Climate Chart of Nantes, France

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

The monthly mean temperature is lowest at 6.6 °C in January, while the warmest monthly mean is 20.5 °C in July. These are averages for each month, not daytime highs; individual days can depart from the monthly pattern. Across the calendar-month means, the unweighted mean is 13.1 °C, offering a broad summary without implying that every month or day sits near that figure.

Rain

Mean daily rainfall reaches its monthly high of 3.07 mm/day in December and its low of 1.25 mm/day in July. The values are daily averages, not monthly rainfall totals, and they do not show how often rain falls or how it is distributed among days. The unweighted mean across the monthly averages is 2.19 mm/day, a useful broad reference rather than a guarantee of typical conditions on a particular date.

Sunshine

Daily sunshine averages peak at 11.98 hours/day in July and are lowest at 4.06 hours/day in January. This indicates a substantial contrast in average sunshine duration across the year, but sunshine hours are not the same as day length and do not guarantee clear skies on an individual day. The unweighted mean of the monthly averages is 8.21 hours/day.

Snow

The highest monthly mean daily snowfall is 0.27 mm/day in January; the unweighted mean across monthly averages is 0.05 mm/day. These recorded averages describe snowfall amounts, not the number of snowy days, snow depth or duration of snow cover, and they cannot establish conditions for skiing.

Best Travel Time Guide for Nantes, France: Ideal Seasons and Weather Insights

For visitors prioritising cooler monthly averages, January is the relevant reference, with a mean temperature of 6.6 °C; this is not a daytime maximum, so check forecasts for the dates and activities planned. Those seeking warmer monthly averages can use July as a comparison, when the monthly mean is 20.5 °C. If lower average rainfall is your priority, July is the conditional option, with mean daily rainfall of 1.25 mm/day. It does not guarantee dry days or indicate rain frequency, so retain flexible plans and bring suitable rain protection; December, at 3.07 mm/day mean daily rainfall, is the month to keep in mind when preparing for wetter averages. For outdoor sightseeing planned around average sunshine duration, July records 11.98 hours/day per day, while January records 4.06 hours/day. These averages may help with broad planning, but sunshine duration is not day length and cannot promise clear conditions; check a forecast closer to travel. Snowfall averages are highest in January, at 0.27 mm/day per day. That amount alone does not indicate how many days have snow, whether snow will cover the ground, or what conditions a visitor will encounter, so it is not a basis for assuming snow activities will be available.

Climate Data Overview for Nantes, France

Explore the comprehensive climate data for Nantes, France. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Nantes
• Explore the climate in France