How often does weather delay flights at Nice-Côte d’Azur?
From January 2018 to September 2026, EUROCONTROL recorded arrival restrictions for weather (regulation reason W) at Nice-Côte d’Azur (NCE) on 140 of 3,195 days (4.4%). The worst month is October: 8% of days and 0.4 minutes of weather delay per arriving flight on average. Calmest: January, November, December (2% of days). Weather caused 14% 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 | 2% | 1% | 0.08 |
| February | 3% | 2% | 0.11 |
| March | 5% | 4% | 0.28 |
| April | 4% | 2% | 0.07 |
| May | 4% | 2% | 0.07 |
| June | 4% | 3% | 0.17 |
| July | 4% | 2% | 0.10 |
| August | 8% | 6% | 0.42 |
| September | 7% | 4% | 0.29 |
| October | 8% | 6% | 0.45 |
| November | 2% | 0% | 0.03 |
| December | 2% | 2% | 0.17 |
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 43 (12%), week 33 (11%), week 30 (10%).
Year by year
| Year | Days with weather restrictions | Minutes per arriving flight | Arrivals |
|---|---|---|---|
| 2018 | 18 of 365 | 0.16 | 71,777 |
| 2019 | 17 of 365 | 0.10 | 72,797 |
| 2020 | 3 of 366 | 0.09 | 33,166 |
| 2021 | 7 of 365 | 0.13 | 47,128 |
| 2022 | 11 of 365 | 0.08 | 67,572 |
| 2023 | 20 of 365 | 0.14 | 72,972 |
| 2024 | 26 of 366 | 0.28 | 74,442 |
| 2025 | 24 of 365 | 0.56 | 76,083 |
| 2026 (Jan–Sep) | 14 of 273 | 0.15 | 62,018 |
2020–2021: far fewer flights during the pandemic.
Weather among all causes
| Cause of arrival regulation | Share of delay minutes |
|---|---|
| Air traffic control capacity | 52% |
| Atc staffing | 25% |
| Weather | 14% |
| Aerodrome capacity | 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 | 41% | 3.7% | 11.1× |
| Fog or visibility under 800 m | 0.7% | 0.0% | — |
| Cloud base at or below 200 ft | 0.7% | 0.0% | — |
| Gusts of 30 knots or more | 16% | 2.4% | 7.0× |
| Crosswind of 20 knots or more on the best runway | 10% | 1.8% | — |
| Snow | 0.7% | 0.1% | — |
| Freezing rain or drizzle | 0.0% | 0.0% | — |
On 46% 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 3,195 days with full METAR coverage.
The heaviest days
| Date and reported weather | Weather delay, minutes | Arrivals | Minutes per arrival |
|---|---|---|---|
| 1 September 2025 Thunderstorm reported | 10,134 | 287 | 35.3 |
| 28 August 2025 Thunderstorm reported | 7,769 | 282 | 27.5 |
| 20 August 2025 Thunderstorm reported | 4,092 | 272 | 15.0 |
| 20 October 2023 Gusts of 30 knots or more; Crosswind of 20 knots or more on the best runway (gusts to 45 kt) | 3,319 | 220 | 15.1 |
| 23 October 2025 Gusts of 30 knots or more (gusts to 39 kt) | 3,235 | 205 | 15.8 |
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 LFMN, IATA NCE. Ranking by share of restriction days: 35 of 94 airports on this site.