How often does weather delay flights at Beauvais-Tillé?
From January 2018 to September 2026, EUROCONTROL recorded arrival restrictions for weather (regulation reason W) at Beauvais-Tillé (BVA) on 81 of 3,150 days (2.6%). The worst month is December: 5% of days and 0.1 minutes of weather delay per arriving flight on average. Calmest: July (0% of days). Weather caused 32% of all arrival-regulation delay minutes at this airport. Source: EUROCONTROL.
Month by month
| Month | Days with weather restrictions | Days with ≥ 1 min per arrival | Minutes per arriving flight |
|---|---|---|---|
| January | 4% | 2% | 0.09 |
| February | 4% | 1% | 0.04 |
| March | 3% | 1% | 0.05 |
| April | 4% | 2% | 0.05 |
| May | 3% | 2% | 0.08 |
| June | 1% | 1% | 0.04 |
| July | 0% | 0% | 0.00 |
| August | 1% | 0% | 0.01 |
| September | 1% | 0% | 0.01 |
| October | 2% | 1% | 0.07 |
| November | 4% | 2% | 0.18 |
| December | 5% | 2% | 0.09 |
Share of days on which EUROCONTROL's network manager limited arrivals because of weather at or around the airport (regulation reason W), 2018–2026. Minutes per arriving flight = weather-regulation delay ÷ all arrivals that month. Worst weeks of the year: week 50 (11%), week 46 (9%), week 44 (7%).
Year by year
| Year | Days with weather restrictions | Minutes per arriving flight | Arrivals |
|---|---|---|---|
| 2018 | 7 of 364 | 0.04 | 11,874 |
| 2019 | 14 of 365 | 0.08 | 12,317 |
| 2020 | 4 of 322 | 0.02 | 5,282 |
| 2021 | 4 of 365 | 0.01 | 8,184 |
| 2022 | 5 of 365 | 0.01 | 15,164 |
| 2023 | 4 of 365 | 0.08 | 17,404 |
| 2024 | 9 of 366 | 0.04 | 19,961 |
| 2025 | 18 of 365 | 0.05 | 20,126 |
| 2026 (Jan–Sep) | 16 of 273 | 0.12 | 14,548 |
2020–2021: far fewer flights during the pandemic.
Weather among all causes
| Cause of arrival regulation | Share of delay minutes |
|---|---|
| Weather | 32% |
| Atc staffing | 24% |
| Atc equipment | 23% |
| Industrial action (atc) | 14% |
| Other | 5% |
Causes with at least 2% of all arrival-regulation delay minutes, 2018–2026.
What the weather was like on those days
| In the airport's weather reports (METAR, 05–21 UTC) | Days with weather restrictions | Other days | Ratio |
|---|---|---|---|
| Thunderstorm reported | 7.4% | 4.5% | 1.7× |
| Fog or visibility under 800 m | 26% | 7.5% | 3.4× |
| Cloud base at or below 200 ft | 21% | 4.0% | 5.3× |
| Gusts of 30 knots or more | 8.6% | 6.1% | 1.4× |
| Crosswind of 20 knots or more on the best runway | 6.2% | 2.3% | 2.6× |
| Snow | 6.2% | 2.2% | 2.8× |
| Freezing rain or drizzle | 1.2% | 0.4% | — |
On 47% of the restriction days none of these showed up in the airport's own reports: restrictions are also set on forecasts, for weather on the approach or elsewhere in the area, and when the wind direction forces a less efficient runway layout. The weather is what came with the delays, not proof of their cause. Based on 3,150 days with full METAR coverage.
The heaviest days
| Date and reported weather | Weather delay, minutes | Arrivals | Minutes per arrival |
|---|---|---|---|
| 2 November 2023 Gusts of 30 knots or more; Crosswind of 20 knots or more on the best runway (gusts to 50 kt) | 1,052 | 28 | 37.6 |
| 22 October 2019 Fog or visibility under 800 m; Cloud base at or below 200 ft | 373 | 39 | 9.6 |
| 27 June 2026 Thunderstorm reported; Gusts of 30 knots or more (gusts to 37 kt) | 339 | 53 | 6.4 |
| 4 January 2026 none of these in the airport's METAR | 306 | 57 | 5.4 |
| 8 March 2026 Fog or visibility under 800 m; Cloud base at or below 200 ft | 263 | 56 | 4.7 |
What these numbers cover
- Only delays from air traffic flow management (ATFM) regulations on arrivals are counted — not all delays, not departures, and not cancellations or diversions. A day with restrictions does not mean every flight was late.
- Airport ICAO code LFOB, IATA BVA. Ranking by share of restriction days: 50 of 94 airports on this site.