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
At the start of September, Walton-on-Thames's average high-temperature reaches a refreshing 18.7°C (65.7°F), subtly different from the preceding month. Walton-on-Thames, during the nights of September, experiences an average temperature drop to a fresh 11.2°C (52.2°F).Humidity
The average relative humidity in September is 78%.Rainfall
In Walton-on-Thames, United Kingdom, in September, it is raining for 10.5 days, with typically 20mm (0.79") of accumulated precipitation. Throughout the year, there are 156.9 rainfall days, and 304mm (11.97") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Walton-on-Thames.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:41 pm BST.
Sunshine
In September, the average sunshine in Walton-on-Thames is 7.5h.UV index
The average daily maximum UV index in September in Walton-on-Thames is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Walton-on-Thames in September?
What is the average humidity in September in Walton-on-Thames?
How much does it rain in Walton-on-Thames in September?
When it does not snow in Walton-on-Thames?
How many hours of daylight does Walton-on-Thames have in September?
When are sunrise and sunset in September in Walton-on-Thames?
How long on average sun shines in September in Walton-on-Thames?
What is the UV index intensity in September in Walton-on-Thames?
Average temperature in September
Walton-on-Thames, United Kingdom
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in September
Walton-on-Thames, United Kingdom
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in September
Walton-on-Thames, United Kingdom
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Walton-on-Thames, United Kingdom
- Average humidity in September: 78%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Walton-on-Thames, United Kingdom
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is November (33mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Walton-on-Thames, United Kingdom
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Walton-on-Thames, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Walton-on-Thames, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Walton-on-Thames, 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: 7h and 54min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is July (Average sunshine: 8h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Walton-on-Thames, United Kingdom
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Walton-on-Thames, 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
Walton-on-Thames, United Kingdom
- Average cloud cover in September: 48
The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 47).
Average visibility in September
Walton-on-Thames, 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).
