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 sea temperature 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 average high-temperature for September is a still enjoyable 17.7°C (63.9°F), closely aligning with the temperature of the preceding month. The low temperature average in Cowes during September reflects a slight decrease to a still refreshing 13.3°C (55.9°F) from the day's peak.Humidity
The least humid month is September, with an average relative humidity of 79%.Rainfall
In Cowes, United Kingdom, in September, it is raining for 12.5 days, with typically 30mm (1.18") of accumulated precipitation. In Cowes, during the entire year, the rain falls for 182.5 days and collects up to 469mm (18.46") of precipitation.Snowfall
In Cowes, snow does not fall in April through October.Sea temperature
The month with the warmest seawater in Cowes is September, with an average sea temperature of 17.3°C (63.1°F).Note: The majority of individuals do not enjoy swimming in water that is 17.3°C (63.1°F). Breathing control becomes more challenging as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:50 pm. On the last day of September, in Cowes, sunrise is at 7:04 am and sunset at 6:45 pm BST.
Sunshine
The average sunshine in September in Cowes is 8.3h.UV index
In September, the average daily maximum UV index in Cowes is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What is the usual temperature for Cowes in September?
What is the least humid month in Cowes?
What is the average humidity in September in Cowes?
How much does it rain in Cowes in September?
When it does not snow in Cowes?
What is the month with the warmest sea water in Cowes?
How cold is the water in September in Cowes?
What is the average length of the day in September in Cowes?
When are sunrise and sunset in September in Cowes?
How long on average sun shines in September in Cowes?
What is the UV index intensity in September in Cowes?
Average temperature in September
Cowes, United Kingdom
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is August (18.9°C).
The month with the lowest average high temperature is February (8°C).
- Average low temperature in September: 13.3°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (4.8°C).
Average pressure in September
Cowes, United Kingdom
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Cowes, United Kingdom
- Average wind speed in September: 20km/h
The windiest month (with the highest average wind speed) is December (26.2km/h).
The calmest month (with the lowest average wind speed) is July (17.6km/h).
Average humidity in September
Cowes, United Kingdom
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is September (79%).
Average rainfall in September
Cowes, United Kingdom
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is November (63mm).
The driest months (with the least rainfall) are April and May (24mm).
Average rainfall days in September
Cowes, United Kingdom
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is November (19.8 days).
The month with the least rainy days is September (12.5 days).
Average snowfall in September
Cowes, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is November (7mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Cowes, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Cowes, United Kingdom
- Average sea temperature in September: 17.3°C
The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.6°C).
Average daylight in September /
Average sunshine in September
Cowes, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Cowes, United Kingdom
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is April (15 days).
The month with the least sunshine days is November (6.7 days).
Average UV index in September
Cowes, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Cowes, United Kingdom
- Average cloud cover in September: 41
The month with the most cloud cover is November (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Cowes, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Cowes, United Kingdom
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