A month of November 2024 in gray and black, last month won the not very sparkling prize of grayest November on record. We might say that there is no reason to be surprised when in Breton, November is “miz du”, or black month. But the last few weeks have been even worse than usual!
“The month of November 2024 was a very dark month which will go down in the annals of weather. Minimum sunshine records have been broken on the side of Rennes and Vannes, with a deficit of 55% compared to a typical month of November”, notes Sébastien Decaux, forecaster at Weather Brittany. But it was better in the west, in any case the Breton tip limited the damage “with a deficit of 25% in Brest and 24% in Quimper, the sun only shone for 60 hours in Quimper and 62 in Lorient”.
Anticyclone in November, gray outside the room
Whose fault is it? To an anticyclone ! “We had a first decade of November which was very anticyclonic and an anticyclone in autumn is never synonymous with sunshine. We had the illustration of this with a lot of low clouds, stratus clouds which remained in place almost throughout the throughout the day during the first decade Then, the weather was relatively unsettled, which was therefore detrimental to the sunshine.”
But there was these bonus days, in Finistère. You couldn't have missed them because the lower Bretons were gushing about them on all social networks, relaying this satellite image of clouds everywhere, except for a gap above Finistère. “It happened on November 1 and November 7”reports Sébastien Decaux of Météo Bretagne, “with impressive images where the cloudiness was maximum over almost the entire region, except for Finistère: due to a slightly milder air at altitude, the stratus was quite low, so much so that the Monts d'Arrée were emerged With the sunshine, the air warmed up A foehn effect was added, the wind was a little more drying and Finistère found itself on several occasions actually facing. rather clear skies compared to the rest of the region.”
Less sun, cold in sleep
Another highlight of the month of November, the softness of the air in Finistèrewith +1, even +1.5°C. The sweetness continues at the beginning of December, with, for the opening of the first box of the Advent calendar, a surprise in the form of winter mildness: 16.9°C in Vannes-Sené, a monthly record broken. It has been since 1953 that it has not been this mild in Groix (16°C), or as mild as in Sarzeau.
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