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
September brings a marginal elevation to a still comfortable 16.3°C (61.3°F) from August's 17.4°C (63.3°F) in Perranuthnoe's average high-temperatures. Nighttime temperatures record an average of 14.9°C (58.8°F) throughout September.Humidity
In September, the average relative humidity is 82%.Rainfall
In Perranuthnoe, in September, it is raining for 9.8 days, with typically 13mm (0.51") of accumulated precipitation. In Perranuthnoe, during the entire year, the rain falls for 145.1 days and collects up to 224mm (8.82") of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September is 12h and 37min.On the first day of September in Perranuthnoe, sunrise is at 6:37 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:01 pm BST.
Sunshine
In September, the average sunshine in Perranuthnoe is 7.4h.UV index
In Perranuthnoe, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Perranuthnoe?
What is the average humidity in September in Perranuthnoe?
How many days does it rain in September in Perranuthnoe?
When it does not snow in Perranuthnoe?
What is the average length of the day in September in Perranuthnoe?
When is the sunrise / sunset in September in Perranuthnoe?
How long on average sun shines in September in Perranuthnoe?
How high is the UV index in September in Perranuthnoe?
Average temperature in September
Perranuthnoe, United Kingdom
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is August (17.4°C).
The month with the lowest average high temperature is February (9.4°C).
- Average low temperature in September: 14.9°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (7.3°C).
Average pressure in September
Perranuthnoe, United Kingdom
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Perranuthnoe, United Kingdom
- Average wind speed in September: 25.4km/h
The windiest month (with the highest average wind speed) is December (34.4km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).
Average humidity in September
Perranuthnoe, United Kingdom
- Average humidity in September: 82%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January, February, November and December (79%).
Average rainfall in September
Perranuthnoe, United Kingdom
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is November (36mm).
The driest month (with the least rainfall) is May (10mm).
Average rainfall days in September
Perranuthnoe, United Kingdom
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is November (16.3 days).
The month with the least rainy days is June (9.2 days).
Average snowfall in September
Perranuthnoe, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Perranuthnoe, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Perranuthnoe, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is April (Average sunshine: 8h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Perranuthnoe, United Kingdom
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is May (19.2 days).
The month with the least sunshine days is November (9.7 days).
Average UV index in September
Perranuthnoe, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Perranuthnoe, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Perranuthnoe, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
