience on Lake Brienz - 3
Canyoning Interlaken with OUTDOOR - 4
River Rafting Lütschine in Bernese Oberland - 5
Alpine Dairy Farm Visit and Cheese Making Workshop - 6
Canyoning Experience Grimsel from Interlaken - 7
Canyoning Chli Schliere with OUTDOOR (Advanced) - 8
Snowshoe Adventure in the Swiss Alps - 9
Winter Jetboat Ride - 10
Night Sledding and Fondue Feast Interlaken - 11
Interlaken to Lauterbrunnen E bike Tour Valley of 72 Waterfalls - 12
Historic Interlaken: Exclusive Private Tour with a Local - 13
Mt. Schilthorn & Mürren Private Day Trip from Interlaken - 14
Tandem Paragliding Experience from Interlaken - 15
Mürren: Paragliding over the Lauterbrunnen Valley - 16
Tandem Paragliding Experience with Transport from Interlaken - 17
Winter Kayak Tour of the Turquoise Lake Brienz
Last refreshed 2026-05-27.
Similar climatesLucerne93% · Salzburg92% · Hallstatt91%
Other destinations with the most-alike year-round climate to Interlaken (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Interlaken's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 2–7 | 5 | 15 | 205 | 13.7 | 71% | 6 | 135 | 1 | Quiet | 4 |
| Feb | 3–10 | 8 | 13 | 174 | 13.4 | 64% | 7 | 150 | 2 | Quiet | 5 |
| Mar | 4–12 | 10 | 14 | 185 | 13.2 | 61% | 7 | 196 | 3 | Quiet | 5 |
| Apr | 5–14 | 13 | 15 | 218 | 14.5 | 61% | 7 | 218 | 5 | Moderate | 5 |
| May | 9–18 | 18 | 20 | 265 | 13.3 | 67% | 7 | 227 | 5 | Moderate | 5 |
| Jun | 14–23 | 24 | 18 | 219 | 12.2 | 65% | 7 | 259 | 6 | Moderate | 6 |
| Jul | 16–25 | 26 | 17 | 218 | 12.8 | 65% | 8 | 283 | 6 | Busy | 6 |
| Aug | 16–25 | 26 | 14 | 198 | 14.1 | 64% | 7 | 254 | 6 | Peak | 7 |
| Sep | 14–21 | 22 | 15 | 193 | 12.9 | 68% | 7 | 217 | 4 | Busy | 6 |
| Oct | 10–18 | 18 | 14 | 177 | 12.6 | 67% | 7 | 178 | 3 | Quiet | 6 |
| Nov | 6–11 | 10 | 14 | 196 | 14.0 | 73% | 6 | 131 | 1 | Moderate | 5 |
| Dec | 2–8 | 6 | 16 | 240 | 15.0 | 75% | 6 | 110 | 1 | Moderate | 3 |
UV Index in Interlaken by Month
UV index in Interlaken peaks at 6 (high) in June, dropping to 1 (low) in December. June, July have high UV — SPF 30+ and sunglasses recommended.
Best months in detail
August
7/1016–25°C (feels 26°C) · 14 rain days (198h) · 254 sun hours · 64% humidity · Peak crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 8 (high)
September
6/1014–21°C · 15 rain days (193h) · 217 sun hours · 68% humidity · Busy crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (high)
October
6/1010–18°C · 14 rain days (177h) · 178 sun hours · 67% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
Every month
Show the other 9 months in detail
January
4/102–7°C (feels 5°C) · 15 rain days (205h) · 135 sun hours · 71% humidity · Quiet crowd · UV 1 (low)
February
5/103–10°C (feels 8°C) · 13 rain days (174h) · 150 sun hours · 64% humidity · Quiet crowd · UV 2 (low)
March
5/104–12°C (feels 10°C) · 14 rain days (185h) · 196 sun hours · 61% humidity · Quiet crowd · UV 3 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
April
5/105–14°C (feels 13°C) · 15 rain days (218h) · 218 sun hours · 61% humidity · Moderate crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
May
5/109–18°C · 20 rain days (265h) · 227 sun hours · 67% humidity · Moderate crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
June
6/1014–23°C (feels 24°C) · 18 rain days (219h) · 259 sun hours · 65% humidity · Moderate crowd · UV 6 (high) · sunniest 1 in 10 days reach 9 (very high)
July
6/1016–25°C (feels 26°C) · 17 rain days (218h) · 283 sun hours · 65% humidity · Busy crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
November
5/106–11°C (feels 10°C) · 14 rain days (196h) · 131 sun hours · 73% humidity · Moderate crowd · UV 1 (low)
December
3/102–8°C (feels 6°C) · 16 rain days (240h) · 110 sun hours · 75% humidity · Moderate crowd · UV 1 (low)
Frequently asked questions about visiting Interlaken
When is the best time to visit Interlaken?
August is the highest-scoring month (7/10 on the Holiday Climate Index). Typical conditions: 16–25°C (14 rainy days). The top three months by score are August, September, October.
What is the worst time to visit Interlaken?
December is the lowest-scoring month (3/10). Typical conditions: 2–8°C (16 rainy days).
When are crowds lowest in Interlaken?
Search-interest seasonality (Google Trends 2021-2025) is lowest in January and peaks in August. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Interlaken have good weather but fewer tourists?
October (climate 6/10, crowd index 36) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Interlaken by month?
UV peaks at 6 (high) in June and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 5, May 5, Jun 6, Jul 6, Aug 6, Sep 4, Oct 3, Nov 1, Dec 1.
What is the UV index in Interlaken in June?
June is the peak UV month in Interlaken, with a daily-peak UV index of 6 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.
How high can UV get in Interlaken on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. June is the worst case: typical days average UV 6 (high), but the top 10% of days reach UV 9 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, April, May, June, July, August, September, October. Plan sun protection for the worst case, not the average.