September weather forecast
Rathcoffey, Ireland

September

Weather in September

The first month of the autumn, September, is still a mild month in Rathcoffey, Ireland, with temperature in the range of an average high of 15.6°C (60.1°F) and an average low of 9°C (48.2°F).

Temperature

Rathcoffey, Ireland, greets September with an average high-temperature of a mild 15.6°C (60.1°F), marking a slight deviation from the preceding month. In Rathcoffey, the September nights cool down to an average low of 9°C (48.2°F).

Humidity

The average relative humidity in September in Rathcoffey, Ireland, is 89%.

Rainfall

In September, the rain falls for 12.7 days. Throughout September, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 170.7 rainfall days, and 271mm (10.67") of precipitation is accumulated.

Snowfall

In Rathcoffey, snow does not fall in April through November.

Daylight

In Rathcoffey, the average length of the day in September is 12h and 41min.
On the first day of the month, sunrise is at 6:37 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:27 am and sunset at 7:05 pm IST.

Sunshine

In Rathcoffey, Ireland, the average sunshine in September is 5.8h.

UV index

The average daily maximum UV index in September in Rathcoffey, Ireland, is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

What is the usual temperature for Rathcoffey in September?
The average high-temperature, in September, in Rathcoffey, is 15.6°C (60.1°F), while the average low-temperature is 9°C (48.2°F).
What is the average humidity in September in Rathcoffey?
In September, the average relative humidity in Rathcoffey is 89%.
How many days does it rain in September in Rathcoffey?
In Rathcoffey, Ireland, during September, the rain falls for 12.7 days and regularly aggregates up to 20mm (0.79") of precipitation.
When it does not snow in Rathcoffey?
April through November are months without snowfall in Rathcoffey.
What is the average length of the day in September in Rathcoffey?
The average day length in September in Rathcoffey is 12h and 41min.
When are sunrise and sunset in September in Rathcoffey?
In September, on the first day of the month, sunrise is at 6:37 am and sunset at 8:15 pm. On the last day of the month, in Rathcoffey, sunrise is at 7:27 am and sunset at 7:05 pm IST.
How many hours of sunshine does Rathcoffey have in September?
In September, the average sunshine duration is 5.8h.
What is the UV index reading in September in Rathcoffey?
In September, the average daily maximum UV index in Rathcoffey, Ireland, is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Rathcoffey, Ireland
  • Average high temperature in September: 15.6°C

The warmest month (with the highest average high temperature) is July (17.7°C).
The month with the lowest average high temperature is January (6.9°C).

  • Average low temperature in September: 9°C

The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).

Average pressure in September
Rathcoffey, Ireland
  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008.2mbar).

Average wind speed in September
Rathcoffey, Ireland
  • Average wind speed in September: 14.7km/h

The windiest month (with the highest average wind speed) is January (20.3km/h).
The calmest months (with the lowest average wind speed) are June and July (13.3km/h).

Average humidity in September
Rathcoffey, Ireland
  • Average humidity in September: 89%

The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are March and April (85%).

Average rainfall in September
Rathcoffey, Ireland
  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are January, April and October (16mm).

Average rainfall days in September
Rathcoffey, Ireland
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (10.6 days).

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

The month with the highest snowfall is January (15mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Rathcoffey, Ireland
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in September: 5h and 5min

The month with the most sunshine is April (Average sunshine: 6h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in September
Rathcoffey, Ireland
  • Average sunshine days in September: 10.7 days

The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is July (5.8 days).

Average UV index in September
Rathcoffey, 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, February, March, November and December (UV index 2).

Average cloud cover in September
Rathcoffey, Ireland
  • Average cloud cover in September: 60

The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).

Average visibility in September
Rathcoffey, Ireland
  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).

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