September weather forecastEgham, United Kingdom

September weather for Egham, United Kingdom: The first month of the autumn, September, is also an enjoyable month in Egham, United Kingdom, with an average temperature ranging between max 18.6°C (65.5°F) and min 10.8°C (51.4°F). September temperatures in Egham, United Kingdom, vary between a high-temperature of 18.6°C (65.5°F) and a low-temperature of 10.8°C (51.4°F).

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Egham, United Kingdom, with an average temperature ranging between max 18.6°C (65.5°F) and min 10.8°C (51.4°F).

Temperature

As August transitions into September, Egham records an average high-temperature of an enjoyable 18.6°C (65.5°F), showing a gentle shift from the preceding month. Egham registers a consistent average low-temperature of 10.8°C (51.4°F) during September.

Humidity

In September, the average relative humidity in Egham is 79%.

Rainfall

In Egham, during September, the rain falls for 12.1 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, there are 172.7 rainfall days, and 452mm (17.8") of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Egham.

Daylight

In Egham, United Kingdom, the average length of the day in September is 12h and 38min.
On the first day of the month, sunrise is at 6:15 am and sunset at 7:48 pm. On the last day of September, in Egham, sunrise is at 7:02 am and sunset at 6:41 pm BST.

Sunshine

The average sunshine in September in Egham, United Kingdom, is 7.4h.

UV index

In Egham, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

September temperatures in Egham, United Kingdom, vary between a high-temperature of 18.6°C (65.5°F) and a low-temperature of 10.8°C (51.4°F).

In September, the average relative humidity in Egham is 79%.

In September, in Egham, the rain falls for 12.1 days. Throughout September, 29mm (1.14") of precipitation is accumulated.

In Egham, United Kingdom, snow does not fall in April through October.

The average day length in September in Egham, United Kingdom, is 12h and 38min.

On the first day of September in Egham, sunrise is at 6:15 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:41 pm BST.

The average sunshine duration in September is 7.4h.

In Egham, United Kingdom, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Egham, United Kingdom

  • Average high temperature in September: 18.6°C

The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (6.6°C).

  • Average low temperature in September: 10.8°C

The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (2.1°C).

Average pressure in September
Egham, United Kingdom

  • Average pressure in September: 1016.9mbar

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).

Average wind speed in September
Egham, United Kingdom

  • Average wind speed in September: 12.9km/h

The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).

Average humidity in September
Egham, United Kingdom

  • Average humidity in September: 79%

The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in September
Egham, United Kingdom

  • Average rainfall in September: 29mm

The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (25mm).

Average rainfall days in September
Egham, United Kingdom

  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (11.8 days).

Average snowfall in September
Egham, United Kingdom

  • Average snowfall in September: 0mm

The months with the highest snowfall are January and February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Egham, United Kingdom

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in September: 7h and 24min

The month with the most sunshine is July (Average sunshine: 8h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in September
Egham, United Kingdom

  • Average sunshine days in September: 14 days

The month with the most sunshine days is March (15.4 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in September
Egham, United Kingdom

  • Average UV index in September: 4

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

Average cloud cover in September
Egham, United Kingdom

  • Average cloud cover in September: 49

The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 48).

Average visibility in September
Egham, United Kingdom

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (9km).
The months with the lowest visibility are October and November (8km).