Best time to visit Lucerne
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 Lucerne
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Lucerne).
- 1
Swiss BBQ & Hike Experience – with Mount Pilatus Ticket - 2
City Tour Plus Lucerne by Etuktuk - 3
Luzern Half-Day Private City Walk incl. Lake Cruise - 4
Private Transfer: Lucerne to Zurich Airport ZRH by Business Car - 5
Trip from Lucerne to Interlaken, Grindelwald and Lauterbrunnen - 6
Day tour to Grindelwald, Interlaken and Lauterbrunnen
Last refreshed 2026-05-27.
Similar climatesSalzburg95% · Zurich95% · Interlaken93%
Other destinations with the most-alike year-round climate to Lucerne (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 Lucerne'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 | 3 | 13 | 179 | 13.8 | 77% | 8 | 121 | 1 | Quiet | 4 |
| Feb | 1–9 | 7 | 13 | 155 | 11.9 | 69% | 10 | 140 | 1 | Quiet | 5 |
| Mar | 2–11 | 9 | 13 | 169 | 13.0 | 64% | 9 | 184 | 3 | Quiet | 5 |
| Apr | 4–14 | 13 | 13 | 197 | 15.2 | 63% | 9 | 209 | 4 | Quiet | 5 |
| May | 9–18 | 18 | 18 | 228 | 12.7 | 66% | 9 | 220 | 5 | Quiet | 5 |
| Jun | 14–23 | 24 | 16 | 183 | 11.4 | 64% | 9 | 256 | 6 | Moderate | 7 |
| Jul | 16–25 | 26 | 17 | 212 | 12.5 | 65% | 9 | 272 | 6 | Moderate | 6 |
| Aug | 16–24 | 26 | 14 | 180 | 12.9 | 67% | 8 | 242 | 6 | Peak | 7 |
| Sep | 13–21 | 21 | 13 | 170 | 13.1 | 71% | 8 | 209 | 4 | Moderate | 7 |
| Oct | 9–16 | 16 | 13 | 164 | 12.6 | 76% | 8 | 165 | 2 | Quiet | 6 |
| Nov | 4–9 | 7 | 15 | 188 | 12.5 | 83% | 8 | 117 | 1 | Busy | 4 |
| Dec | 1–6 | 3 | 17 | 220 | 12.9 | 83% | 8 | 94 | 1 | Moderate | 3 |
UV Index in Lucerne by Month
UV index in Lucerne 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
June
7/1014–23°C (feels 24°C) · 16 rain days (183h) · 256 sun hours · 64% humidity · Moderate crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
August
7/1016–24°C (feels 26°C) · 14 rain days (180h) · 242 sun hours · 67% humidity · Peak crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 8 (high)
September
7/1013–21°C · 13 rain days (170h) · 209 sun hours · 71% humidity · Moderate crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
Every month
Show the other 9 months in detail
January
4/100–5°C (feels 3°C) · 13 rain days (179h) · 121 sun hours · 77% humidity · Quiet crowd · UV 1 (low)
February
5/101–9°C (feels 7°C) · 13 rain days (155h) · 140 sun hours · 69% humidity · Quiet crowd · UV 1 (low)
March
5/102–11°C (feels 9°C) · 13 rain days (169h) · 184 sun hours · 64% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
April
5/104–14°C (feels 13°C) · 13 rain days (197h) · 209 sun hours · 63% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
May
5/109–18°C · 18 rain days (228h) · 220 sun hours · 66% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
July
6/1016–25°C (feels 26°C) · 17 rain days (212h) · 272 sun hours · 65% humidity · Moderate crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (high)
October
6/109–16°C · 13 rain days (164h) · 165 sun hours · 76% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 4 (moderate)
November
4/104–9°C (feels 7°C) · 15 rain days (188h) · 117 sun hours · 83% humidity · Busy crowd · UV 1 (low)
December
3/101–6°C (feels 3°C) · 17 rain days (220h) · 94 sun hours · 83% humidity · Moderate crowd · UV 1 (low)
Frequently asked questions about visiting Lucerne
When is the best time to visit Lucerne?
June is the highest-scoring month (7/10 on the Holiday Climate Index). Typical conditions: 14–23°C (16 rainy days). The top three months by score are June, August, September.
What is the worst time to visit Lucerne?
December is the lowest-scoring month (3/10). Typical conditions: 1–6°C (17 rainy days).
When are crowds lowest in Lucerne?
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 Lucerne have good weather but fewer tourists?
June (climate 7/10, crowd index 42) and July (climate 6/10, crowd index 46) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Lucerne by month?
UV peaks at 6 (high) in June and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 1, Mar 3, Apr 4, May 5, Jun 6, Jul 6, Aug 6, Sep 4, Oct 2, Nov 1, Dec 1.
What is the UV index in Lucerne in June?
June is the peak UV month in Lucerne, 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 Lucerne 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 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 Lucerne bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 6 months: January, February, March, October, November, December. The worst month is February with a typical-day mean of 11 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 20 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.