September weather forecastClaygate, United Kingdom

September

Weather in September

September, the first month of the autumn in Claygate, is also an enjoyable month, with an average temperature varying between 18.7°C (65.7°F) and 11.2°C (52.2°F).

Temperature

Claygate's weather in September, with an average high-temperature of a comfortable 18.7°C (65.7°F), subtly shifts from August's 21.6°C (70.9°F). Claygate records a mean low-temperature of 11.2°C (52.2°F) in September.

Humidity

In Claygate, the average relative humidity in September is 78%.

Rainfall

In September, in Claygate, the rain falls for 10.5 days. Throughout September, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 156.9 rainfall days, and 304mm (11.97") of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Claygate.

Daylight

In September, the average length of the day is 12h and 38min.
On the first day of September in Claygate, sunrise is at 6:15 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:41 pm BST.

Sunshine

In September, the average sunshine is 7.5h.

UV index

In Claygate, United Kingdom, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Guard yourself - Avoiding sunburn is suggested. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

Claygate in September has an average high-temperature of 18.7°C (65.7°F) and an average low-temperature of 11.2°C (52.2°F).

In September, the average relative humidity is 78%.

In Claygate, in September, during 10.5 rainfall days, 20mm (0.79") of precipitation is typically accumulated.

In Claygate, United Kingdom, snow does not fall in April through November.

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

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:41 pm BST.

The average sunshine duration in September in Claygate, United Kingdom, is 7.5h.

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Claygate, United Kingdom

  • Average high temperature in September: 18.7°C

The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.8°C).

  • Average low temperature in September: 11.2°C

The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).

Average pressure in September
Claygate, United Kingdom

  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).

Average wind speed in September
Claygate, United Kingdom

  • Average wind speed in September: 12.8km/h

The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).

Average humidity in September
Claygate, United Kingdom

  • Average humidity in September: 78%

The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).

Average rainfall in September
Claygate, United Kingdom

  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is November (33mm).
The driest month (with the least rainfall) is April (17mm).

Average rainfall days in September
Claygate, United Kingdom

  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is September (10.5 days).

Average snowfall in September
Claygate, United Kingdom

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Claygate, United Kingdom

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 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
Claygate, 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: 8h and 0min).

  • Average sunshine in September: 7h and 30min

The month with the most sunshine is July (Average sunshine: 8h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in September
Claygate, United Kingdom

  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (11.1 days).

Average UV index in September
Claygate, 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).

Average cloud cover in September
Claygate, United Kingdom

  • Average cloud cover in September: 48

The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 47).

Average visibility in September
Claygate, United Kingdom

  • Average visibility in September: 9km

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