Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Kings Langley experiences a subtle adjustment in high-temperatures to a refreshing 18.5°C (65.3°F) with the onset of September, maintaining near parity with August's 21.3°C (70.3°F). In Kings Langley, the expected average low-temperature for September is a fresh 10.7°C (51.3°F).Humidity
In September, the average relative humidity in Kings Langley is 79%.Rainfall
In September, the rain falls for 9.3 days. Throughout September, 14mm (0.55") of precipitation is accumulated. In Kings Langley, during the entire year, the rain falls for 140.9 days and collects up to 239mm (9.41") of precipitation.Snowfall
In Kings Langley, snow does not fall in April through November.Daylight
In Kings Langley, 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, sunrise is at 7:01 am and sunset at 6:41 pm BST.
Sunshine
The average sunshine in September in Kings Langley is 7.2h.UV index
In September, the average daily maximum UV index in Kings Langley is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Kings Langley in September?
What is the average humidity in September in Kings Langley?
How much does it rain in Kings Langley in September?
When it does not snow in Kings Langley?
What is the average length of the day in September in Kings Langley?
When are sunrise and sunset in September in Kings Langley?
How long on average sun shines in September in Kings Langley?
What is the UV index intensity in September in Kings Langley?
Average temperature in September
Kings Langley, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 10.7°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 (1.6°C).
Average pressure in September
Kings Langley, United Kingdom
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Kings Langley, United Kingdom
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is February (18.1km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in September
Kings Langley, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Kings Langley, United Kingdom
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is June (31mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Kings Langley, United Kingdom
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is July (14.2 days).
The months with the least rainy days are February and September (9.3 days).
Average snowfall in September
Kings Langley, 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
Kings Langley, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Kings Langley, 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 1min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Kings Langley, United Kingdom
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in September
Kings Langley, 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
Kings Langley, United Kingdom
- Average cloud cover in September: 49
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in September
Kings Langley, 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).
