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
September records an average high-temperature of an enjoyable 18°C (64.4°F), indicating a minor variation from the preceding month. Northampton reports a consistent average low-temperature of 10.2°C (50.4°F) throughout September nights.Humidity
In Northampton, the average relative humidity in September is 81%.Rainfall
The months with the least rainfall in Northampton are March and September Rain falls for 10.1 days and accumulates 22mm (0.87") of rain.Snowfall
May through October are months without snowfall in Northampton.Daylight
In Northampton, the average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 6:16 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:42 pm BST.
Sunshine
In Northampton, the average sunshine in September is 6.9h.UV index
In Northampton, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the average September temperature in Northampton?
What is the average humidity in September in Northampton?
What is the driest month in Northampton?
How many days does it rain in September in Northampton?
When it does not snow in Northampton?
How many hours of daylight does Northampton have in September?
When are sunrise and sunset in September in Northampton?
How long on average sun shines in September in Northampton?
How high is the UV index in September in Northampton?
Average temperature in September
Northampton, United Kingdom
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in September
Northampton, United Kingdom
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed in September
Northampton, United Kingdom
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (18.6km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in September
Northampton, United Kingdom
- Average humidity in September: 81%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (79%).
Average rainfall in September
Northampton, United Kingdom
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is June (44mm).
The driest months (with the least rainfall) are March and September (22mm).
Average rainfall days in September
Northampton, United Kingdom
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is September (10.1 days).
Average snowfall in September
Northampton, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (27mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Northampton, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 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
Northampton, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is July (Average sunshine: 7h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Northampton, 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 June (10.9 days).
Average UV index in September
Northampton, 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
Northampton, United Kingdom
- Average cloud cover in September: 51
The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 51).
Average visibility in September
Northampton, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Northampton, United Kingdom
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