Rognac is among the driest of mainland French towns: 532 mm of rain a year
The coldest hours of a January night bottom out at 3.6°C on average. September is the wettest month, July the driest. By warm days alone, it ranks hotter than 95% of mainland French towns. Expect about 20 frosty starts a year, nights when the air falls below freezing.
Figures from Météo-France’s Marignane station, 6.4 km south.
A year in Rognac at a glance
Each month’s typical high and low in °C, at the Marignane station.
What a year in Rognac feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Marignane.
About 532 mm of rain a year
September is the wettest month and July the driest. About 16 days a year bring 10 mm or more. 88th wettest of 108 towns of 2,500+ in Bouches-du-Rhône.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Marignane
20 frosts and 119 days of 25°C a year
On about 20 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 119 days a year reach 25°C, and 51 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Marignane: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.
The Météo-France station at Marignane
Marignane is 6.4 km south of Rognac. Every figure on this page is the station’s, not a measurement in Rognac itself.
| Station (Météo-France number) | Marignane (13054001) |
| Distance from the town | 6.4 km south |
| Station altitude | 6 m |
| Town altitude (its center) | 11 m |
| Period | 1991–2020 |
| Sunshine measured at | the same station |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Rognac compares
Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Bouches-du-Rhône.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Rognac | Marignane | 30.7°C | 3.6°C | 532 mm |
| Velaux 4.4 km | Salon-de-Provence | 30.7°C about the same | 1.8°C 1.8°C colder | 594 mm |
| Berre-l'Étang 5 km | same station | 30.7°C about the same | 3.6°C about the same | 532 mm |
| Vitrolles 6.1 km | same station | 30.7°C about the same | 3.6°C about the same | 532 mm |
| La Fare-les-Oliviers 6.9 km | Salon-de-Provence | 30.7°C about the same | 1.8°C 1.8°C colder | 594 mm |
| Coudoux 7.3 km | Salon-de-Provence | 30.7°C about the same | 1.8°C 1.8°C colder | 594 mm |
| Ventabren 7.8 km | Aix-en-Provence | 31.0°C about the same | 1.6°C 2°C colder | 609 mm |
Rognac weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Marignane station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 11.8°C | 3.6°C | 7.7°C | 47 mm | 148 |
| February | 12.8°C | 3.7°C | 8.3°C | 30 mm | 173 |
| March | 16.4°C | 6.5°C | 11.4°C | 30 mm | 235 |
| April | 19.3°C | 9.4°C | 14.3°C | 52 mm | 251 |
| May | 23.5°C | 13.3°C | 18.4°C | 38 mm | 299 |
| June | 27.9°C | 17.2°C | 22.5°C | 28 mm | 338 |
| July | 30.7°C | 19.7°C | 25.2°C | 11 mm | 372 |
| August | 30.5°C | 19.4°C | 24.9°C | 26 mm | 334 |
| September | 25.9°C | 15.9°C | 20.9°C | 82 mm | 264 |
| October | 21.3°C | 12.6°C | 17.0°C | 73 mm | 196 |
| November | 15.7°C | 7.7°C | 11.7°C | 76 mm | 151 |
| December | 12.4°C | 4.4°C | 8.4°C | 41 mm | 138 |
| Year | 20.7°C | 11.1°C | 15.9°C | 532 mm | 2,898 |
Where Rognac’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Marignane, 6.4 km away: statistics for 1991–2020.
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Sunshine: the nearest station with at least 10 years of sunshine records, Marignane, 6.4 km away.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Bouches-du-Rhône.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Rognac’s climate
How warm does Rognac get in summer?
July is the warmest month, with average highs of 30.7°C. About 119 days a year reach 25°C, more than 95% of mainland French towns, and about 51 reach 30°C.
How cold does Rognac get in winter?
January nights average 3.6°C. The air drops to 0°C or below on about 20 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Rognac get?
About 532 mm a year, less than almost every mainland French town. September is the wettest month (82 mm) and July the driest (11 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Marignane (6.4 km away), averages 2,898 hours of sunshine a year.
Are these figures for Rognac itself?
No: they are the normals of the Météo-France station matched to Rognac, Marignane, 6.4 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station MARIGNANE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Rognac →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.