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
A minor adjustment in Port nan Long's average high-temperature is noted with the start of September, touching a still refreshing 13.8°C (56.8°F) from August's 14.5°C (58.1°F). September nights reveal a minor deviation from daytime highs, with a mean low-temperature of 12.6°C (54.7°F).Humidity
In Port nan Long, the average relative humidity in September is 82%.Rainfall
In September, in Port nan Long, the rain falls for 21.8 days. Throughout September, 67mm (2.64") of precipitation is accumulated. Throughout the year, in Port nan Long, there are 260.3 rainfall days, and 846mm (33.31") of precipitation is accumulated.Snowfall
January, April through November are months without snowfall.Daylight
In September, the average length of the day in Port nan Long is 12h and 47min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:26 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:05 pm BST.
Sunshine
The average sunshine in September is 5.5h.UV index
May through July and September, with an average maximum UV index of 4, are months with the highest UV index in Port nan Long. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the usual temperature for Port nan Long in September?
What is the average humidity in September in Port nan Long?
How much does it rain in Port nan Long in September?
When it does not snow in Port nan Long?
How many hours of daylight does Port nan Long have in September?
What time are sunrise and sunset in September in Port nan Long?
How long on average sun shines in September in Port nan Long?
What are the months with the highest UV index in Port nan Long?
How high is the UV index in September in Port nan Long?
Average temperature in September
Port nan Long, United Kingdom
- Average high temperature in September: 13.8°C
The warmest month (with the highest average high temperature) is August (14.5°C).
The month with the lowest average high temperature is February (8.2°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is February (6.3°C).
Average pressure in September
Port nan Long, United Kingdom
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The months with the lowest atmospheric pressure are November and December (1004.6mbar).
Average wind speed in September
Port nan Long, United Kingdom
- Average wind speed in September: 33.2km/h
The windiest month (with the highest average wind speed) is January (42.6km/h).
The calmest month (with the lowest average wind speed) is June (23.8km/h).
Average humidity in September
Port nan Long, United Kingdom
- Average humidity in September: 82%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are November and December (74%).
Average rainfall in September
Port nan Long, United Kingdom
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is December (112mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Port nan Long, United Kingdom
- Average rainfall days in September: 21.8 days
The month with the highest number of rainy days is January (26 days).
The month with the least rainy days is June (16 days).
Average snowfall in September
Port nan Long, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are February and March (2mm).
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Port nan Long, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Port nan Long, United Kingdom
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in September: 5h and 3min
The month with the most sunshine is June (Average sunshine: 8h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Port nan Long, United Kingdom
- Average sunshine days in September: 5.9 days
The month with the most sunshine days is June (11.6 days).
The month with the least sunshine days is January (2.4 days).
Average UV index in September
Port nan Long, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July and September (UV index 4).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Port nan Long, United Kingdom
- Average cloud cover in September: 63
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are April and May (Cloud cover 56).
Average visibility in September
Port nan Long, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, August, September and November (10km).
The months with the lowest visibility are January, July, October and December (9km).
Port nan Long, United Kingdom
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