In the Ile de France region December and January generally see average maximums of about 8°C and average minimums of 2°C to 4°C.It regularly falls below freezing at night and frosts are common.
July and August see the hottest temperatures and it remains warm and sunny through until the end of September.
North Atlantic Coast The west coast of France has a temperate maritime climate.
Due to the flat, low-lying topography of the large coastal plain the moderating effects of the ocean reach far inland.
The most rain falls in late summer/early autumn; summer could be considered the 'rainy season', but is generally drier than the southeast of England.
Once you move inland toward the Ile de France region, the temperature range begins to widen.