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 transition from August to September brings an average high-temperature of a mild 14.3°C (57.7°F), barely different from August's 16°C (60.8°F). September's average low-temperature reading settles at a frosty 8.8°C (47.8°F).Humidity
In Johnby, the average relative humidity in September is 89%.Rainfall
In Johnby, in September, during 20 rainfall days, 69mm (2.72") of precipitation is typically accumulated. In Johnby, during the entire year, the rain falls for 242.9 days and collects up to 963mm (37.91") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 43min.On the first day of the month, sunrise is at 6:19 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:13 am and sunset at 6:49 pm BST.
Sunshine
In September, the average sunshine is 5.4h.UV index
In September, the average daily maximum UV index in Johnby is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Johnby in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Johnby?
How many hours of daylight does Johnby have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Johnby, United Kingdom
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is July (16.7°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 8.8°C
The month with the highest average low temperature is August (10.3°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).
Average pressure in September
Johnby, United Kingdom
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008mbar).
Average wind speed in September
Johnby, United Kingdom
- Average wind speed in September: 14.6km/h
The windiest month (with the highest average wind speed) is December (19.9km/h).
The calmest month (with the lowest average wind speed) is June (12.2km/h).
Average humidity in September
Johnby, United Kingdom
- Average humidity in September: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Johnby, United Kingdom
- Average rainfall in September: 69mm
The wettest month (with the highest rainfall) is December (101mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in September
Johnby, United Kingdom
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is February (16.3 days).
Average snowfall in September
Johnby, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (49mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Johnby, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 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
Johnby, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is April (Average sunshine: 6h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Johnby, United Kingdom
- Average sunshine days in September: 7.6 days
The month with the most sunshine days is April (9.9 days).
The months with the least sunshine days are July and August (4.4 days).
Average UV index in September
Johnby, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June and July (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
Johnby, United Kingdom
- Average cloud cover in September: 64
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in September
Johnby, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are March, April and May (9km).
The months with the lowest visibility are January, February, June, July, August, September, October, November and December (8km).
