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
September brings an average high-temperature of a still enjoyable 16.3°C, nearly identical to the preceding month. In September, a low-temperature average of 14.9°C is characteristic of Penzance, marking a minor shift from daytime temperatures.Humidity
The average relative humidity in September is 82%.Rainfall
In September, in Penzance, the rain falls for 9.8 days. Throughout September, 13mm of precipitation is accumulated. Throughout the year, there are 145.1 rainfall days, and 224mm of precipitation is accumulated.Snowfall
In Penzance, snow does not fall in February through December.Sea temperature
In Penzance, the average seawater temperature in September is 16.5°C.Note: The majority of individuals find swimming in 16.5°C to be unenjoyable. The difficulty in controlling breathing rises as the temperature decreases from 21°C to 15°C.
Daylight
In Penzance, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 6:36 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:04 pm BST.
Sunshine
The average sunshine in September in Penzance is 7.4h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
FAQ
What are the temperatures in Penzance in September?
What is the average humidity in September in Penzance?
How much does it rain in Penzance in September?
When it does not snow in Penzance?
How cold is the water in September in Penzance?
What is the average length of the day in September in Penzance?
When are sunrise and sunset in September in Penzance?
How long on average sun shines in September in Penzance?
What is the UV index reading in September in Penzance?
Average temperature in September
Penzance, 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
Penzance, 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
Penzance, 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
Penzance, 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
Penzance, 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
Penzance, 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
Penzance, 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
Penzance, 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 sea temperature in September
Penzance, United Kingdom
- Average sea temperature in September: 16.5°C
The best month for swimming (with the highest average sea temperature) is August (17.1°C).
The coldest month (with the lowest average sea temperature) is March (9.7°C).
Average daylight in September /
Average sunshine in September
Penzance, 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
Penzance, 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
Penzance, 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
Penzance, 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
Penzance, 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).
Penzance, United Kingdom
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