Climate of the Gironde

The Climat of the the Gironde is of type oceanic. It is characterized by soft winters and rather hot estival temperatures. The average temperatures in the Gironde vary from 5 to 7 °C in January and of 19 with 21°C in summer. 3 different zones are distinguished: the littoral, very soft fringe and where the amplitudes are less, the forest landaise, where one records strong amplitudes day laborers and the back moderate country.

One on average raises 15 to 20 days per annum with Mérignac where the temperature exceeds the 30°C, ten on the coast and between 25 and 30 days in forest. The frosts, under-shelter, are very few: 32 days on average per annum of freezing in Mérignac, against a dozen on the coast. All the covered zone by the forest, because of sandy, can know, in any season, very low or very high temperatures. The forest zone thus knows a number of day with freezing, and strong heat (with-less 30,0°C) higher than in the remainder of the department.

The rains are relatively frequent and more abundant in winter and autumn. On the other hand the summer and often also the beginning of the autumn is drier: 50 millimetres for July, 100 millimetres for January. The annual office plurality of precipitations varies, of is in west, of 700 with a little more than 1.000 Misters In any season, the littoral band is not very rainy and very moderate whereas the forest interior knows the most abundant pluviometry. Average annual precipitations, calculated over period 1982/1991, are higher with Lacanau, near to the Océan, with 935 mm that with Coutras 768 Misters has Bordeaux, the annual total of precipitations reaches 820 mm, one counts 150 days rainy there.

The dominant winds blow there of south-west in the North-West. The second important sector is the south-east, more marked in the oriental party of the department.

The sunning is about 2.000 hours in Bordeaux, it is particularly important on the Bassin of Arcachon and the littoral around 2.200 hours.

From one year on the other one notes variations of precipitations, and temperatures etc. It is about intra-annual variability. Sometimes, this variability becomes sometimes remarkable. Thus, some climatic events were sometimes particularly outstanding. One can quote particularly: The dryness of 1921; the dryness of the years 1942 with 1949; great cold and snow in February 1956; cold of winter 1962/1963, great colds of January 1985 and 1987; the dryness which began at the time of the summer 1988 to finish in 1992; the storm of December 27th, 1999, and more recently the dryness of 2002 with 2006 with two years outstanding (very hot spring, be historically hot in 2003. Remarkable dryness in 2005).

Some remarkable climatic values on the department

Lower temperatures: captieux in January 1985 -21,0°C; -16,4°C with Mérignac in January 1985; -16,2°C with Floirac in January 1881, -15,7°C with Cazaux in January 1985, -12,4°C in January 1985 with the Cape-Tag.

Higher temperatures: +43,2°C with Donnezac; +42,0°C with Cazaux; +41,6°C with Saint-Savin; +40,7°C with Mérignac in August 2003, 40,0°C with Cazaux and the Cape-Tag in June - 1968.

Stronger gusts of wind: 176 km/h with the Semaphore of the Cape-Tag in February 1996; 166 km/h with the Cape-Tag in October 1984; 158,4 km/h with Mérignac the 15-7-2003; 140 km/h with Cazaux in December 1999.

Heights of snow: of 50 cm with 1m of snow in February 1956 (50cm with Mérignac; 90cm with Saint-émilion)

The coldest year (in Mérignac): 1956 with 11.2°C of average temperature.

The hottest years (in Mérignac): 1997 and 2003 with 14.9°C of average temperature.

External bond

Weather Climate of Bordeaux: http://www.meteo-bordeaux.fr.
Gironde Weather: http://www.meteo-gironde.net

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