Best time to visit Lausanne
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 Lausanne
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Lausanne).
- 1
Lausanne Challenges EVG EVJF City Challenge team - 2
The Mysteries of Lausanne Switzerland - 3
Lausanne Private Walking Tour with a Local Guide - 4
Layers of Lausanne: A Self-Guided Tour - 5
Private Gruyères Tour Including Cheese and Chocolate Factory Visit from Montreux - 6
Taxi, Airport Transfer and Limousine Service in Switzerland
Last refreshed 2026-06-15.
Similar climatesGeneva95% · Annecy94% · Bern94%
Other destinations with the most-alike year-round climate to Lausanne (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 Lausanne'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 | 0–5 | 1 | 13 | 172 | 13.2 | 73% | 18 | 124 | 1 | Quiet | 4 |
| Feb | 1–8 | 5 | 11 | 137 | 12.5 | 70% | 19 | 152 | 2 | Quiet | 5 |
| Mar | 2–11 | 7 | 12 | 141 | 11.8 | 65% | 17 | 205 | 3 | Quiet | 5 |
| Apr | 5–14 | 11 | 10 | 139 | 13.9 | 61% | 18 | 227 | 4 | Quiet | 6 |
| May | 10–18 | 16 | 14 | 173 | 12.4 | 65% | 18 | 253 | 5 | Quiet | 6 |
| Jun | 15–23 | 23 | 15 | 154 | 10.3 | 61% | 16 | 274 | 7 | Quiet | 7 |
| Jul | 16–25 | 25 | 13 | 127 | 9.8 | 56% | 16 | 297 | 7 | Quiet | 8 |
| Aug | 16–25 | 25 | 10 | 104 | 10.4 | 56% | 15 | 266 | 6 | Peak | 9 |
| Sep | 13–21 | 20 | 10 | 131 | 13.1 | 65% | 16 | 220 | 4 | Busy | 8 |
| Oct | 9–16 | 14 | 11 | 136 | 12.4 | 73% | 16 | 180 | 3 | Moderate | 6 |
| Nov | 4–10 | 7 | 13 | 156 | 12.0 | 76% | 18 | 133 | 1 | Peak | 5 |
| Dec | 1–6 | 2 | 17 | 223 | 13.1 | 79% | 16 | 103 | 1 | Busy | 3 |
UV Index in Lausanne by Month
UV index in Lausanne peaks at 7 (high) in July, dropping to 1 (low) in December. June, July, August have high UV — SPF 30+ and sunglasses recommended.
Best months in detail
August
9/1016–25°C · 10 rain days (104h) · 266 sun hours · 56% humidity · Peak crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
July
8/1016–25°C · 13 rain days (127h) · 297 sun hours · 56% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)
September
8/1013–21°C · 10 rain days (131h) · 220 sun hours · 65% humidity · Busy crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (high)
Every month
Show the other 9 months in detail
January
4/100–5°C (feels 1°C) · 13 rain days (172h) · 124 sun hours · 73% humidity · Quiet crowd · UV 1 (low)
February
5/101–8°C (feels 5°C) · 11 rain days (137h) · 152 sun hours · 70% humidity · Quiet crowd · UV 2 (low)
March
5/102–11°C (feels 7°C) · 12 rain days (141h) · 205 sun hours · 65% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
April
6/105–14°C (feels 11°C) · 10 rain days (139h) · 227 sun hours · 61% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (high)
May
6/1010–18°C (feels 16°C) · 14 rain days (173h) · 253 sun hours · 65% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
June
7/1015–23°C · 15 rain days (154h) · 274 sun hours · 61% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)
October
6/109–16°C (feels 14°C) · 11 rain days (136h) · 180 sun hours · 73% humidity · Moderate crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
November
5/104–10°C (feels 7°C) · 13 rain days (156h) · 133 sun hours · 76% humidity · Peak crowd · UV 1 (low)
December
3/101–6°C (feels 2°C) · 17 rain days (223h) · 103 sun hours · 79% humidity · Busy crowd · UV 1 (low)
Frequently asked questions about visiting Lausanne
When is the best time to visit Lausanne?
August is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 16–25°C (10 rainy days). The top three months by score are August, July, September.
What is the worst time to visit Lausanne?
December is the lowest-scoring month (3/10). Typical conditions: 1–6°C (17 rainy days).
When are crowds lowest in Lausanne?
Search-interest seasonality (Google Trends 2021-2025) is lowest in March and peaks in November. 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 Lausanne have good weather but fewer tourists?
July (climate 8/10, crowd index 35) and June (climate 7/10, crowd index 19) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Lausanne by month?
UV peaks at 7 (high) in July and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 4, May 5, Jun 7, Jul 7, Aug 6, Sep 4, Oct 3, Nov 1, Dec 1.
What is the UV index in Lausanne in July?
July is the peak UV month in Lausanne, with a daily-peak UV index of 7 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.
How high can UV get in Lausanne 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 7 (high), but the top 10% of days reach UV 8 (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.
Is air quality in Lausanne bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 3 months: February, March, November. The worst month is February with a typical-day mean of 11 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 22 µg/m³ (unhealthy for sensitive) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.