September weather forecastKeysoe, United Kingdom

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Keysoe, United Kingdom, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 10.5°C (50.9°F).

Temperature

September's presence records an average high-temperature of a refreshing 18.3°C (64.9°F), closely mirroring August's climate. September's nights observe an average temperature of 10.5°C (50.9°F).

Humidity

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

Rainfall

September is the month with the least rainfall in Keysoe. Rain falls for 10.5 days and accumulates 19mm (0.75") of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Keysoe, the average length of the day in September is 12h and 39min.
On the first day of the month, sunrise is at 6:14 am and sunset at 7:49 pm. On the last day of September, in Keysoe, sunrise is at 7:02 am and sunset at 6:41 pm BST.

Sunshine

The average sunshine in September is 7h.

UV index

In Keysoe, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

The average high-temperature, in September, in Keysoe, is 18.3°C (64.9°F), while the average low-temperature is 10.5°C (50.9°F).

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

The month with the least rainfall in Keysoe, United Kingdom, is September, when the rain falls for 10.5 days and typically collects 19mm (0.75") of precipitation.

In Keysoe, United Kingdom, in September, it is raining for 10.5 days, with typically 19mm (0.75") of accumulated precipitation.

April through October are months without snowfall.

In September, the average day length is 12h and 39min.

In September, on the first day of the month, sunrise is at 6:14 am and sunset at 7:49 pm. On the last day of the month, in Keysoe, sunrise is at 7:02 am and sunset at 6:41 pm BST.

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

In September, the average daily maximum UV index in Keysoe 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
Keysoe, United Kingdom

  • Average high temperature in September: 18.3°C

The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (6°C).

  • Average low temperature in September: 10.5°C

The month with the highest average low temperature is August (13.1°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).

Average pressure in September
Keysoe, United Kingdom

  • Average pressure in September: 1016.5mbar

The month with the highest atmospheric pressure is May (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).

Average wind speed in September
Keysoe, United Kingdom

  • Average wind speed in September: 13.4km/h

The windiest month (with the highest average wind speed) is December (18.6km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).

Average humidity in September
Keysoe, United Kingdom

  • Average humidity in September: 79%

The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (77%).

Average rainfall in September
Keysoe, United Kingdom

  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is September (19mm).

Average rainfall days in September
Keysoe, United Kingdom

  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is September (10.5 days).

Average snowfall in September
Keysoe, United Kingdom

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Keysoe, United Kingdom

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.7 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
Keysoe, United Kingdom

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in September: 7h and 0min

The month with the most sunshine is August (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in September
Keysoe, 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 July (9.8 days).

Average UV index in September
Keysoe, 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
Keysoe, United Kingdom

  • Average cloud cover in September: 50

The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 50).

Average visibility in September
Keysoe, 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).