Port-Louis Temperature by Month
Port-Louis in Brittany, France sees moderate seasonal temperature shifts, with daytime highs between 11°C (52°F) in February and 21°C (70°F) in August, averaging 16°C (61°F) annually. Explore the full monthly breakdown below.
Port-Louis Monthly Temperatures
Port-Louis experiences balanced seasonal shifts, with noticeable but moderate temperature variations. At night, minimum temperatures range from 16°C (61°F) in August to 6°C (43°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Port-Louis by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Port-Louis 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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Port-Louis vs World: Temperature Compared
Port-Louis'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:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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 Port-Louis this rarely lasts long on the ground.
For more on Port-Louis's weather — including monthly rainfall, sunshine hours, and humidity — visit our Port-Louis climate page.
