Hardly any mainland French towns log more warm days than Cassis
Nights in January average 2.4°C. By rainfall alone, it ranks drier than 83% of mainland French towns. Expect the heaviest rain in November and the lightest in July. Gritters and ice scrapers earn their keep on roughly 36 nights a year below 0°C.
These are the figures of Météo-France’s Aubagne station, 11 km north-east.
A year in Cassis at a glance
Each month’s typical high and low in °C, at the Aubagne station.
What a year in Cassis feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Aubagne.
About 648 mm of rain a year
November is the wettest month and July the driest. About 19 days a year bring 10 mm or more. 22nd wettest of 108 towns of 2,500+ in Bouches-du-Rhône.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Aix-en-Provence
36 frosts and 126 days of 25°C a year
On about 36 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 126 days a year reach 25°C, and 61 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Aubagne: 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 Aubagne
Aubagne is 11 km north-east of Cassis. Every figure on this page is the station’s, not a measurement in Cassis itself.
| Station (Météo-France number) | Aubagne (13005003) |
| Distance from the town | 11 km north-east |
| Station altitude | 130 m |
| Town altitude (its center) | 59 m |
| Period | 1991–2020 |
| Nearest station of any kind | 3 km |
| Sunshine measured at | Aix-en-Provence, 36 km away |
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 Cassis 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 |
|---|---|---|---|---|
| Cassis | Aubagne | 31.3°C | 2.4°C | 648 mm |
| Carnoux-en-Provence 4.3 km | Cassis | 29.1°C 2.2°C cooler | 4.8°C 2.4°C milder | 615 mm |
| Roquefort-la-Bédoule 5.2 km | Cassis | 29.1°C 2.2°C cooler | 4.8°C 2.4°C milder | 615 mm |
| La Penne-sur-Huveaune 6.8 km | same station | 31.3°C about the same | 2.4°C about the same | 648 mm |
| La Ciotat 6.9 km | Le Castellet | 30.8°C 0.5°C cooler | 2.9°C 0.5°C milder | 607 mm |
| Ceyreste 7.6 km | same station | 31.3°C about the same | 2.4°C about the same | 648 mm |
| Aubagne 8.2 km | same station | 31.3°C about the same | 2.4°C about the same | 648 mm |
Cassis weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Aubagne station; sunshine at Aix-en-Provence.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 12.9°C | 2.4°C | 7.6°C | 69 mm | 151 |
| February | 13.7°C | 2.0°C | 7.9°C | 39 mm | 177 |
| March | 17.0°C | 4.4°C | 10.7°C | 37 mm | 233 |
| April | 19.6°C | 7.0°C | 13.3°C | 59 mm | 244 |
| May | 24.0°C | 10.6°C | 17.3°C | 45 mm | 297 |
| June | 28.5°C | 14.2°C | 21.3°C | 30 mm | 331 |
| July | 31.3°C | 16.5°C | 23.9°C | 11 mm | 370 |
| August | 31.3°C | 16.5°C | 23.9°C | 25 mm | 332 |
| September | 26.5°C | 13.3°C | 19.9°C | 78 mm | 257 |
| October | 21.8°C | 10.4°C | 16.1°C | 94 mm | 190 |
| November | 16.4°C | 6.1°C | 11.3°C | 95 mm | 152 |
| December | 13.4°C | 3.2°C | 8.3°C | 66 mm | 141 |
| Year | 21.4°C | 8.9°C | 15.1°C | 648 mm | 2,873 |
Where Cassis’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Aubagne, 11 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, Aix-en-Provence, 36 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 Cassis’s climate
How warm does Cassis get in summer?
July is the warmest month, with average highs of 31.3°C. About 126 days a year reach 25°C, more than 98% of mainland French towns, and about 61 reach 30°C.
How cold does Cassis get in winter?
February nights average 2.0°C. The air drops to 0°C or below on about 36 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Cassis get?
About 648 mm a year, less than 83% of mainland French towns. November is the wettest month (95 mm) and July the driest (11 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Aix-en-Provence (36 km away), averages 2,873 hours of sunshine a year.
Are these figures for Cassis itself?
No: they are the normals of the Météo-France station matched to Cassis, Aubagne, 11 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 AUBAGNE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Cassis →
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.