September weather forecastClackmannan, United Kingdom
September
Weather in September
September, the first month of the autumn in Clackmannan, is still a mild month, with an average temperature varying between 14.6°C (58.3°F) and 8.5°C (47.3°F).Temperature
Entering September, the average high-temperature is recorded at a still refreshing 14.6°C (58.3°F), exhibiting a minimal shift from August's 16.7°C (62.1°F). Throughout September, the nighttime temperature in Clackmannan averages to a chilly 8.5°C (47.3°F).Humidity
In September, the average relative humidity in Clackmannan is 88%.Rainfall
April and September are months with the least rain when the rain falls for 6.9 days and typically aggregates up to 9mm (0.35") of rain.Snowfall
May through October are months without snowfall.Daylight
In Clackmannan, the average length of the day in September is 12h and 44min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:09 pm. On the last day of September, sunrise is at 7:17 am and sunset at 6:52 pm BST.
Sunshine
In Clackmannan, the average sunshine in September is 5.6h.UV index
The average daily maximum UV index in September in Clackmannan is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clackmannan, United Kingdom
- Average high temperature in September: 14.6°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 8.5°C
The month with the highest average low temperature is July (9.9°C).
The coldest months (with the lowest average low temperature) are January and February (1.2°C).
Average pressure in September
Clackmannan, United Kingdom
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1006.8mbar).
Average wind speed in September
Clackmannan, United Kingdom
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is July (12km/h).
Average humidity in September
Clackmannan, United Kingdom
- Average humidity in September: 88%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Clackmannan, United Kingdom
- Average rainfall in September: 9mm
The wettest months (with the highest rainfall) are July and August (24mm).
The driest months (with the least rainfall) are April and September (9mm).
Average rainfall days in September
Clackmannan, United Kingdom
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Clackmannan, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Clackmannan, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Clackmannan, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 5h and 36min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The months with the least sunshine are February and October (Average sunshine: 3h and 42min).
Average sunshine days in September
Clackmannan, United Kingdom
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (15 days).
Average UV index in September
Clackmannan, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Clackmannan, United Kingdom
- Average cloud cover in September: 63
The month with the most cloud cover is July (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in September
Clackmannan, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May and December (9km).
The months with the lowest visibility are June, July, August, September, October and November (8km).
