Bois-Guillaume Temperature by Month
The average annual maximum temperature in Bois-Guillaume, Upper Normandy, France is 16°C (61°F), with daytime highs ranging from 8°C (46°F) in February to 24°C (75°F) in August. This page covers monthly averages, day-night differences, and how Bois-Guillaume compares to cities worldwide.
Bois-Guillaume Monthly Temperatures
Visitors to Bois-Guillaume will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range 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 Bois-Guillaume 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 195 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Bois-Guillaume 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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Bois-Guillaume vs World: Temperature Compared
Bois-Guillaume'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.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Bois-Guillaume?
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 Bois-Guillaume, February is the coolest month, with average highs of 9°C (48°F) and humidity around 86% — considered very high. In August, the warmest month, temperatures average 24°C (75°F) with 80% humidity — conditions that feel 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 Bois-Guillaume this rarely lasts long on the ground.
For more on Bois-Guillaume's weather — including monthly rainfall, sunshine hours, and humidity — visit our Bois-Guillaume climate page.
