Normal weather for Saint Clair in September
It's hot in September in Saint Clair with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 33°C. At night, you can expect temperatures between 21°C and 26°C.
In September, there is an average of 91 mm of precipitation, spread over 12 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Saint Clair in September |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 20°C | |
 High Temp |
33°C | 22°C | |
| Low Temp |
29°C | 17°C | |
 Total Precipitation |
91 mm | 44 mm | |
| Rainy Days |
12 days | 8 days | |
Start of September
The month of September starts in Saint Clair with hot temperatures, averaging around 33°C during the day and nights close to 25°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature drops to around 32°C, with nights close to 25°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in Saint Clair will be around 31°C, with nights close to 23°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
Discover cheap trips to Saint Clair 
UV index
The UV index is a maximum of 6 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 Saint Clair?
September is a great month to be in Saint Clair for sunny weather. You’ll get high temperatures and not too much rain this month.
The hurricane season in Saint Clair runs from June to November.
Temperature records for Saint Clair in September
With 36°C, Saint Clair hit the highest temperature in the last 10 years in September 2019. The lowest daytime temperature in this month was 23°C in 2020. The extreme night temperatures ranged from a low of 12°C to a high of 29°C.
Check out the climate of Saint Clair for all months and discover the best travel time
August
Plan your next holiday
Don’t miss the best holiday deals for Saint Clair and see what our partners have for you.
Daily Temperature in September in Saint Clair
This chart shows the average daily temperatures, both day and night, for each day in September in Saint Clair, 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 Saint Clair
The chart below shows the average daily precipitation in September for Saint Clair, 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 12 days of rain in Saint Clair.
Daily UV Index in September in Saint Clair
This chart shows the average daily UV index in September in Saint Clair, 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 Saint Clair Over the Years
This chart shows the average temperature in September in Saint Clair, measured in degrees Celsius, over the past years.
Total Precipitation in September in Saint Clair Over the Years
This chart shows the average precipitation in September in Saint Clair, 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 Saint Clair
Click on a specific day in September for detailed info on the typical weather on that day in Saint Clair. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Saint Clair
Have you been to Saint Clair in September?
Share your weather experience in September in Saint Clair.
Average Weather in Saint Clair by Month
Click on a month below to see detailed weather info for Saint Clair. 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 Saint Clair for all months at once
