Photo: Olivier Cleynen · CC BY 4.0La Grande-Motte gets more days of 25 degrees or more than 91% of mainland French towns
Midwinter brings lows of about 3.3°C. The gap between a January night and a July afternoon is 26°C. Only about 21 nights a year bring a frost, fewer than in 89% of mainland French towns. Frost greets about 21 mornings a year, so leave time to clear the car.
These are the figures of Météo-France’s Montpellier-Aéroport station, 9.9 km west.
A year in La Grande-Motte at a glance
Each month’s typical high and low in °C, at the Montpellier-Aéroport station.
What a year in La Grande-Motte feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Montpellier-Aéroport.
About 639 mm of rain a year
October is the wettest month and July the driest. About 18 days a year bring 10 mm or more. 31st wettest of 96 towns of 2,500+ in Hérault.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Montpellier-Aéroport
21 frosts and 108 days of 25°C a year
On about 21 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 108 days a year reach 25°C, and 34 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Montpellier-Aéroport: 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 Montpellier-Aéroport
Montpellier-Aéroport is 9.9 km west of La Grande-Motte. Every figure on this page is the station’s, not a measurement in La Grande-Motte itself.
| Station (Météo-France number) | Montpellier-Aéroport (34154001) |
| Distance from the town | 9.9 km west |
| Station altitude | 1 m |
| Town altitude (its center) | 3 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 La Grande-Motte 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 Hérault.
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 |
|---|---|---|---|---|
| La Grande-Motte | Montpellier-Aéroport | 29.5°C | 3.3°C | 639 mm |
| Le Grau-du-Roi 5.6 km | Aigues-Mortes | 29.4°C about the same | 4.3°C 1°C milder | 553 mm |
| Mauguio 8.1 km | same station | 29.5°C about the same | 3.3°C about the same | 639 mm |
| Aigues-Mortes 8.8 km | Aigues-Mortes | 29.4°C about the same | 4.3°C 1°C milder | 553 mm |
| Mudaison 9.9 km | same station | 29.5°C about the same | 3.3°C about the same | 639 mm |
| Lansargues 10 km | Marsillargues | 30.7°C 1.2°C warmer | 2.3°C 1°C colder | 618 mm |
| Saint-Just 11 km | Marsillargues | 30.7°C 1.2°C warmer | 2.3°C 1°C colder | 618 mm |
La Grande-Motte weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Montpellier-Aéroport station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 12.0°C | 3.3°C | 7.6°C | 56 mm | 146 |
| February | 13.1°C | 3.5°C | 8.3°C | 39 mm | 170 |
| March | 16.4°C | 6.4°C | 11.4°C | 42 mm | 219 |
| April | 18.7°C | 9.2°C | 13.9°C | 56 mm | 229 |
| May | 22.6°C | 12.9°C | 17.8°C | 44 mm | 271 |
| June | 26.9°C | 16.7°C | 21.8°C | 33 mm | 316 |
| July | 29.5°C | 19.3°C | 24.4°C | 17 mm | 345 |
| August | 29.3°C | 19.0°C | 24.1°C | 36 mm | 305 |
| September | 25.2°C | 15.2°C | 20.2°C | 87 mm | 247 |
| October | 20.7°C | 12.2°C | 16.4°C | 95 mm | 176 |
| November | 15.7°C | 7.4°C | 11.6°C | 78 mm | 146 |
| December | 12.5°C | 4.1°C | 8.3°C | 57 mm | 137 |
| Year | 20.2°C | 10.8°C | 15.5°C | 639 mm | 2,705 |
Where La Grande-Motte’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Montpellier-Aéroport, 9.9 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, Montpellier-Aéroport, 9.9 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 Hérault.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about La Grande-Motte’s climate
How warm does La Grande-Motte get in summer?
July is the warmest month, with average highs of 29.5°C. About 108 days a year reach 25°C, more than 91% of mainland French towns, and about 34 reach 30°C.
How cold does La Grande-Motte get in winter?
January nights average 3.3°C. The air drops to 0°C or below on about 21 nights a year, and about 0 days a year stay below freezing all day.
How much rain does La Grande-Motte get?
About 639 mm a year, less than 85% of mainland French towns. October is the wettest month (95 mm) and July the driest (17 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Montpellier-Aéroport (9.9 km away), averages 2,705 hours of sunshine a year.
Are these figures for La Grande-Motte itself?
No: they are the normals of the Météo-France station matched to La Grande-Motte, Montpellier-Aéroport, 9.9 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 MONTPELLIER-AEROPORT, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for La Grande-Motte →
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.