Limerick
Ireland
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Limerick, Ireland

September, the first month of the autumn, in Limerick, is still a comfortable month, with average temperature fluctuating between 10.8°C (51.4°F) and 17.7°C (63.9°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still enjoyable 17.7°C (63.9°F). In Limerick, the average low-temperature is 10.8°C (51.4°F).

Humidity

In Limerick, the average relative humidity in September is 69%.

Rainfall

In September, in Limerick, the rain falls for 12 days. Throughout September, 75.6mm (3") of precipitation is accumulated. In Limerick, during the entire year, the rain falls for 159 days and collects up to 977.5mm (38.5") of precipitation.

Snowfall

In Limerick snow does not fall in May through October.

Daylight

In September, the average length of the day is 12.7h.

Sunshine

The average sunshine in September is 3.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Limerick?

The average high-temperature, in September, in Limerick, is 17.7°C (63.9°F), while the average low-temperature is 10.8°C (51.4°F).

What is the average humidity in September in Limerick?

In September, the average relative humidity in Limerick is 69%.

How much does it rain in Limerick in September?

In Limerick, in September, during 12 rainfall days, 75.6mm (3") of precipitation is typically accumulated.

When it does not snow in Limerick?

May through October are months without snowfall in Limerick.

How many hours of daylight does Limerick have in September?

In Limerick, Ireland, the average length of the day in September is 12.7h.

How long on average sun shines in September in Limerick?

In Limerick, Ireland, the average sunshine in September is 3.9h.

What is the UV index intensity in September in Limerick?

In Limerick, Ireland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.
Average temperature in September - Limerick, Ireland
  • Average high temperature in September: 17.7°C

The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in September: 10.8°C

The month with the highest average low temperature is July (13°C).
Coldest months (with the lowest average low temperature) are January and February (3.2°C).

Average humidity in September - Limerick, Ireland
  • Average humidity in September: 69%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is May (63%).

Average rainfall in September - Limerick, Ireland
  • Average rainfall in September: 75.6mm

The wettest month (with the highest rainfall) is October (104.9mm).
The driest month (with the lowest rainfall) is April (59.2mm).

Average rainfall days in September - Limerick, Ireland
  • Average rainfall days in September: 12 days

Months with the highest number of rainy days are January and October (16 days).
Months with the lowest number of rainy days are April and June (11 days).

Average snowfall days in September - Limerick, Ireland
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and February (2.3 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Limerick, Ireland
  • Average daylight in September: 12.7h

The month with the longest days is June (Average daylight: 16.8h).
The month with shortest days is December (Average daylight: 7.7h).

  • Average sunshine in September: 3.9h

The month with most sunshine is May (Average sunshine: 5.8h).
The month with least sunshine is December (Average sunshine: 1.4h).

Average UV index in September - Limerick, Ireland
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 0).