Climate Chart of Mont Saint Michel, France

Climate overview

Temperature

The coolest monthly mean temperature occurs in January, at 6.4 °C; the warmest occurs in July, at 18.7 °C. These are monthly averages, not daytime maximum temperatures, so they describe the overall temperature level of each month rather than the warmest part of a day. The unweighted mean across the calendar-month temperature means is 12.2 °C. It offers a broad summary of those monthly averages, but is not a day-weighted annual average and does not show the day-to-day range visitors may experience.

Rain

Mean daily rainfall is highest in November, at 3.97 mm/day, and lowest in July, at 1.95 mm/day. The figures are daily means for those months, not monthly rainfall totals; the lower average does not guarantee rain-free days or indicate how often rain occurs. The unweighted mean of the monthly mean daily rainfall values is 2.78 mm/day. It provides a broad reference across the calendar months, rather than a day-weighted annual average or a measure of rainfall frequency.

Sunshine

Mean daily sunshine reaches its highest value in July, at 11.79 hours/day, and its lowest in December, at 3.88 hours/day. These averages can help with planning outdoor time, but sunshine duration is not the same as day length. The unweighted mean across the monthly mean daily sunshine values is 8.01 hours/day. This gives a general reference for the annual pattern, while actual sunshine on a particular visit may differ from the monthly average.

Snow

Mean daily snowfall reaches its highest monthly value in January, at 0.55 mm/day. This is a daily mean amount, not a monthly total, and does not establish how many days have snow, snow depth, snow cover, or whether conditions suit skiing. The unweighted mean of the monthly mean daily snowfall values is 0.14 mm/day. It summarises the monthly averages but cannot show the frequency or accumulation of snowfall on individual days.