Climate comparison



All information: France
All information: Reunion
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Climate zoneTemperate zoneTropics
Latitudes51° 5' N to 41° 35' N20° 53' S to 21° 23' S
Distance to equator4,600 - 5,700 km2,300 - 2,400 km
Annual valuesFranceReunion
Ø Daytime maximum temperature16.80 °C28 °C
Ø Daily low temperature7.9 °C21.20 °C
Ø Water temperature15.40 °C25.30 °C
Ø Humidity78 %74 %
Precipitation734 mm1,617 mm
Rain days106.8 days122.4 days
Hours of sunshine2,008 hrs.2,555 hrs.

Colors of the following climate diagrams:

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 Reunion, February is the warmest month, with 30.5 °C. There, it is coolest in July with an average of 25.4 °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 Reunion, it is coolest at night in August at 18.3 °C and warmest in February at 23.9 °C. This corresponds to a cooling of 6.1 to 10.9 °C in France and 6.5 to 7.2 °C in Reunion.

Water temperatures


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 Reunion, it rains most often in January with 15.1 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 Reunion, the average amount of precipitation ranges from 1.5 liters per day in October to 10.1 in January. However, these are average values. If you consider that there are only 15.1 rainy days in Reunion in January, each of them accounts for about 20.2 liters.

Sunshine hours per day

With 2,555 hours of sunshine per year, Reunion is in the lead. The most hours of sunshine (7.4 per day) are in December. France falls into second place with only 2,008 hours. There the sun is visible in January for only 2.6 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 Reunion, it is 10.9 hours in June and 13.4 in December.
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