September weather forecastBlacksod, Ireland
September
Weather in September
September, the first month of the autumn in Blacksod, is still a mild month, with temperature in the range of an average high of 14.5°C (58.1°F) and an average low of 13°C (55.4°F).Temperature
September's onset sees an average high-temperature of a still moderate 14.5°C (58.1°F), exhibiting a slight fluctuation from the previous month. Blacksod's nocturnal September readings average at a still moderate 13°C (55.4°F), showing little variation from the daytime temperatures.Humidity
In Blacksod, the average relative humidity in September is 82%.Rainfall
In September, the rain falls for 20.9 days. Throughout September, 62mm (2.44") of precipitation is accumulated. In Blacksod, during the entire year, the rain falls for 261.2 days and collects up to 953mm (37.52") of precipitation.Snowfall
February through October and December are months without snowfall.Daylight
The average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:49 am and sunset at 8:30 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:18 pm IST.
Sunshine
The average sunshine in September is 5.6h.UV index
In Blacksod, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Blacksod, Ireland
- Average high temperature in September: 14.5°C
The warmest month (with the highest average high temperature) is August (15.3°C).
The month with the lowest average high temperature is February (8.9°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (6.7°C).
Average pressure in September
Blacksod, Ireland
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed in September
Blacksod, Ireland
- Average wind speed in September: 28km/h
The windiest month (with the highest average wind speed) is December (36.7km/h).
The calmest month (with the lowest average wind speed) is July (22.4km/h).
Average humidity in September
Blacksod, Ireland
- Average humidity in September: 82%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are February, March, November and December (78%).
Average rainfall in September
Blacksod, Ireland
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is December (107mm).
The driest month (with the least rainfall) is April (49mm).
Average rainfall days in September
Blacksod, Ireland
- Average rainfall days in September: 20.9 days
The month with the highest number of rainy days is August (24.9 days).
The month with the least rainy days is April (17.5 days).
Average snowfall in September
Blacksod, Ireland
- Average snowfall in September: 0mm
The months with the highest snowfall are January and November (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Blacksod, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Blacksod, Ireland
- Average daylight in September: 12h and 42min
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 30min).
- Average sunshine in September: 5h and 36min
The month with the most sunshine is June (Average sunshine: 8h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 18min).
Average sunshine days in September
Blacksod, Ireland
- Average sunshine days in September: 6 days
The month with the most sunshine days is May (10.8 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in September
Blacksod, Ireland
- Average UV index in September: 3
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Blacksod, Ireland
- Average cloud cover in September: 61
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in September
Blacksod, Ireland
- Average visibility in September: 9km
The months with the highest visibility are February, April, June and November (10km).
The months with the lowest visibility are January, March, May, July, August, September, October and December (9km).
