Best time to visit Liège
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 Liège
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Liège).
- 1
Liege Challenges EVG EVJF City Challenge team - 2
Self Guided Secrets Tour in Namur and Miss Nothing - 3
The Battle of the Bulge Experience - A day tour from Brussels - 4
Children's escape game in the city of Namur Marsupilami - 5
Private Beer Bike Tour in Rochefort in the Belgian Ardennes - 6
Premium beer bike with drinks and entertainment in Rochefort
Last refreshed 2026-06-26.
Similar climatesMaastricht98% · Düsseldorf96% · Bonn96%
Other destinations with the most-alike year-round climate to Liège (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 Liège'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 | 1–6 | 2 | 15 | 201 | 13.4 | 84% | 23 | 77 | 1 | Quiet | 3 |
| Feb | 3–9 | 5 | 16 | 196 | 12.3 | 76% | 27 | 105 | 1 | Quiet | 4 |
| Mar | 3–11 | 7 | 13 | 180 | 13.8 | 67% | 22 | 172 | 2 | Quiet | 5 |
| Apr | 5–14 | 10 | 11 | 149 | 13.5 | 61% | 20 | 206 | 3 | Quiet | 6 |
| May | 9–18 | 16 | 13 | 154 | 11.8 | 61% | 19 | 248 | 4 | Quiet | 7 |
| Jun | 13–22 | 21 | 11 | 131 | 11.9 | 60% | 18 | 253 | 5 | Quiet | 8 |
| Jul | 14–22 | 22 | 14 | 168 | 12.0 | 61% | 19 | 252 | 5 | Quiet | 7 |
| Aug | 15–23 | 23 | 15 | 162 | 10.8 | 63% | 18 | 244 | 5 | Peak | 7 |
| Sep | 12–20 | 20 | 12 | 136 | 11.3 | 67% | 17 | 203 | 3 | Peak | 8 |
| Oct | 9–16 | 14 | 15 | 158 | 10.5 | 76% | 22 | 143 | 2 | Moderate | 6 |
| Nov | 5–10 | 7 | 13 | 165 | 12.7 | 82% | 21 | 98 | 1 | Peak | 4 |
| Dec | 3–7 | 3 | 16 | 201 | 12.6 | 86% | 23 | 61 | 1 | Busy | 3 |
UV Index in Liège by Month
UV index in Liège peaks at 5 (moderate) in June, dropping to 1 (low) in January.
Best months in detail
June
8/1013–22°C · 11 rain days (131h) · 253 sun hours · 60% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
September
8/1012–20°C · 12 rain days (136h) · 203 sun hours · 67% humidity · Peak crowd · UV 3 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
July
7/1014–22°C · 14 rain days (168h) · 252 sun hours · 61% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
Every month
Show the other 9 months in detail
January
3/101–6°C (feels 2°C) · 15 rain days (201h) · 77 sun hours · 84% humidity · Quiet crowd · UV 1 (low)
February
4/103–9°C (feels 5°C) · 16 rain days (196h) · 105 sun hours · 76% humidity · Quiet crowd · UV 1 (low)
March
5/103–11°C (feels 7°C) · 13 rain days (180h) · 172 sun hours · 67% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
April
6/105–14°C (feels 10°C) · 11 rain days (149h) · 206 sun hours · 61% humidity · Quiet crowd · UV 3 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
May
7/109–18°C (feels 16°C) · 13 rain days (154h) · 248 sun hours · 61% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
August
7/1015–23°C · 15 rain days (162h) · 244 sun hours · 63% humidity · Peak crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)
October
6/109–16°C (feels 14°C) · 15 rain days (158h) · 143 sun hours · 76% humidity · Moderate crowd · UV 2 (low)
November
4/105–10°C (feels 7°C) · 13 rain days (165h) · 98 sun hours · 82% humidity · Peak crowd · UV 1 (low)
December
3/103–7°C (feels 3°C) · 16 rain days (201h) · 61 sun hours · 86% humidity · Busy crowd · UV 1 (low)
Frequently asked questions about visiting Liège
When is the best time to visit Liège?
June is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 13–22°C (11 rainy days). The top three months by score are June, September, July.
What is the worst time to visit Liège?
December is the lowest-scoring month (3/10). Typical conditions: 3–7°C (16 rainy days).
When are crowds lowest in Liège?
Search-interest seasonality (Google Trends 2021-2025) is lowest in January 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 Liège have good weather but fewer tourists?
June (climate 8/10, crowd index 4) and May (climate 7/10, crowd index 0) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Liège by month?
UV peaks at 5 (moderate) in June and is lowest in January at 1 (low). Monthly peak values: Jan 1, Feb 1, Mar 2, Apr 3, May 4, Jun 5, Jul 5, Aug 5, Sep 3, Oct 2, Nov 1, Dec 1.
What is the UV index in Liège in June?
June is the peak UV month in Liège, with a daily-peak UV index of 5 (moderate). Standard sun protection — sunglasses and light SPF — is recommended.
How high can UV get in Liège 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 5 (moderate), but the top 10% of days reach UV 7 (high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, April, May, June, July, August, September. Plan sun protection for the worst case, not the average.
Is air quality in Liège bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 6 months: January, February, March, April, November, December. The worst month is March with a typical-day mean of 12 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 25 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.