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
As Port Isaac welcomes September, the average high-temperature records at a still comfortable 16.7°C (62.1°F), marking an insignificant deviation from the prior month. Port Isaac's nocturnal average in September closely mirrors its daytime temperatures, settling at a mild 13.2°C (55.8°F).Humidity
The average relative humidity in September in Port Isaac, United Kingdom, is 83%.Rainfall
In Port Isaac, during September, the rain falls for 14.2 days and regularly aggregates up to 40mm (1.57") of precipitation. In Port Isaac, United Kingdom, during the entire year, the rain falls for 197.9 days and collects up to 600mm (23.62") of precipitation.Snowfall
In Port Isaac, snow does not fall in March through October.Daylight
The average length of the day in September in Port Isaac is 12h and 37min.On the first day of the month, sunrise is at 6:34 am and sunset at 8:03 pm. On the last day of September, in Port Isaac, sunrise is at 7:18 am and sunset at 6:59 pm BST.
Sunshine
In September, the average sunshine is 7h.UV index
The months with the highest UV index are May through October, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise prevention - Warding off sunburn is urged. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the temperature in September in Port Isaac?
What is the average humidity in September in Port Isaac?
How many days does it rain in September in Port Isaac?
When it does not snow in Port Isaac?
How many hours of daylight does Port Isaac have in September?
What time are sunrise and sunset in September in Port Isaac?
How many hours of sunshine does Port Isaac have in September?
What are the months with the highest UV index in Port Isaac?
How high is the UV index in September in Port Isaac?
Average temperature in September
Port Isaac, United Kingdom
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is July (17.9°C).
The month with the lowest average high temperature is February (8.7°C).
- Average low temperature in September: 13.2°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is February (5.9°C).
Average pressure in September
Port Isaac, 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 (1010.2mbar).
Average wind speed in September
Port Isaac, United Kingdom
- Average wind speed in September: 20.9km/h
The windiest month (with the highest average wind speed) is December (29km/h).
The calmest month (with the lowest average wind speed) is July (18.3km/h).
Average humidity in September
Port Isaac, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are June, July and August (84%).
The months with the lowest relative humidity are February, March and November (81%).
Average rainfall in September
Port Isaac, United Kingdom
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is May (29mm).
Average rainfall days in September
Port Isaac, United Kingdom
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is November (21 days).
The month with the least rainy days is May (14 days).
Average snowfall in September
Port Isaac, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are February and December (3mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Port Isaac, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Port Isaac, 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 6min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is April (Average sunshine: 8h and 6min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Port Isaac, United Kingdom
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is May (14.6 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in September
Port Isaac, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August, September and October (UV index 4).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Port Isaac, United Kingdom
- Average cloud cover in September: 51
The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 46).
Average visibility in September
Port Isaac, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is May (9km).
Port Isaac, United Kingdom
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