September weather forecastDatchworth, United Kingdom
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Datchworth, United Kingdom, with temperature in the range of an average low of 10.9°C (51.6°F) and an average high of 18.5°C (65.3°F).Temperature
The onset of September brings with it an average high-temperature of a comfortable 18.5°C (65.3°F), showing a negligible variation from the month before. Datchworth, in the month of September, anticipates a consistent average low-temperature of 10.9°C (51.6°F).Humidity
The average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall in Datchworth. Rain falls for 10.5 days and accumulates 15mm (0.59") of precipitation.Snowfall
In Datchworth, snow does not fall in April through October.Daylight
In Datchworth, the average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 6:13 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:40 pm BST.
Sunshine
In Datchworth, the average sunshine in September is 7.2h.UV index
The average daily maximum UV index in September in Datchworth is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Around midday, solar radiation is most harmful; hence, exposure should be limited. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Datchworth, United Kingdom
- Average high temperature in September: 18.5°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 (6.3°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in September
Datchworth, United Kingdom
- Average pressure in September: 1016.7mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Datchworth, United Kingdom
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in September
Datchworth, United Kingdom
- Average humidity in September: 78%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Datchworth, United Kingdom
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is June (36mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in September
Datchworth, United Kingdom
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Datchworth, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Datchworth, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Datchworth, United Kingdom
- Average daylight in September: 12h and 36min
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 12min
The months with the most sunshine are July and August (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Datchworth, United Kingdom
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Datchworth, 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
Datchworth, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in September
Datchworth, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
