Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a comfortable 18.8°C (65.8°F) in August to a moderate 14.1°C (57.4°F). During the month of September, the temperature generally drops to a low average of 8.2°C (46.8°F).Humidity
In September, the average relative humidity is 78%.Rainfall
In Havre-Saint-Pierre, in September, during 13.6 rainfall days, 67mm (2.64") of precipitation is typically accumulated. Throughout the year, there are 134.9 rainfall days, and 799mm (31.46") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Sea temperature
In Havre-Saint-Pierre, the average seawater temperature in September is 10.3°C (50.5°F).Note: Navigating the 10.3°C (50.5°F) at 13°C (55.4°F) is no joy, and temperatures less than 10°C (50°F) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
In September, the average length of the day is 12h and 36min.On the first day of the month, sunrise is at 5:30 am and sunset at 6:58 pm. On the last day of September, sunrise is at 6:14 am and sunset at 5:54 pm EDT.
Sunshine
In Havre-Saint-Pierre, the average sunshine in September is 7.8h.UV index
In Havre-Saint-Pierre, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. To guard against the harmful effects of the Sun, minimize exposure during midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the sea water temperature in September in Havre-Saint-Pierre?
How many hours of daylight does Havre-Saint-Pierre have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Havre-Saint-Pierre, Canada
- Average high temperature in September: 14.1°C
The warmest months (with the highest average high temperature) are July and August (18.8°C).
The month with the lowest average high temperature is January (-7.9°C).
- Average low temperature in September: 8.2°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (-14.1°C).
Average pressure in September
Havre-Saint-Pierre, Canada
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is January (1009.9mbar).
Average wind speed in September
Havre-Saint-Pierre, Canada
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is December (19.2km/h).
The calmest month (with the lowest average wind speed) is July (13.5km/h).
Average humidity in September
Havre-Saint-Pierre, Canada
- Average humidity in September: 78%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (75%).
Average rainfall in September
Havre-Saint-Pierre, Canada
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is February (47mm).
Average rainfall days in September
Havre-Saint-Pierre, Canada
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Havre-Saint-Pierre, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is March (202mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Havre-Saint-Pierre, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Havre-Saint-Pierre, Canada
- Average sea temperature in September: 10.3°C
The best month for swimming (with the highest average sea temperature) is August (13.8°C).
The coldest months (with the lowest average sea temperature) are February and March (-1.1°C).
Average daylight in September /
Average sunshine in September
Havre-Saint-Pierre, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 18min).
Average sunshine days in September
Havre-Saint-Pierre, Canada
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is January (9.8 days).
Average UV index in September
Havre-Saint-Pierre, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Havre-Saint-Pierre, Canada
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 41).
Average visibility in September
Havre-Saint-Pierre, Canada
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March and April (8km).
