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
Weather in September
Temperature
The onset of September marks an average high-temperature of a still refreshing 16.7°C (62.1°F), hardly differing from August's 19°C (66.2°F). With a barely noticeable fluctuation in temperature, Spilsby reaches an average low of 13°C (55.4°F) during the September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Spilsby, United Kingdom, in September, it is raining for 12.1 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, there are 166.6 rainfall days, and 363mm (14.29") of precipitation is accumulated.Snowfall
In Spilsby, United Kingdom, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:38 pm BST.
Sunshine
In September, the average sunshine is 7.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What are the temperatures in Spilsby in September?
What is the average humidity in September in Spilsby?
How much does it rain in Spilsby in September?
When it does not snow in Spilsby?
What is the average length of the day in September in Spilsby?
What time are sunrise and sunset in September in Spilsby?
How long on average sun shines in September in Spilsby?
What is the UV index intensity in September in Spilsby?
Average temperature in September
Spilsby, United Kingdom
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is August (19°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).
Average pressure in September
Spilsby, United Kingdom
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in September
Spilsby, United Kingdom
- Average wind speed in September: 19.1km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is July (16.1km/h).
Average humidity in September
Spilsby, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Spilsby, United Kingdom
- Average rainfall in September: 27mm
The wettest months (with the highest rainfall) are June and July (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Spilsby, United Kingdom
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (11.5 days).
Average snowfall in September
Spilsby, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Spilsby, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 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
Spilsby, 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 5min
The month with the most sunshine is August (Average sunshine: 8h and 42min).
The months with the least sunshine are February and November (Average sunshine: 4h and 6min).
Average sunshine days in September
Spilsby, United Kingdom
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is April (15.9 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in September
Spilsby, 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
Spilsby, United Kingdom
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are April, August and September (Cloud cover 44).
Average visibility in September
Spilsby, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Spilsby, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
