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 is a still comfortable 17.7°C (63.9°F), almost matching the conditions of the preceding month. During September, Gloucester experiences a consistent low-temperature average of 9.6°C (49.3°F).Humidity
In Gloucester, the average relative humidity in September is 84%.Rainfall
In Gloucester, in September, it is raining for 12.7 days, with typically 28mm (1.1") of accumulated precipitation. In Gloucester, during the entire year, the rain falls for 175.7 days and collects up to 447mm (17.6") of precipitation.Snowfall
In Gloucester, snow does not fall in May through November.Daylight
In Gloucester, United Kingdom, the average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:55 pm. On the last day of September, in Gloucester, sunrise is at 7:09 am and sunset at 6:48 pm BST.
Sunshine
In September, the average sunshine in Gloucester is 6.7h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Act with care - The need to guard against sun damage is communicated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Gloucester in September?
What is the average humidity in September in Gloucester?
How many days does it rain in September in Gloucester?
When it does not snow in Gloucester?
How many hours of daylight does Gloucester have in September?
When are sunrise and sunset in September in Gloucester?
How many hours of sunshine does Gloucester have in September?
What is the month with the highest UV index in Gloucester?
What is the UV index reading in September in Gloucester?
Average temperature in September
Gloucester, United Kingdom
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is August (12°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in September
Gloucester, United Kingdom
- Average pressure in September: 1016.6mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed in September
Gloucester, United Kingdom
- Average wind speed in September: 12.9km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest months (with the lowest average wind speed) are June and July (12.6km/h).
Average humidity in September
Gloucester, United Kingdom
- Average humidity in September: 84%
The months with the highest relative humidity are January, November and December (90%).
The months with the lowest relative humidity are July and August (82%).
Average rainfall in September
Gloucester, United Kingdom
- Average rainfall in September: 28mm
The wettest months (with the highest rainfall) are June and November (50mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Gloucester, United Kingdom
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (12.5 days).
Average snowfall in September
Gloucester, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Gloucester, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.1 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
Gloucester, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is July (Average sunshine: 7h and 42min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days in September
Gloucester, United Kingdom
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is March (14.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Gloucester, 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, November and December (UV index 2).
Average cloud cover in September
Gloucester, United Kingdom
- Average cloud cover in September: 53
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are April, July and September (Cloud cover 53).
Average visibility in September
Gloucester, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February and March (9km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (8km).
