September weather forecastLewisporte, Canada
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Lewisporte, Canada, with an average temperature varying between 17.1°C (62.8°F) and 7.7°C (45.9°F).Temperature
In Lewisporte, the average high-temperature in September gently drops from an agreeable 21.8°C (71.2°F) in August to a refreshing 17.1°C (62.8°F). Throughout September, the nighttime temperature averages to a chilly 7.7°C (45.9°F).Humidity
The average relative humidity in September is 81%.Rainfall
In September, in Lewisporte, the rain falls for 15.3 days. Throughout September, 61mm (2.4") of precipitation is accumulated. In Lewisporte, Canada, during the entire year, the rain falls for 154.8 days and collects up to 785mm (30.91") of precipitation.Snowfall
July through September are months without snowfall.Sea temperature
In Lewisporte, the average seawater temperature in September is 11.7°C (53.1°F).Note: You can swim in 11.7°C (53.1°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.
Daylight
In Lewisporte, Canada, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:52 pm. On the last day of September, in Lewisporte, sunrise is at 7:09 am and sunset at 6:50 pm NDT.
Sunshine
The average sunshine in September in Lewisporte is 6.5h.UV index
In September, the average daily maximum UV index in Lewisporte is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lewisporte, Canada
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The months with the lowest average high temperature are January and February (-2.8°C).
- Average low temperature in September: 7.7°C
The month with the highest average low temperature is August (11.9°C).
The coldest month (with the lowest average low temperature) is February (-10.4°C).
Average pressure in September
Lewisporte, Canada
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is February (1007.7mbar).
Average wind speed in September
Lewisporte, Canada
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).
Average humidity in September
Lewisporte, Canada
- Average humidity in September: 81%
The months with the highest relative humidity are January and March (92%).
The months with the lowest relative humidity are June and July (79%).
Average rainfall in September
Lewisporte, Canada
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Lewisporte, Canada
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Lewisporte, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (262mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Lewisporte, Canada
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in September
Lewisporte, Canada
- Average sea temperature in September: 11.7°C
The best month for swimming (with the highest average sea temperature) is August (13.9°C).
The coldest month (with the lowest average sea temperature) is March (-1.3°C).
Average daylight in September /
Average sunshine in September
Lewisporte, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 6h and 30min
The months with the most sunshine are July and August (Average sunshine: 7h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in September
Lewisporte, Canada
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is September (11.3 days).
The month with the least sunshine days is March (7.7 days).
Average UV index in September
Lewisporte, 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, March, November and December (UV index 1).
Average cloud cover in September
Lewisporte, Canada
- Average cloud cover in September: 53
The month with the most cloud cover is March (Cloud cover 75).
The month with the least cloud cover is September (Cloud cover 53).
Average visibility in September
Lewisporte, Canada
- Average visibility in September: 9km
The month with the highest visibility is September (9km).
The months with the lowest visibility are January, February, March and April (7km).
