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
As Gunnislake transitions into September, the average high-temperature stands at a still enjoyable 16.4°C (61.5°F), offering little variation from the preceding month. In September, Gunnislake experiences an average nighttime temperature of 10.3°C (50.5°F).Humidity
In September, the average relative humidity is 87%.Rainfall
In Gunnislake, in September, it is raining for 13 days, with typically 30mm (1.18") of accumulated precipitation. In Gunnislake, during the entire year, the rain falls for 181.5 days and collects up to 531mm (20.91") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Gunnislake, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:32 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:16 am and sunset at 6:56 pm BST.
Sunshine
The average sunshine in September is 6.3h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. 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 average September temperature?
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 Gunnislake have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Gunnislake have in September?
What is the month with the highest UV index in Gunnislake?
What is the UV index reading in September?
Average temperature in September
Gunnislake, United Kingdom
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is July (18.6°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in September: 10.3°C
The months with the highest average low temperature are July and August (11.9°C).
The coldest month (with the lowest average low temperature) is February (3°C).
Average pressure in September
Gunnislake, 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 (1010.3mbar).
Average wind speed in September
Gunnislake, United Kingdom
- Average wind speed in September: 15.6km/h
The windiest month (with the highest average wind speed) is February (21.7km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in September
Gunnislake, United Kingdom
- Average humidity in September: 87%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Gunnislake, United Kingdom
- Average rainfall in September: 30mm
The wettest months (with the highest rainfall) are November and December (64mm).
The driest month (with the least rainfall) is May (28mm).
Average rainfall days in September
Gunnislake, United Kingdom
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is November (18.6 days).
The months with the least rainy days are February and September (13 days).
Average snowfall in September
Gunnislake, 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
Gunnislake, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gunnislake, 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: 6h and 2min
The month with the most sunshine is April (Average sunshine: 7h and 6min).
The month with the least sunshine is November (Average sunshine: 3h and 18min).
Average sunshine days in September
Gunnislake, United Kingdom
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is April (13.6 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in September
Gunnislake, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (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
Gunnislake, United Kingdom
- Average cloud cover in September: 58
The month with the most cloud cover is November (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 53).
Average visibility in September
Gunnislake, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, June, October, November and December (9km).
The months with the lowest visibility are May, July, August and September (8km).
