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 ushering in of September brings an average high-temperature of a comfortable 17.4°C (63.3°F), closely mirroring the 20°C (68°F) of August. September nights cool down to an average low-temperature of 11.3°C (52.3°F).Humidity
In Caistor, the average relative humidity in September is 79%.Rainfall
In Caistor, in September, it is raining for 7.4 days, with typically 9mm (0.35") of accumulated precipitation. Throughout the year, in Caistor, there are 109.1 rainfall days, and 154mm (6.06") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Caistor, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:39 pm BST.
Sunshine
In September, the average sunshine in Caistor is 7.1h.UV index
In Caistor, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. To guard against the harmful effects of the Sun, minimize exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Caistor in September?
What is the average humidity in September in Caistor?
How many days does it rain in September in Caistor?
When it does not snow in Caistor?
How many hours of daylight does Caistor have in September?
When are sunrise and sunset in September in Caistor?
How many hours of sunshine does Caistor have in September?
What is the UV index reading in September in Caistor?
Average temperature in September
Caistor, United Kingdom
- Average high temperature in September: 17.4°C
The warmest month (with the highest average high temperature) is August (20°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in September
Caistor, 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 (1009.1mbar).
Average wind speed in September
Caistor, United Kingdom
- Average wind speed in September: 14.9km/h
The windiest month (with the highest average wind speed) is December (19.7km/h).
The calmest month (with the lowest average wind speed) is July (13.4km/h).
Average humidity in September
Caistor, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Caistor, United Kingdom
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is June (20mm).
The driest month (with the least rainfall) is April (7mm).
Average rainfall days in September
Caistor, United Kingdom
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in September
Caistor, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Caistor, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Caistor, 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 1min
The month with the most sunshine is August (Average sunshine: 7h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Caistor, United Kingdom
- Average sunshine days in September: 20 days
The month with the most sunshine days is September (20 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in September
Caistor, 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
Caistor, United Kingdom
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in September
Caistor, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (9km).
