La Rochelle, on France’s Atlantic coast, enjoys a temperate maritime climate with warm, sunny summers and mild, damp winters. The city is renowned for its abundant sunshine – among the highest outside the Mediterranean – gentle sea breezes, and moderate rainfall year-round. With distinct, pleasant seasons and a lively harbour atmosphere, La Rochelle attracts visitors seeking both relaxation and adventure.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
La Rochelle’s climate is shaped by its coastal location and the influence of the Gulf Stream, resulting in mild temperature swings and a generally pleasant atmosphere. Summers (June–August) are warm and sunny, with average highs of 22–26°C and lows of 13–17°C. July and August are the warmest and sunniest months, offering up to 10–11 hours of sunshine daily and sea temperatures reaching 19–20°C. Rainfall is relatively low in summer, with July typically seeing around 44 mm over 10 days, and gentle breezes from the Atlantic keep conditions comfortable. The city’s microclimate ensures more sunshine than most non-Mediterranean French cities.
Winters (December–February) are mild and damp, with highs of 9–11°C and lows of 3–6°C. Rainfall is more frequent, especially in November and December, the wettest months with up to 94–98 mm over 15–17 days. Snow is very rare, and the sea remains cool at 10–12°C. Spring (March–May) and autumn (September–November) are transitional, with mild to warm temperatures (15–21°C), moderate rainfall, and vibrant city life. Spring offers blooming gardens and fewer crowds, while autumn brings colourful foliage and harvest events. Winds are generally light to moderate, averaging 13–17 km/h, but can be brisk during storms. Annual precipitation averages 800–900 mm, and La Rochelle enjoys around 2,000–2,300 hours of sunshine per year, making it one of France’s sunniest coastal cities outside the Mediterranean.
| Average climate data for La Rochelle, France | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 14 | 15 | 16 | 18 | 20 | 23 | 24 | 24 | 24 | 21 | 17 | 13 | 24 |
| Average minimum temperature (°C) | 7 | 7 | 8 | 8 | 10 | 12 | 13 | 13 | 14 | 13 | 10 | 7 | 7 |
| Average precipitation (mm) | 26 | 30 | 25 | 7 | 8 | 2 | 1 | 2 | 2 | 8 | 18 | 26 | 154 |
| Average rainfall days (days) | 9 | 7 | 11 | 7 | 5 | 1 | 2 | 1 | 3 | 4 | 6 | 10 | 67 |
| Average snowfall (mm) | 0 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 9 |
| Average snowfall days (days) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Average relative humidity (%) | 74 | 73 | 75 | 73 | 72 | 67 | 69 | 70 | 67 | 64 | 70 | 72 | 70 |
| Average wind speed (km/h) | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 9 | 10 |
| Average water temperature (°C) | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 13 |
| Average daily daylight hours (h) | 9 | 10 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 11 | 10 | 9 | 12 |
| Average daily sunshine hours (h) | 6 | 6 | 7 | 10 | 10 | 11 | 12 | 11 | 11 | 7 | 6 | 5 | 9 |
| Average cloud coverage (%) | 33 | 31 | 36 | 26 | 24 | 12 | 10 | 11 | 11 | 17 | 25 | 33 | 22 |
| Average UV index | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | 3 | 4 |
The best time to visit La Rochelle is from May to September, when temperatures are warmest (18–26°C), rainfall is lowest, and the city is lively with festivals, outdoor dining, and beach activities. July and August are especially ideal for sun and sea, though they are also the busiest months – book early for the best experience.
The least favourable time to visit La Rochelle is from November to February, when rainfall is highest, days are shortest, and cooler, damp weather can limit outdoor activities. However, winter offers a peaceful atmosphere, lower prices, and the city’s historic charm without the crowds.
La Rochelle has a temperate maritime climate with warm, sunny summers and mild, damp winters. Rain falls year-round, but summers are drier and sunnier, while winters are milder and wetter. Snow is very rare.
The best time to visit is from May to September, when the weather is warm, rainfall is low, and the city is lively with festivals and outdoor activities. July and August offer the most sunshine and beach-friendly conditions.
Rain falls year-round, with the wettest months being November and December. Summer is drier, with July and August seeing the least rainfall. Annual precipitation averages 800–900 mm, spread fairly evenly across the year.
Summer highs in La Rochelle typically reach 22–26°C, with July and August being the warmest months. Heatwaves above 30°C are rare, and gentle sea breezes help keep conditions comfortable.
The Atlantic is warmest from July to September, reaching 19–20°C. Swimming is possible for hardy swimmers during these months, though the water is cooler than the Mediterranean.
Pack layers for cool mornings and evenings, a rain jacket for showers, and sun protection for summer. Even in summer, a jumper or light jacket is useful for breezy evenings by the sea.
Winds in La Rochelle are generally light to moderate, averaging 13–17 km/h, but can be brisk during storms. The city’s coastal location means breezy conditions are common, especially in autumn and winter.
The warmest month, with the highest average maximum temperature, is September (24.3 °C). The month with the lowest average maximum temperature is December (13.4 °C). Overall, the average maximum temperature over the whole year is 19.1 °C.
The month with the highest average minimum temperature is September (13.7 °C). The coldest month, with the lowest average minimum temperature, is January (7.2 °C). Overall, the average minimum temperature over the whole year is 10.2 °C.
The month with the highest average water temperature is September (14 °C). The month with the lowest average water temperature is April (11.7 °C). Overall, the average water temperature over the whole year is 12.6 °C.
The wettest month, with the highest amount of precipitation, is February (30.1 mm). The driest month, with the least amount of precipitation, is July (1 mm). Over the whole year there are 154.5 mm of rainfall on average.
The month with the most days of rain is March (11.3 days). The month with the fewest days of rain is August (1.4 days). Over the whole year there are 67.1 days of rain on average.
The month with the most snowfall is March (4 mm). The months with the least snowfall are January, April, May, June, July, August, September, October and November (0 mm). Over the whole year there are 9 mm of snowfall on average.
The month with the most days of snowfall is February (0.3 days). The months with the fewest days of snowfall are May, June and November (0 days). Over the whole year there are 1.2 days of snowfall on average.
The month with the highest average relative humidity is March (75.2 %). The month with the lowest average relative humidity is October (64.5 %). The overall average relative humidity over the whole year is 70.4 %.
The windiest month, with the highest average wind speed, is May (11.5 km/h). The calmest month, with the lowest average wind speed, is November (8.4 km/h). The overall average wind speed over the whole year is 9.8 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is March (36 %). The month with the clearest skies, so the lowest cloud coverage, is July (9.9 %). Over the whole year there is an average cloud coverage of 22.5 %.
The month with the longest days, so the most daylight, is June (Average daylight: 14.1 h). The month with the shortest days, so the least daylight, is December (Average daylight: 9.1 h). Over the whole year there are 11.8 h of daylight per day on average.
The month with the most sunshine per day is July (Average sunshine: 12.1 h). The month with the least sunshine per day is December (Average sunshine: 5 h). Over the whole year there are 8.6 h of sunlight per day on average.
The months with the highest average UV index are April, May, June, July, August and September (UV index: 5). The months with the lowest average UV index are January, November and December (UV index: 3). Over the whole year the average UV index is 4.2.
