La Rochelle Temperature by Month
La Rochelle in Poitou-Charentes, France sees significant seasonal temperature differences, with daytime highs between 11°C (52°F) in February and 26°C (79°F) in August, averaging 18°C (64°F) annually. Explore the full monthly breakdown below.
La Rochelle Monthly Temperatures
The weather in La Rochelle experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 17°C (63°F) in August to 5°C (41°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in La Rochelle by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 261 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: La Rochelle vs France
The map below shows the annual temperature across France. You can also select individual months if you want to compare a specific time of year.
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La Rochelle vs World: Temperature Compared
La Rochelle's average annual maximum temperature is 18°C (64°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in La Rochelle?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In La Rochelle, February is the coolest month, with average highs of 12°C (54°F) and humidity around 84% — considered very high. In August, the warmest month, temperatures average 26°C (79°F) with 77% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in La Rochelle this rarely lasts long on the ground.
For more on La Rochelle's weather — including monthly rainfall, sunshine hours, and humidity — visit our La Rochelle climate page.
