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
The advent of September brings an average high-temperature of a still refreshing 13.2°C (55.8°F), almost identical to the preceding month. An average low-temperature of 11.7°C (53.1°F) characterizes Dounby's September nights.Humidity
In Dounby, United Kingdom, the average relative humidity in September is 83%.Rainfall
In Dounby, during September, the rain falls for 18.9 days and regularly aggregates up to 45mm (1.77") of precipitation. Throughout the year, in Dounby, there are 233.4 rainfall days, and 572mm (22.52") of precipitation is accumulated.Snowfall
In Dounby, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 50min.On the first day of September in Dounby, United Kingdom, sunrise is at 6:11 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 6:48 pm BST.
Sunshine
In Dounby, the average sunshine in September is 6.1h.UV index
The months with the highest UV index in Dounby are June, July and September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What are the temperatures in Dounby in September?
What is the average humidity in September in Dounby?
How much does it rain in Dounby in September?
When it does not snow in Dounby?
What is the average length of the day in September in Dounby?
What time are sunrise and sunset in September in Dounby?
How many hours of sunshine does Dounby have in September?
What is the month with the highest UV index in Dounby?
What is the UV index reading in September in Dounby?
Average temperature in September
Dounby, United Kingdom
- Average high temperature in September: 13.2°C
The warmest month (with the highest average high temperature) is August (14.2°C).
The month with the lowest average high temperature is February (7°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is February (5.5°C).
Average pressure in September
Dounby, United Kingdom
- Average pressure in September: 1010.7mbar
The months with the highest atmospheric pressure are May and June (1014.4mbar).
The month with the lowest atmospheric pressure is December (1003.7mbar).
Average wind speed in September
Dounby, United Kingdom
- Average wind speed in September: 29.6km/h
The windiest month (with the highest average wind speed) is January (38.7km/h).
The calmest months (with the lowest average wind speed) are June and July (22.5km/h).
Average humidity in September
Dounby, United Kingdom
- Average humidity in September: 83%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and December (75%).
Average rainfall in September
Dounby, United Kingdom
- Average rainfall in September: 45mm
The wettest months (with the highest rainfall) are January and December (60mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in September
Dounby, United Kingdom
- Average rainfall days in September: 18.9 days
The month with the highest number of rainy days is December (23.5 days).
The month with the least rainy days is June (15.5 days).
Average snowfall in September
Dounby, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Dounby, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and March (1.2 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
Dounby, United Kingdom
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 6h and 1min
The month with the most sunshine is June (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Dounby, United Kingdom
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is May (11.4 days).
The month with the least sunshine days is December (4.8 days).
Average UV index in September
Dounby, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June, July and September (UV index 4).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in September
Dounby, United Kingdom
- Average cloud cover in September: 60
The months with the most cloud cover are January and March (Cloud cover 67).
The months with the least cloud cover are April and May (Cloud cover 56).
Average visibility in September
Dounby, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and March (9km).
Dounby, United Kingdom
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