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
Grainthorpe, United Kingdom, experiences a subtle adjustment in high-temperatures to a still refreshing 17.2°C (63°F) with the onset of September, maintaining near parity with August's 19.5°C (67.1°F). In the month of September, the temperature in Grainthorpe generally rests at an average low of 12.1°C (53.8°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Grainthorpe, in September, during 9.8 rainfall days, 24mm (0.94") of precipitation is typically accumulated. In Grainthorpe, during the entire year, the rain falls for 153.7 days and collects up to 377mm (14.84") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Grainthorpe, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:38 pm BST.
Sunshine
In Grainthorpe, the average sunshine in September is 7h.UV index
The average daily maximum UV index in September in Grainthorpe is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Grainthorpe?
What is the average humidity in September in Grainthorpe?
How much does it rain in Grainthorpe in September?
When it does not snow in Grainthorpe?
How many hours of daylight does Grainthorpe have in September?
What time are sunrise and sunset in September in Grainthorpe?
How long on average sun shines in September in Grainthorpe?
What is the UV index intensity in September in Grainthorpe?
Average temperature in September
Grainthorpe, United Kingdom
- Average high temperature in September: 17.2°C
The warmest month (with the highest average high temperature) is August (19.5°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in September
Grainthorpe, United Kingdom
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in September
Grainthorpe, United Kingdom
- Average wind speed in September: 17.2km/h
The windiest month (with the highest average wind speed) is December (23.4km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Grainthorpe, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Grainthorpe, United Kingdom
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is October (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Grainthorpe, United Kingdom
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is September (9.8 days).
Average snowfall in September
Grainthorpe, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Grainthorpe, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Grainthorpe, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is August (Average sunshine: 7h and 48min).
The months with the least sunshine are February and November (Average sunshine: 3h and 42min).
Average sunshine days in September
Grainthorpe, United Kingdom
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Grainthorpe, 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
Grainthorpe, United Kingdom
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are April, August and September (Cloud cover 49).
Average visibility in September
Grainthorpe, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, August, September and October (10km).
The months with the lowest visibility are January, May, June, July, November and December (9km).
