September weather forecastHeythrop, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Heythrop, United Kingdom, with an average temperature varying between 9.9°C (49.8°F) and 17.7°C (63.9°F).Temperature
As Heythrop welcomes September, the average high-temperature stabilizes at a refreshing 17.7°C (63.9°F), showing little deviation from August's 20.2°C (68.4°F). Heythrop encounters an average low-temperature of 9.9°C (49.8°F) during September nights.Humidity
In September, the average relative humidity in Heythrop is 82%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.3 days and typically collects 25mm (0.98") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Heythrop is 12h and 39min.On the first day of September in Heythrop, sunrise is at 6:18 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:45 pm BST.
Sunshine
In Heythrop, the average sunshine in September is 6.8h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Heythrop, United Kingdom
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in September
Heythrop, United Kingdom
- Average pressure in September: 1016.6mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed in September
Heythrop, United Kingdom
- Average wind speed in September: 13.2km/h
The windiest months (with the highest average wind speed) are February and December (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in September
Heythrop, United Kingdom
- Average humidity in September: 82%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Heythrop, United Kingdom
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is June (49mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in September
Heythrop, United Kingdom
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is September (10.3 days).
Average snowfall in September
Heythrop, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (28mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Heythrop, 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
Heythrop, 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: 6h and 48min
The month with the most sunshine is July (Average sunshine: 7h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Heythrop, United Kingdom
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is September (17.4 days).
The months with the least sunshine days are June and July (11.6 days).
Average UV index in September
Heythrop, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Heythrop, United Kingdom
- Average cloud cover in September: 52
The month with the most cloud cover is November (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 52).
Average visibility in September
Heythrop, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, May, July, August, October and December (9km).
The months with the lowest visibility are April, June, September and November (8km).
