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
September commences with an average high-temperature of a moderate 15°C (59°F), showing little deviation from August's 16.3°C (61.3°F). Portaferry's evenings during September maintain an average temperature of 12.3°C (54.1°F), aligning closely with the daytime temperatures.Humidity
The average relative humidity in September in Portaferry is 83%.Rainfall
In Portaferry, in September, during 10.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In Portaferry, during the entire year, the rain falls for 167.4 days and collects up to 395mm (15.55") of precipitation.Snowfall
In Portaferry, snow does not fall in April through October.Daylight
In Portaferry, the average length of the day in September is 12h and 42min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:13 pm. On the last day of September, in Portaferry, United Kingdom, sunrise is at 7:23 am and sunset at 7:00 pm BST.
Sunshine
In Portaferry, the average sunshine in September is 6.9h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Portaferry, United Kingdom. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Take necessary precautions - Protection from skin and eye injury is mandatory. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the average September temperature in Portaferry?
What is the average humidity in September in Portaferry?
How many days does it rain in September in Portaferry?
When it does not snow in Portaferry?
How many hours of daylight does Portaferry have in September?
When is the sunrise / sunset in September in Portaferry?
How long on average sun shines in September in Portaferry?
What are the months with the highest UV index in Portaferry?
How high is the UV index in September in Portaferry?
Average temperature in September
Portaferry, United Kingdom
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (7.5°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.9°C).
Average pressure in September
Portaferry, United Kingdom
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).
Average wind speed in September
Portaferry, United Kingdom
- Average wind speed in September: 22.3km/h
The windiest month (with the highest average wind speed) is December (28.9km/h).
The calmest month (with the lowest average wind speed) is June (17.3km/h).
Average humidity in September
Portaferry, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are July and August (85%).
The months with the lowest relative humidity are March, April and November (81%).
Average rainfall in September
Portaferry, United Kingdom
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is November (52mm).
The driest month (with the least rainfall) is May (20mm).
Average rainfall days in September
Portaferry, United Kingdom
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in September
Portaferry, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Portaferry, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Portaferry, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 6h and 5min
The months with the most sunshine are May and June (Average sunshine: 7h and 54min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).
Average sunshine days in September
Portaferry, United Kingdom
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is August (9.5 days).
Average UV index in September
Portaferry, 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 and December (UV index 2).
Average cloud cover in September
Portaferry, United Kingdom
- Average cloud cover in September: 51
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are April and May (Cloud cover 49).
Average visibility in September
Portaferry, 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).
Portaferry, United Kingdom
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