September weather forecastAthy, Ireland

September

Weather in September

September, the first month of the autumn in Athy, is also a moderate month, with temperature in the range of an average high of 15.5°C (59.9°F) and an average low of 8.4°C (47.1°F).

Temperature

Athy marks the start of September with an average high-temperature of a moderate 15.5°C (59.9°F), hinting at a slight fluctuation from August's 17.4°C (63.3°F). Throughout September, Athy encounters an average temperature drop to a frosty 8.4°C (47.1°F).

Humidity

The average relative humidity in September in Athy is 90%.

Rainfall

In Athy, during September, the rain falls for 11.3 days and regularly aggregates up to 17mm (0.67") of precipitation. In Athy, during the entire year, the rain falls for 167.6 days and collects up to 283mm (11.14") of precipitation.

Snowfall

In Athy, snow does not fall in April through October.

Daylight

The average length of the day in September in Athy is 12h and 40min.
On the first day of September in Athy, sunrise is at 6:39 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:06 pm IST.

Sunshine

The average sunshine in September in Athy is 5.9h.

UV index

In Athy, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

During September, Athy experiences an average high-temperature of 15.5°C (59.9°F) and a low-temperature of 8.4°C (47.1°F).

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

In Athy, in September, during 11.3 rainfall days, 17mm (0.67") of precipitation is typically accumulated.

April through October are months without snowfall.

In September, the average day length is 12h and 40min.

In September, on the first day of the month, sunrise is at 6:39 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:06 pm IST.

In September, the average sunshine duration is 5.9h.

In Athy, Ireland, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Athy, Ireland

  • Average high temperature in September: 15.5°C

The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (7°C).

  • Average low temperature in September: 8.4°C

The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).

Average pressure in September
Athy, Ireland

  • Average pressure in September: 1015.7mbar

The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.5mbar).

Average wind speed in September
Athy, Ireland

  • Average wind speed in September: 13.9km/h

The windiest month (with the highest average wind speed) is February (19km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).

Average humidity in September
Athy, Ireland

  • Average humidity in September: 90%

The months with the highest relative humidity are November and December (92%).
The month with the lowest relative humidity is April (86%).

Average rainfall in September
Athy, Ireland

  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is November (41mm).
The driest month (with the least rainfall) is March (16mm).

Average rainfall days in September
Athy, Ireland

  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is September (11.3 days).

Average snowfall in September
Athy, Ireland

  • Average snowfall in September: 0mm

The month with the highest snowfall is November (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Athy, 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 and October (0 days).

Average daylight in September /
Average sunshine in September
Athy, Ireland

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).

  • Average sunshine in September: 5h and 54min

The month with the most sunshine is May (Average sunshine: 6h and 24min).
The months with the least sunshine are February, November and December (Average sunshine: 3h and 48min).

Average sunshine days in September
Athy, Ireland

  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is November (13.9 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in September
Athy, Ireland

  • Average UV index in September: 3

The months with the highest UV index are 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
Athy, Ireland

  • Average cloud cover in September: 62

The month with the most cloud cover is July (Cloud cover 68).
The month with the least cloud cover is April (Cloud cover 58).

Average visibility in September
Athy, Ireland

  • Average visibility in September: 7km

The months with the highest visibility are February, March and December (9km).
The months with the lowest visibility are July, August and September (7km).