Longues-sur-Mer Temperature by Month

The average annual maximum temperature in Longues-sur-Mer, Lower Normandy, France is 16°C (61°F), with daytime highs ranging from 10°C (50°F) in January to 22°C (72°F) in August. This page covers monthly averages, day-night differences, and how Longues-sur-Mer compares to cities worldwide.

The weather in Longues-sur-Mer experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 15°C (59°F) in August to 4°C (39°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Longues-sur-Mer by month:

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. August, the warmest month of the year, receives 204 hours of sunshine.

The chart below shows the average temperature throughout the year:

Longues-sur-Mer's average annual maximum temperature is 16°C (61°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

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.

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 Longues-sur-Mer, January is the coolest month, with average highs of 10°C (50°F) and humidity around 86%, considered very 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 Longues-sur-Mer this rarely lasts long on the ground.

For more on Longues-sur-Mer's weather, including monthly rainfall, sunshine hours, and humidity, visit our Longues-sur-Mer climate page.