Best time to visit Mechelen
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 Mechelen
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Mechelen).
- 1
Private 2 Hour Walking Tour of Mechelen - 2
Lost Lanes and Secret Gardens Self Guided Audio Tour - 3
Mechelen Historic Walking Tour with Local Guide - 4
Dive Into Mechelen: A Guided Journey Through Belgium’s Hidden Gem - 5
Small-Group Chocolate Tour in Mechelen - 6
Beer and Chocolate Tasting in Mechelen with Werner Callebaut
Last refreshed 2026-06-28.
Similar climatesLeuven99% · Ghent98% · Brussels98%
Other destinations with the most-alike year-round climate to Mechelen (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 Mechelen'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 | 3 | 13 | 160 | 12.3 | 83% | 23 | 82 | 1 | Quiet | 3 |
| Feb | 4–10 | 6 | 14 | 158 | 11.3 | 76% | 27 | 104 | 1 | Quiet | 4 |
| Mar | 4–12 | 8 | 13 | 165 | 12.7 | 68% | 22 | 168 | 2 | Quiet | 5 |
| Apr | 5–14 | 11 | 10 | 130 | 13.0 | 60% | 20 | 213 | 3 | Quiet | 6 |
| May | 9–19 | 17 | 13 | 135 | 10.4 | 61% | 20 | 255 | 4 | Quiet | 7 |
| Jun | 13–23 | 22 | 11 | 118 | 10.7 | 59% | 18 | 260 | 5 | Quiet | 8 |
| Jul | 14–23 | 22 | 12 | 140 | 11.7 | 63% | 19 | 259 | 5 | Quiet | 8 |
| Aug | 15–24 | 24 | 14 | 130 | 9.3 | 62% | 18 | 247 | 5 | Peak | 8 |
| Sep | 13–21 | 21 | 12 | 121 | 10.1 | 66% | 18 | 205 | 3 | Busy | 8 |
| Oct | 10–16 | 14 | 14 | 144 | 10.3 | 76% | 22 | 140 | 2 | Moderate | 6 |
| Nov | 6–11 | 8 | 13 | 137 | 10.5 | 83% | 21 | 94 | 1 | Peak | 4 |
| Dec | 3–8 | 4 | 15 | 173 | 11.5 | 86% | 22 | 61 | — | Busy | 3 |
UV Index in Mechelen by Month
UV index in Mechelen peaks at 5 (moderate) in June, dropping to 0 (low) in December.
Best months in detail
June
8/1013–23°C · 11 rain days (118h) · 260 sun hours · 59% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
August
8/1015–24°C · 14 rain days (130h) · 247 sun hours · 62% humidity · Peak crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)
September
8/1013–21°C · 12 rain days (121h) · 205 sun hours · 66% humidity · Busy crowd · UV 3 (moderate)
Every month
Show the other 9 months in detail
January
3/102–7°C (feels 3°C) · 13 rain days (160h) · 82 sun hours · 83% humidity · Quiet crowd · UV 1 (low)
February
4/104–10°C (feels 6°C) · 14 rain days (158h) · 104 sun hours · 76% humidity · Quiet crowd · UV 1 (low)
March
5/104–12°C (feels 8°C) · 13 rain days (165h) · 168 sun hours · 68% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
April
6/105–14°C (feels 11°C) · 10 rain days (130h) · 213 sun hours · 60% humidity · Quiet crowd · UV 3 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
May
7/109–19°C (feels 17°C) · 13 rain days (135h) · 255 sun hours · 61% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
July
8/1014–23°C · 12 rain days (140h) · 259 sun hours · 63% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
October
6/1010–16°C (feels 14°C) · 14 rain days (144h) · 140 sun hours · 76% humidity · Moderate crowd · UV 2 (low)
November
4/106–11°C (feels 8°C) · 13 rain days (137h) · 94 sun hours · 83% humidity · Peak crowd · UV 1 (low)
December
3/103–8°C (feels 4°C) · 15 rain days (173h) · 61 sun hours · 86% humidity · Busy crowd
Frequently asked questions about visiting Mechelen
When is the best time to visit Mechelen?
June is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 13–23°C (11 rainy days). The top three months by score are June, August, September.
What is the worst time to visit Mechelen?
December is the lowest-scoring month (3/10). Typical conditions: 3–8°C (15 rainy days).
When are crowds lowest in Mechelen?
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 Mechelen have good weather but fewer tourists?
June (climate 8/10, crowd index 8) and July (climate 8/10, crowd index 11) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Mechelen by month?
UV peaks at 5 (moderate) in June and is lowest in December at 0 (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 —.
What is the UV index in Mechelen in June?
June is the peak UV month in Mechelen, with a daily-peak UV index of 5 (moderate). Standard sun protection — sunglasses and light SPF — is recommended.
How high can UV get in Mechelen 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. Plan sun protection for the worst case, not the average.
Is air quality in Mechelen bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 8 months: January, February, March, April, May, October, November, December. The worst month is March with a typical-day mean of 15 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 28 µg/m³ (unhealthy) 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.