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
Weather in September
Temperature
In September, the average high-temperature registers at a still mild 13.1°C (55.6°F), nearly identical to August's 14.9°C (58.8°F). In September, the temperature drops to an average of 7.5°C (45.5°F) at night.Humidity
In Cairndow, the average relative humidity in September is 91%.Rainfall
In September, the rain falls for 21.5 days. Throughout September, 73mm (2.87") of precipitation is accumulated. Throughout the year, there are 249.6 rainfall days, and 1043mm (41.06") of precipitation is accumulated.Snowfall
In Cairndow, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 45min.On the first day of the month, sunrise is at 6:24 am and sunset at 8:14 pm. On the last day of September, in Cairndow, sunrise is at 7:22 am and sunset at 6:57 pm BST.
Sunshine
The average sunshine in September is 4.3h.UV index
The months with the highest UV index in Cairndow are May through September, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 3 in September suggests the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the usual temperature for Cairndow in September?
What is the average humidity in September in Cairndow?
How much does it rain in Cairndow in September?
When it does not snow in Cairndow?
What is the average length of the day in September in Cairndow?
What time are sunrise and sunset in September in Cairndow?
How many hours of sunshine does Cairndow have in September?
What is the month with the highest UV index in Cairndow?
What is the UV index reading in September in Cairndow?
Average temperature in September
Cairndow, United Kingdom
- Average high temperature in September: 13.1°C
The warmest month (with the highest average high temperature) is July (15.5°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 7.5°C
The month with the highest average low temperature is July (8.9°C).
The coldest month (with the lowest average low temperature) is February (0°C).
Average pressure in September
Cairndow, United Kingdom
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is November (1006.4mbar).
Average wind speed in September
Cairndow, United Kingdom
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest month (with the lowest average wind speed) is June (10.2km/h).
Average humidity in September
Cairndow, United Kingdom
- Average humidity in September: 91%
The months with the highest relative humidity are January, October, November and December (92%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in September
Cairndow, United Kingdom
- Average rainfall in September: 73mm
The wettest month (with the highest rainfall) is December (118mm).
The driest month (with the least rainfall) is April (47mm).
Average rainfall days in September
Cairndow, United Kingdom
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is February (18 days).
Average snowfall in September
Cairndow, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (83mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Cairndow, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.3 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
Cairndow, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 4h and 2min
The month with the most sunshine is June (Average sunshine: 6h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Cairndow, United Kingdom
- Average sunshine days in September: 6.2 days
The months with the most sunshine days are April and May (8.8 days).
The month with the least sunshine days is July (4.2 days).
Average UV index in September
Cairndow, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June, July, August and September (UV index 3).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Cairndow, United Kingdom
- Average cloud cover in September: 74
The month with the most cloud cover is August (Cloud cover 76).
The month with the least cloud cover is April (Cloud cover 63).
Average visibility in September
Cairndow, United Kingdom
- Average visibility in September: 7km
The months with the highest visibility are February, March, April, May, June and December (8km).
The months with the lowest visibility are January, July, August, September, October and November (7km).
Cairndow, United Kingdom
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