September weather forecast and climate
Lewisporte, Canada

September, the first month of the autumn, in Lewisporte, is also an enjoyable month, with temperature in the range of an average low of 7.7°C (45.9°F) and an average high of 17.1°C (62.8°F).

Temperature

In Lewisporte, the average high-temperature slightly decreases, from a pleasant 21.8°C (71.2°F) in August, to an enjoyable 17.1°C (62.8°F). The average low-temperature, in Lewisporte, is 7.7°C (45.9°F).

Humidity

The average relative humidity in Lewisporte is 81%.

Rainfall

In Lewisporte, during September, the rain falls for 15.3 days and regularly aggregates up to 61mm (2.4") of precipitation. Throughout the year, there are 154.8 rainfall days, and 785mm (30.91") of precipitation is accumulated.

Snowfall

In Lewisporte snow does not fall in July through September.

Sea temperature

In Lewisporte, the average seawater temperature is 11.7°C (53.1°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

The average length of the day in Lewisporte is 12.6h.

Sunshine

In Lewisporte, Canada, the average sunshine in September is 6.5h.

UV index

In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in September in Lewisporte?

In Lewisporte, Canada, in September, the average high-temperature is 17.1°C (62.8°F), and the average low-temperature is 7.7°C (45.9°F).

What is the average humidity in September in Lewisporte?

In September, the average relative humidity in Lewisporte, Canada, is 81%.

How many days does it rain in September in Lewisporte?

In Lewisporte, Canada, in September, during 15.3 rainfall days, 61mm (2.4") of precipitation is typically accumulated.

Does it snow in Lewisporte in September?

In Lewisporte, Canada, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Lewisporte?

July through September are months without snowfall in Lewisporte.

How cold is the water in September in Lewisporte?

In September, the average sea temperature in Lewisporte, Canada, is 11.7°C (53.1°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Lewisporte have in September?

In September, the average length of the day is 12.6h.

How many hours of sunshine does Lewisporte have in September?

In September, the average sunshine in Lewisporte is 6.5h.

What is the UV index reading in September in Lewisporte?

In September, the average daily maximum UV index in Lewisporte, Canada, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.
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).
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%

Months with the highest relative humidity are January and March (92%).
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).
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).
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: 12.6h

The month with the longest days is June (Average daylight: 16.2h).
The month with the shortest days is December (Average daylight: 8.3h).

  • Average sunshine in September: 6.5h

Months with the most sunshine are July and August (Average sunshine: 7.2h).
The month with the least sunshine is February (Average sunshine: 2.5h).

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).
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).
Months with the lowest visibility are January, February, March and April (7km).