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
Bourne records an average high-temperature of a refreshing 17.9°C (64.2°F) in September, maintaining a close correlation with August's 20.3°C (68.5°F). Bourne observes an average low-temperature of 10.6°C (51.1°F) during September nights.Humidity
In September, the average relative humidity in Bourne is 79%.Rainfall
In Bourne, during September, the rain falls for 10.3 days and regularly aggregates up to 18mm (0.71") of precipitation. Throughout the year, there are 152.3 rainfall days, and 262mm (10.31") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Bourne, United Kingdom.Daylight
In September, the average length of the day in Bourne is 12h and 40min.On the first day of September, sunrise is at 6:13 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:40 pm BST.
Sunshine
The average sunshine in September is 6.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What are September temperatures in Bourne?
What is the average humidity in September in Bourne?
How many days does it rain in September in Bourne?
When it does not snow in Bourne?
What is the average length of the day in September in Bourne?
What time are sunrise and sunset in September in Bourne?
How many hours of sunshine does Bourne have in September?
How high is the UV index in September in Bourne?
Average temperature in September
Bourne, United Kingdom
- Average high temperature in September: 17.9°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 (5.8°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in September
Bourne, United Kingdom
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in September
Bourne, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is December (18.5km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Bourne, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Bourne, United Kingdom
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is June (37mm).
The driest months (with the least rainfall) are March and April (15mm).
Average rainfall days in September
Bourne, United Kingdom
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in September
Bourne, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Bourne, 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 May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Bourne, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 6h and 5min
The months with the most sunshine are July and August (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Bourne, United Kingdom
- Average sunshine days in September: 15.8 days
The months with the most sunshine days are October and December (15.9 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Bourne, 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
Bourne, United Kingdom
- Average cloud cover in September: 49
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 49).
Average visibility in September
Bourne, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, July, August, September, October and December (9km).
The months with the lowest visibility are June and November (8km).
Bourne, United Kingdom
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