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 average high-temperature during September registers at a moderate 15.2°C (59.4°F), closely corresponding to the preceding month. Throughout September in Alnwick, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 10.5°C (50.9°F).Humidity
The average relative humidity in September in Alnwick is 83%.Rainfall
In Alnwick, in September, it is raining for 12.3 days, with typically 29mm (1.14") of accumulated precipitation. In Alnwick, during the entire year, the rain falls for 179.1 days and collects up to 414mm (16.3") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Alnwick is 12h and 44min.On the first day of the month, sunrise is at 6:13 am and sunset at 7:59 pm. On the last day of September, in Alnwick, sunrise is at 7:08 am and sunset at 6:44 pm BST.
Sunshine
In September, the average sunshine in Alnwick, United Kingdom, is 7.3h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Alnwick in September?
What is the average humidity in September in Alnwick?
How many days does it rain in September in Alnwick?
When it does not snow in Alnwick?
What is the average length of the day in September in Alnwick?
What time are sunrise and sunset in September in Alnwick?
How many hours of sunshine does Alnwick have in September?
What is the month with the highest UV index in Alnwick?
How high is the UV index in September in Alnwick?
Average temperature in September
Alnwick, United Kingdom
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (12.2°C).
The coldest months (with the lowest average low temperature) are January and February (2.8°C).
Average pressure in September
Alnwick, United Kingdom
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1007.6mbar).
Average wind speed in September
Alnwick, United Kingdom
- Average wind speed in September: 18.3km/h
The windiest month (with the highest average wind speed) is January (23.6km/h).
The calmest month (with the lowest average wind speed) is June (14.7km/h).
Average humidity in September
Alnwick, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are January, November and December (85%).
The months with the lowest relative humidity are March, April and May (81%).
Average rainfall in September
Alnwick, United Kingdom
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is August (52mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Alnwick, United Kingdom
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in September
Alnwick, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (29mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Alnwick, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alnwick, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is November (Average sunshine: 4h and 12min).
Average sunshine days in September
Alnwick, United Kingdom
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is April (14.5 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in September
Alnwick, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Alnwick, United Kingdom
- Average cloud cover in September: 49
The months with the most cloud cover are February and November (Cloud cover 57).
The month with the least cloud cover is April (Cloud cover 48).
Average visibility in September
Alnwick, United Kingdom
- Average visibility in September: 9km
The month with the highest visibility is December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and November (9km).
