September weather forecast
Glenfarne, Ireland

September

Weather in September

September, the first month of the autumn in Glenfarne, is also a moderate month, with an average temperature fluctuating between 14.5°C (58.1°F) and 8.5°C (47.3°F).

Temperature

Glenfarne commences September with an average high-temperature of a moderate 14.5°C (58.1°F), maintaining a close resemblance to the previous month. During September, Glenfarne witnesses a consistent average low-temperature of 8.5°C (47.3°F).

Humidity

In September, the average relative humidity in Glenfarne is 90%.

Rainfall

In Glenfarne, during September, the rain falls for 19.6 days and regularly aggregates up to 49mm (1.93") of precipitation. In Glenfarne, during the entire year, the rain falls for 238.5 days and collects up to 806mm (31.73") of precipitation.

Snowfall

In Glenfarne, Ireland, snow does not fall in May through October.

Daylight

The average length of the day in September in Glenfarne is 12h and 42min.
On the first day of the month, sunrise is at 6:40 am and sunset at 8:22 pm. On the last day of September, in Glenfarne, Ireland, sunrise is at 7:33 am and sunset at 7:10 pm IST.

Sunshine

In Glenfarne, the average sunshine in September is 4.6h.

UV index

In Glenfarne, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 3 during September translates into the following guidance:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

What is the temperature in September in Glenfarne?
Glenfarne in September has an average high-temperature of 14.5°C (58.1°F) and an average low-temperature of 8.5°C (47.3°F).
What is the average humidity in September in Glenfarne?
In Glenfarne, the average relative humidity in September is 90%.
How many days does it rain in September in Glenfarne?
In Glenfarne, Ireland, in September, during 19.6 rainfall days, 49mm (1.93") of precipitation is typically accumulated.
When it does not snow in Glenfarne?
In Glenfarne, snow does not fall in May through October.
What is the average length of the day in September in Glenfarne?
The average day length in September is 12h and 42min.
When is the sunrise / sunset in September in Glenfarne?
In September, on the first day of the month, sunrise is at 6:40 am and sunset at 8:22 pm. On the last day of the month, in Glenfarne, Ireland, sunrise is at 7:33 am and sunset at 7:10 pm IST.
How long on average sun shines in September in Glenfarne?
In Glenfarne, Ireland, the average sunshine duration in September is 4.6h.
What is the UV index reading in September in Glenfarne?
The average daily maximum UV index in September in Glenfarne, Ireland, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Glenfarne, Ireland
  • Average high temperature in September: 14.5°C

The warmest month (with the highest average high temperature) is July (16.7°C).
The month with the lowest average high temperature is January (6°C).

  • Average low temperature in September: 8.5°C

The month with the highest average low temperature is July (10.1°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).

Average pressure in September
Glenfarne, Ireland
  • Average pressure in September: 1014.1mbar

The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1007.1mbar).

Average wind speed in September
Glenfarne, Ireland
  • Average wind speed in September: 13km/h

The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is July (11.4km/h).

Average humidity in September
Glenfarne, Ireland
  • Average humidity in September: 90%

The months with the highest relative humidity are January, November and December (91%).
The month with the lowest relative humidity is April (84%).

Average rainfall in September
Glenfarne, Ireland
  • Average rainfall in September: 49mm

The wettest month (with the highest rainfall) is August (88mm).
The driest month (with the least rainfall) is April (42mm).

Average rainfall days in September
Glenfarne, Ireland
  • Average rainfall days in September: 19.6 days

The month with the highest number of rainy days is August (25.1 days).
The month with the least rainy days is April (17 days).

Average snowfall in September
Glenfarne, Ireland
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (64mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Glenfarne, Ireland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.9 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
Glenfarne, Ireland
  • 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: 4h and 4min

The month with the most sunshine is June (Average sunshine: 6h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in September
Glenfarne, Ireland
  • Average sunshine days in September: 6.8 days

The month with the most sunshine days is April (9.1 days).
The month with the least sunshine days is August (3.9 days).

Average UV index in September
Glenfarne, Ireland
  • Average UV index in September: 3

The month with the highest UV index is June (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
Glenfarne, Ireland
  • Average cloud cover in September: 70

The month with the most cloud cover is August (Cloud cover 75).
The month with the least cloud cover is April (Cloud cover 62).

Average visibility in September
Glenfarne, Ireland
  • Average visibility in September: 7km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (8km).
The months with the lowest visibility are July, August and September (7km).

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