September weather forecast
Emsworth, United Kingdom

Weather in September

The first month of the autumn, September, is also an enjoyable month in Emsworth, United Kingdom, with an average temperature fluctuating between 12.2°C (54°F) and 18°C (64.4°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still enjoyable 18°C (64.4°F). In Emsworth, the average low-temperature is 12.2°C (54°F).

Humidity

The average relative humidity in September in Emsworth, United Kingdom, is 80%.

Rainfall

In Emsworth, it is raining for 11.5 days, with typically 25mm (0.98") of accumulated precipitation. In Emsworth, during the entire year, the rain falls for 175.3 days and collects up to 435mm (17.13") of precipitation.

Snowfall

In Emsworth, snow does not fall in April through October.

Sea temperature

The month with the warmest seawater is September, with an average sea temperature of 17.3°C (63.1°F).
Note: Swimming in 17.3°C (63.1°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In Emsworth, the average length of the day in September is 12h and 38min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:44 pm BST.

Sunshine

In Emsworth, the average sunshine in September is 7.9h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the 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.
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FAQ

What is the average humidity in September in Emsworth?

The average relative humidity in September is 80%.

How many days does it rain in September in Emsworth?

In Emsworth, United Kingdom, during September, the rain falls for 11.5 days and regularly aggregates up to 25mm (0.98") of precipitation.

When it does not snow in Emsworth?

In Emsworth, snow does not fall in April through October.

What is the month with the warmest sea water in Emsworth?

The month with the warmest seawater in Emsworth is September, with an average sea temperature of 17.3°C (63.1°F).

What is the sea water temperature in September in Emsworth?

In Emsworth, the average seawater temperature in September is 17.3°C (63.1°F). For swimming, a surface water temperature of 17.3°C (63.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the average length of the day in September in Emsworth?

In Emsworth, United Kingdom, the average day length in September is 12h and 38min.

When are sunrise and sunset in September in Emsworth?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:49 pm. On the last day of the month, in Emsworth, United Kingdom, sunrise is at 7:02 am and sunset at 6:44 pm BST.

How many hours of sunshine does Emsworth have in September?

In Emsworth, United Kingdom, the average sunshine duration in September is 7.9h.

What is the UV index intensity in September in Emsworth?

In Emsworth, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Emsworth, United Kingdom

Average temperature in September - Emsworth, United Kingdom
  • Average high temperature in September: 18°C

The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in September: 12.2°C

The month with the highest average low temperature is August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (3.9°C).

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Average pressure in September
Emsworth, United Kingdom

Average pressure in September - Emsworth, United Kingdom
  • Average pressure in September: 1017.2mbar

The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).

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Average wind speed in September
Emsworth, United Kingdom

Average wind speed in September - Emsworth, United Kingdom
  • Average wind speed in September: 16.7km/h

The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).

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Average humidity in September
Emsworth, United Kingdom

Average humidity in September - Emsworth, United Kingdom
  • Average humidity in September: 80%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (79%).

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Average rainfall in September
Emsworth, United Kingdom

Average rainfall in September - Emsworth, United Kingdom
  • Average rainfall in September: 25mm

The wettest month (with the highest rainfall) is November (53mm).
The driest month (with the least rainfall) is April (23mm).

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Average rainfall days in September
Emsworth, United Kingdom

Average rainfall days in September - Emsworth, United Kingdom
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is November (18.4 days).
The month with the least rainy days is September (11.5 days).

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Average snowfall in September
Emsworth, United Kingdom

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

The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in September
Emsworth, United Kingdom

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

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in September
Emsworth, United Kingdom

Average sea temperature in September - Emsworth, United Kingdom
  • Average sea temperature in September: 17.3°C

The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).

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Average daylight in September /
Average sunshine in September
Emsworth, United Kingdom

Average daylight in September / Average sunshine in September - Emsworth, United Kingdom
  • Average daylight in September: 12h and 38min

The month with the longest days is June (Average daylight: 16h and 26min).
The month with the shortest days is December (Average daylight: 8h and 2min).

  • Average sunshine in September: 7h and 54min

The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in September
Emsworth, United Kingdom

Average sunshine days in September - Emsworth, United Kingdom
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is November (9.3 days).

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Average UV index in September
Emsworth, United Kingdom

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

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Emsworth, United Kingdom

Average cloud cover in September - Emsworth, United Kingdom
  • Average cloud cover in September: 43

The month with the most cloud cover is November (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 43).

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Average visibility in September
Emsworth, United Kingdom

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

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

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