September weather forecastAlloa, United Kingdom
September
Weather in September
September, the first month of the autumn in Alloa, is still a mild month, with an average temperature fluctuating between 7.9°C (46.2°F) and 14.2°C (57.6°F).Temperature
Alloa sees the arrival of September with an average high-temperature of a mild 14.2°C (57.6°F), indicating a subtle variation from August. In September, Alloa experiences a temperature dip to an average of 7.9°C (46.2°F) at night.Humidity
In September, the average relative humidity in Alloa, United Kingdom, is 89%.Rainfall
In Alloa, in September, during 14.7 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, in Alloa, there are 180.3 rainfall days, and 388mm (15.28") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Alloa, United Kingdom.Daylight
The average length of the day in September in Alloa 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, in Alloa, sunrise is at 7:17 am and sunset at 6:52 pm BST.
Sunshine
In September, the average sunshine in Alloa is 5.4h.UV index
In Alloa, United Kingdom, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during September translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alloa, United Kingdom
- Average high temperature in September: 14.2°C
The warmest month (with the highest average high temperature) is July (16.9°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in September: 7.9°C
The month with the highest average low temperature is July (9.4°C).
The coldest month (with the lowest average low temperature) is January (0.5°C).
Average pressure in September
Alloa, United Kingdom
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1006.7mbar).
Average wind speed in September
Alloa, United Kingdom
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is January (16.9km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).
Average humidity in September
Alloa, United Kingdom
- Average humidity in September: 89%
The month with the highest relative humidity is November (91%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall in September
Alloa, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is August (46mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Alloa, United Kingdom
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (13 days).
Average snowfall in September
Alloa, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (27mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Alloa, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 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
Alloa, 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 24min
The month with the most sunshine is June (Average sunshine: 6h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Alloa, United Kingdom
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is April (13.3 days).
The month with the least sunshine days is August (9.9 days).
Average UV index in September
Alloa, 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, April, November and December (UV index 2).
Average cloud cover in September
Alloa, United Kingdom
- Average cloud cover in September: 66
The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in September
Alloa, United Kingdom
- Average visibility in September: 7km
The months with the highest visibility are March and April (9km).
The months with the lowest visibility are July, August and September (7km).
