Temperatures in September
It's pleasantly warm in September in Mont Saint-Michel with an average temperature of 21°C. Temperatures this month range from a low of 18°C to a high of 23°C. At night, you can expect temperatures between 11°C and 16°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Mont Saint-Michel in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Mont Saint-Michel with warm temperatures, averaging around 22°C during the day and nights close to 15°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature stays the same at 22°C, with nights close to 14°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Mont Saint-Michel will be around 20°C, with nights close to 13°C. A shower might show up, but overall the weather will be dry and sunny.
Water temperature
The water temperature at Mont Saint-Michel is 19°C this month. Refreshing if you fancy a swim.
Precipitation in September
In September, there is an average of 49 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 31% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Mont Saint-Michel. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Mont Saint-Michel in September |
UK | ||
|---|---|---|---|
 Average Temperature |
21°C | 20°C | |
 High Temp |
23°C | 22°C | |
| Low Temp |
18°C | 17°C | |
 Total Precipitation |
49 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
August
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Mont Saint-Michel?
Want nice weather? Then September is a great time to be in Mont Saint-Michel. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Mont Saint-Michel in September
With 32°C, Mont Saint-Michel hit the highest temperature in the last 10 years in September 2020. The lowest daytime temperature in this month was 13°C in 2020. The extreme night temperatures ranged from a low of 5°C to a high of 21°C.
Check out the climate of Mont Saint-Michel for all months and discover the best travel time
Daily Temperature in September in Mont Saint-Michel
This chart shows the average daily temperatures, both day and night, for each day in September in Mont Saint-Michel, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Mont Saint-Michel
The chart below shows the average daily precipitation in September for Mont Saint-Michel, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 9 days of rain in Mont Saint-Michel.
Daily UV Index in September in Mont Saint-Michel
This chart shows the average daily UV index in September in Mont Saint-Michel, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Mont Saint-Michel Over the Years
This chart shows the average temperature in September in Mont Saint-Michel, measured in degrees Celsius, over the past years.
Total Precipitation in September in Mont Saint-Michel Over the Years
This chart shows the average precipitation in September in Mont Saint-Michel, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Mont Saint-Michel
Click on a specific day in September for detailed info on the typical weather on that day in Mont Saint-Michel. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Mont Saint-Michel
Have you been to Mont Saint-Michel in September?
Share your weather experience in September in Mont Saint-Michel.
Average Weather in Mont Saint-Michel by Month
Click on a month below to see detailed weather info for Mont Saint-Michel. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Mont Saint-Michel for all months at once
