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
September's onset brings an average high-temperature of a still comfortable 17.3°C (63.1°F), showing a minute difference from August's 18.3°C (64.9°F). September nights in Ventnor reflect a consistent temperature dip to a mild 14.4°C (57.9°F), a slight descent from daytime peaks.Humidity
The least humid month in Ventnor is September, with an average relative humidity of 79%.Rainfall
In Ventnor, during September, the rain falls for 11.3 days and regularly aggregates up to 20mm (0.79") of precipitation. In Ventnor, United Kingdom, during the entire year, the rain falls for 153.2 days and collects up to 290mm (11.42") of precipitation.Snowfall
March through October and December are months without snowfall.Daylight
The average length of the day in September is 12h and 37min.On the first day of September in Ventnor, United Kingdom, sunrise is at 6:19 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:44 pm BST.
Sunshine
The average sunshine in September is 8.4h.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 rays for ordinary individuals.Note: An average UV index of 4 in September transforms into this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Ventnor?
What is the least humid month in Ventnor?
What is the average humidity in September in Ventnor?
How much does it rain in Ventnor in September?
When it does not snow in Ventnor?
What is the average length of the day in September in Ventnor?
What time are sunrise and sunset in September in Ventnor?
How long on average sun shines in September in Ventnor?
What is the UV index reading in September in Ventnor?
Average temperature in September
Ventnor, United Kingdom
- Average high temperature in September: 17.3°C
The warmest month (with the highest average high temperature) is August (18.3°C).
The month with the lowest average high temperature is February (8.1°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is August (15.5°C).
The coldest month (with the lowest average low temperature) is February (5.6°C).
Average pressure in September
Ventnor, United Kingdom
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in September
Ventnor, United Kingdom
- Average wind speed in September: 23.2km/h
The windiest month (with the highest average wind speed) is December (30.6km/h).
The calmest month (with the lowest average wind speed) is July (20.1km/h).
Average humidity in September
Ventnor, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is September (79%).
Average rainfall in September
Ventnor, United Kingdom
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is November (42mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Ventnor, United Kingdom
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is November (16.4 days).
The month with the least rainy days is April (10 days).
Average snowfall in September
Ventnor, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are January and November (3mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Ventnor, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.6 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
Ventnor, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Ventnor, United Kingdom
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is April (16.5 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in September
Ventnor, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Ventnor, United Kingdom
- Average cloud cover in September: 40
The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Ventnor, 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).
