Yffiniac Temperature by Month
Yffiniac in Brittany, France sees significant seasonal temperature differences, with daytime highs between 10°C (50°F) in February and 23°C (73°F) in August, averaging 16°C (61°F) annually. Explore the full monthly breakdown below.
Yffiniac Monthly Temperatures
The climate in Yffiniac is dynamic, ranging widely from chilly in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 14°C (57°F) in August to 4°C (39°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Yffiniac 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 199 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Yffiniac 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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Yffiniac vs World: Temperature Compared
Yffiniac'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.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
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 Yffiniac?
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 Yffiniac, February is the coolest month, with average highs of 11°C (52°F) and humidity around 81% — 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 Yffiniac this rarely lasts long on the ground.
For more on Yffiniac's weather — including monthly rainfall, sunshine hours, and humidity — visit our Yffiniac climate page.
