September weather forecast
Port Tennant, United Kingdom

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Weather in September

The first month of the autumn, September, is still a refreshing month in Port Tennant, United Kingdom, with an average temperature ranging between min 12.5°C (54.5°F) and max 16.6°C (61.9°F).

Temperature

With the onset of September, Port Tennant's average high-temperature clocks in at a still refreshing 16.6°C (61.9°F), showing a minor fluctuation from the previous month. September nighttime temperatures in Port Tennant hover close to the daytime peak with an average of 12.5°C (54.5°F).

Humidity

The average relative humidity in September in Port Tennant is 83%.

Rainfall

In September, the rain falls for 16.4 days. Throughout September, 47mm (1.85") of precipitation is accumulated. Throughout the year, there are 208.1 rainfall days, and 658mm (25.91") of precipitation is accumulated.

Snowfall

In Port Tennant, snow does not fall in April through November.

Daylight

In Port Tennant, the average length of the day in September is 12h and 38min.
On the first day of the month, sunrise is at 6:29 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:15 am and sunset at 6:55 pm BST.

Sunshine

The average sunshine in September is 7h.

UV index

May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 4 in September leads to these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What is the usual temperature for Port Tennant in September?

During September, Port Tennant experiences an average high-temperature of 16.6°C (61.9°F) and a low-temperature of 12.5°C (54.5°F).

What is the average humidity in September in Port Tennant?

In Port Tennant, the average relative humidity in September is 83%.

How much does it rain in Port Tennant in September?

In Port Tennant, in September, during 16.4 rainfall days, 47mm (1.85") of precipitation is typically accumulated.

When it does not snow in Port Tennant?

April through November are months without snowfall.

What is the average length of the day in September in Port Tennant?

The average day length in September is 12h and 38min.

When are sunrise and sunset in September in Port Tennant?

On the first day of September in Port Tennant, sunrise is at 6:29 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:55 pm BST.

How long on average sun shines in September in Port Tennant?

In Port Tennant, the average sunshine duration in September is 7h.

When is the highest UV index in Port Tennant?

The months with the highest UV index in Port Tennant, United Kingdom, are May through September, with an average maximum UV index of 4.

What is the UV index reading in September in Port Tennant?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Port Tennant, United Kingdom

Average temperature in September - Port Tennant, United Kingdom
  • Average high temperature in September: 16.6°C

The warmest month (with the highest average high temperature) is July (17.9°C).
The month with the lowest average high temperature is February (7.8°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (4.9°C).

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Average pressure in September
Port Tennant, United Kingdom

Average pressure in September - Port Tennant, United Kingdom
  • Average pressure in September: 1016.7mbar

The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

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Average wind speed in September
Port Tennant, United Kingdom

Average wind speed in September - Port Tennant, United Kingdom
  • Average wind speed in September: 19.1km/h

The windiest month (with the highest average wind speed) is December (25.5km/h).
The calmest month (with the lowest average wind speed) is June (16.4km/h).

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Average humidity in September
Port Tennant, United Kingdom

Average humidity in September - Port Tennant, United Kingdom
  • Average humidity in September: 83%

The months with the highest relative humidity are January, August and December (84%).
The month with the lowest relative humidity is April (80%).

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Average rainfall in September
Port Tennant, United Kingdom

Average rainfall in September - Port Tennant, United Kingdom
  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is December (81mm).
The driest month (with the least rainfall) is May (29mm).

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Average rainfall days in September
Port Tennant, United Kingdom

Average rainfall days in September - Port Tennant, United Kingdom
  • Average rainfall days in September: 16.4 days

The month with the highest number of rainy days is December (20.9 days).
The month with the least rainy days is April (12.9 days).

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Average snowfall in September
Port Tennant, United Kingdom

Average snowfall in September - Port Tennant, United Kingdom
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (5mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in September
Port Tennant, United Kingdom

Average snowfall days in September - Port Tennant, United Kingdom
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Port Tennant, United Kingdom

Average daylight in September / Average sunshine in September - Port Tennant, United Kingdom
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in September: 7h and 0min

The month with the most sunshine is May (Average sunshine: 8h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Port Tennant, United Kingdom

Average sunshine days in September - Port Tennant, United Kingdom
  • Average sunshine days in September: 10.4 days

The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is December (7.3 days).

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Average UV index in September
Port Tennant, United Kingdom

Average UV index in September - Port Tennant, United Kingdom
  • Average UV index in September: 4

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Port Tennant, United Kingdom

Average cloud cover in September - Port Tennant, United Kingdom
  • Average cloud cover in September: 51

The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 46).

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Average visibility in September
Port Tennant, United Kingdom

Average visibility in September - Port Tennant, United Kingdom
  • Average visibility in September: 9km

The months with the highest visibility are February, March, April, October and November (10km).
The months with the lowest visibility are January, May, June, July, August, September and December (9km).

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Port Tennant, United Kingdom

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