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 commencement of September introduces an average high-temperature of a moderate 15°C (59°F), closely mirroring the preceding month. Callaly's average low-temperature in the month of September is recorded at a chilly 9.2°C (48.6°F).Humidity
The average relative humidity in September is 85%.Rainfall
In Callaly, during September, the rain falls for 11.5 days and regularly aggregates up to 19mm (0.75") of precipitation. Throughout the year, there are 161.3 rainfall days, and 295mm (11.61") of precipitation is accumulated.Snowfall
In Callaly, snow does not fall in May through October.Daylight
In Callaly, the average length of the day in September is 12h and 44min.On the first day of the month, sunrise is at 6:14 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:45 pm BST.
Sunshine
The average sunshine in September is 6.9h.UV index
In Callaly, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation 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. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Callaly in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Callaly have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Callaly?
Average temperature in September
Callaly, United Kingdom
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is August (10.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.5°C).
Average pressure in September
Callaly, United Kingdom
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1007.6mbar).
Average wind speed in September
Callaly, United Kingdom
- Average wind speed in September: 15.6km/h
The windiest month (with the highest average wind speed) is January (20.2km/h).
The calmest month (with the lowest average wind speed) is June (12.9km/h).
Average humidity in September
Callaly, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are January, November and December (88%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Callaly, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Callaly, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Callaly, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (34mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Callaly, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.2 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
Callaly, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 6h and 5min
The months with the most sunshine are April and August (Average sunshine: 7h and 18min).
The months with the least sunshine are October and November (Average sunshine: 4h and 6min).
Average sunshine days in September
Callaly, United Kingdom
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is January (14.5 days).
The month with the least sunshine days is August (7.7 days).
Average UV index in September
Callaly, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (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
Callaly, United Kingdom
- Average cloud cover in September: 52
The months with the most cloud cover are February and November (Cloud cover 59).
The months with the least cloud cover are April and September (Cloud cover 52).
Average visibility in September
Callaly, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
