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
As August turns into September, the average high-temperatures rest at a comfortable 18.5°C (65.3°F), showing a minor variation from the prior month. Petworth encounters a steady low-temperature average of 11.1°C (52°F) throughout the month of September.Humidity
The average relative humidity in September is 80%.Rainfall
The month with the least rainfall in Petworth, United Kingdom, is September, when the rain falls for 11.1 days and typically collects 21mm (0.83") of precipitation.Snowfall
In Petworth, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September in Petworth, sunrise is at 6:16 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:42 pm BST.
Sunshine
The average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Petworth?
What is the average humidity in September in Petworth?
What is the driest month in Petworth?
How many days does it rain in September in Petworth?
When it does not snow in Petworth?
What is the average length of the day in September in Petworth?
When is the sunrise / sunset in September in Petworth?
How many hours of sunshine does Petworth have in September?
How high is the UV index in September in Petworth?
Average temperature in September
Petworth, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (7.2°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (13.1°C).
The coldest months (with the lowest average low temperature) are January and February (2.5°C).
Average pressure in September
Petworth, United Kingdom
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in September
Petworth, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is February (18.1km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in September
Petworth, United Kingdom
- Average humidity in September: 80%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (78%).
Average rainfall in September
Petworth, United Kingdom
- Average rainfall in September: 21mm
The wettest months (with the highest rainfall) are June and November (41mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in September
Petworth, United Kingdom
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is September (11.1 days).
Average snowfall in September
Petworth, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Petworth, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
Petworth, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is July (Average sunshine: 8h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Petworth, United Kingdom
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is July (10 days).
Average UV index in September
Petworth, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and 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
Petworth, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is November (Cloud cover 62).
The months with the least cloud cover are July and September (Cloud cover 48).
Average visibility in September
Petworth, 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).
