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
The advent of September denotes an average high-temperature of a moderate 15.8°C (60.4°F), subtly different from August's 17.9°C (64.2°F). Seaton Delaval records a consistent average nighttime temperature of 11.2°C (52.2°F) in September, slightly lower than the daytime high.Humidity
In Seaton Delaval, the average relative humidity in September is 80%.Rainfall
In Seaton Delaval, in September, during 14.2 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, in Seaton Delaval, United Kingdom, there are 194.2 rainfall days, and 471mm (18.54") of precipitation is accumulated.Snowfall
In Seaton Delaval, United Kingdom, snow does not fall in May through October.Daylight
In Seaton Delaval, United Kingdom, the average length of the day in September is 12h and 43min.On the first day of September, sunrise is at 6:13 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:44 pm BST.
Sunshine
In September, the average sunshine in Seaton Delaval is 7.7h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Seaton Delaval?
What is the average humidity in September in Seaton Delaval?
How much does it rain in Seaton Delaval in September?
When it does not snow in Seaton Delaval?
What is the average length of the day in September in Seaton Delaval?
When is the sunrise / sunset in September in Seaton Delaval?
How long on average sun shines in September in Seaton Delaval?
When is the highest UV index in Seaton Delaval?
What is the UV index intensity in September in Seaton Delaval?
Average temperature in September
Seaton Delaval, United Kingdom
- Average high temperature in September: 15.8°C
The warmest months (with the highest average high temperature) are July and August (17.9°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13°C).
The coldest months (with the lowest average low temperature) are January and February (3.4°C).
Average pressure in September
Seaton Delaval, United Kingdom
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1007.8mbar).
Average wind speed in September
Seaton Delaval, United Kingdom
- Average wind speed in September: 17.9km/h
The windiest month (with the highest average wind speed) is January (23.1km/h).
The calmest month (with the lowest average wind speed) is June (14.5km/h).
Average humidity in September
Seaton Delaval, United Kingdom
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in September
Seaton Delaval, United Kingdom
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is August (62mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Seaton Delaval, United Kingdom
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is February (12.5 days).
Average snowfall in September
Seaton Delaval, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Seaton Delaval, 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
Seaton Delaval, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 8h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Seaton Delaval, United Kingdom
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is July (5.9 days).
Average UV index in September
Seaton Delaval, 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
Seaton Delaval, United Kingdom
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 46).
Average visibility in September
Seaton Delaval, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, August and December (10km).
The months with the lowest visibility are January, May, June, July, September, October and November (9km).
