Colors of the following climate diagrams: France French Antarctic Lands
Daily maximum temperatures
The highest daytime temperatures in France are reached in July with an average of 26.0 °C. The coldest month, on the other hand, is January, with an average of just 7.8 °C. In French Antarctic Lands, February is the warmest month, with 15.0 °C. There, it is coolest in July with an average of 8.4 °C.
Night time lows
At night, it cools down to varying degrees depending on the country and altitude. In France, temperatures drop as low as 1.7 °C in January. The warmest nights are in July at 15.1 °C. In French Antarctic Lands, it is coolest at night in August at 3.1 °C and warmest in February at 8.4 °C. This corresponds to a cooling of 6.1 to 10.9 °C in France and 5.2 to 6.7 °C in French Antarctic Lands.
The humidity of the air depends to a large extent on the air temperature. The warmer the air, the more water it can absorb. At a temperature of 25°C it is 23 grams per cubic meter, at 30 degrees it is already 26 grams. Therefore, the air humidity is given as a relative value to the temperature-dependent maximum amount. It becomes unpleasant when high humidity is combined with high temperatures.
Humidex is an approximate, sensed temperature calculated on the basis of air temperature, dew point and humidity. It was developed in 1965 by the Canadian meteorologists J. M. Masterton and F. A. Richardson. Since the wind speed is ignored here, it is not very meaningful in areas below approx. 15°C. Above that, it is more reliable, since at higher temperatures humidity plays a greater role than wind.
Rain days per month
By definition, a rain day is a day on which at least 0.1 liters of precipitation per m² fall. This corresponds to a 1 square meter puddle in which the water stands 0.1 mm high — insofar as the water does not seep away or evaporate. So it does not have to rain all day long. January brings the most rainy days (11.0) in France. With an average of only 6.8 days, September is the friendliest. In French Antarctic Lands, it rains most often in July with 15.3 days.
Precipitation amount per day
Depending on the season and the location of a country, the wind brings a varying amount of water with it. As a rule, the water evaporating in the oceans is absorbed and then transported inland. The greatest amount of rain (hail or dew are also forms of precipitation) in France occurs in November, when about 2.5 liters per square meter fall per day. In French Antarctic Lands, the average amount of precipitation ranges from 2.9 liters per day in October to 4.2 in May. However, these are average values. If you consider that there are only 15.2 rainy days in French Antarctic Lands in May, each of them accounts for about 8.2 liters.
Sunshine hours per day
With 2,008 hours of sunshine per year, France is in the lead. The most hours of sunshine (8.4 per day) are in July. French Antarctic Lands falls into second place with only 1,460 hours. There the sun is visible in June for only 2.4 hours per day, so not hidden behind clouds.
Hours of daylight
The length of a day varies throughout the year and depends on the distance from the equator. In December, the day in France is only 8.7 hours long. In June, on the other hand, it is 15.8 hours. In French Antarctic Lands, it is 8.3 hours in June and 16.2 in December.