Chatou Temperature by Month
Chatou in Ile de France, France sees significant seasonal temperature differences, with daytime highs between 8°C (46°F) in February and 26°C (79°F) in August, averaging 17°C (63°F) annually. Explore the full monthly breakdown below.
Chatou Monthly Temperatures
In Chatou, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 14°C (57°F) in August to 2°C (36°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Chatou 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 214 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Chatou 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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Chatou vs World: Temperature Compared
Chatou's average annual maximum temperature is 17°C (63°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.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Chatou?
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 Chatou, February is the coolest month, with average highs of 9°C (48°F) and humidity around 78% — considered high. In August, the warmest month, temperatures average 26°C (79°F) with 71% 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 Chatou this rarely lasts long on the ground.
For more on Chatou's weather — including monthly rainfall, sunshine hours, and humidity — visit our Chatou climate page.
