Weather in Nantes is set to change notably on Saturday, August 22, as a cool start gives way to more cloud cover and stronger winds. Early morning temperatures will hover around 13°C, with only a few clouds overhead. As the hours pass, thicker high clouds will move in, briefly dropping the temperature to 12°C before it climbs to 18°C by late morning. Light northerly winds will start at 5 km/h, with gusts up to 15 km/h. They will then intensify and shift northeast, reaching sustained speeds of 10 km/h and gusts up to 25 km/h. Humidity will steadily decrease through the morning. Regional August climate figures for nearby Nort-sur-Erdre offer useful seasonal context: Atlas of Seasons lists typical highs of about 25°C, lows near 13°C and average winds around 13 km/h. Those monthly norms put the forecast’s temperature range and moderate sustained winds within the area’s usual late-summer pattern.
By afternoon, the sky will grow increasingly overcast. High clouds will filter the sunlight before giving way to full cloud cover that persists until evening. East-northeasterly winds will remain moderate, at around 10 km/h, but are expected to strengthen further by 5 p.m., reaching 15 km/h with gusts between 25 and 30 km/h. Temperatures will rise steadily, peaking between 20°C and 25°C and making for a mild but breezy afternoon. August is typically the warmest month in the regional climate profile, with an average high near 25°C. The forecast points to a mild day, not an exceptional heat event.
As evening sets in, the afternoon pattern will continue, with some variation. Temperatures will initially hold at 25°C before gradually dropping to 21°C by the end of the night. The sky will be heavily overcast at first, briefly clear to partly cloudy conditions mid-evening, then cloud over again before clearing more decisively. Winds will remain from the northeast to east-northeast, blowing at 15 km/h with gusts up to 30 km/h. As the night progresses, they will ease to 10 km/h, with gusts between 20 and 25 km/h.
Overnight, temperatures will continue falling from 21°C to 17°C, especially toward dawn. Winds will stay moderate at 15 km/h, but gusts could reach 35 km/h in the middle of the night before subsiding to 25 km/h. The wind direction will fluctuate between northeast and east-northeast. The night will begin very cloudy, then the sky will shift to high cloud cover and become mostly cloudy. Humidity will rise significantly as the night advances. Gusts differ from sustained wind speeds: the latter are expected to stay around 10-15 km/h for much of the period.
In the future to Sunday, the increased humidity overnight will carry into the morning, which will begin under a veil of high clouds. Temperatures will remain cool, between 16°C and 17°C, with a northeast wind near 15 km/h and gusts up to 30 km/h. As the day unfolds, skies will grow very cloudy and eventually overcast, while temperatures are expected to climb to 27°C. Winds will turn east-northeast, strengthening to 20-25 km/h, with gusts potentially reaching 45 km/h.
Such weather shifts are common in the region during late August. Earlier this month, other parts of France experienced abrupt temperature drops and heavy rainfall, as detailed in this report on sudden weather changes across Spain. Ouest-France reports that the current Nantes forecast is based on data from Weather'n'co and reflects the typical variability of late summer in western France. Local hourly forecasts track temperature and cloud cover, as well as precipitation and wind speed. They also distinguish sustained winds from gusts and report wind direction.
Nantes, near the Atlantic coast, often sees rapid weather changes due to maritime influences. Shifting winds and cloud cover can affect daily routines, especially for people planning outdoor activities or travel. Residents are advised to check local forecasts, as wind gusts and temperature swings may affect comfort and safety, particularly for vulnerable groups. The expected overnight rise in humidity could also bring a damp start to Sunday, making flexible plans useful during this transitional period.
