September weather forecastLimerick, Ireland
September
Weather in September
September in Limerick, Ireland, ushers in the autumn season, with its weather depicting a transition from the summer's highs. Temperatures commence their decline, with the high being 15.8°C (60.4°F) and the low dropping to 8.5°C (47.3°F). Significantly, daylight dramatically reduces to 12.7 hours from the summer peak of 16.8 hours in June. Regardless, the weather remains mostly stable with similar rain and humidity patterns persisting. Therefore, September sets the stage for the shift into winter, distinguished by falling temperatures and shorter days.Temperature
Limerick experiences an average high-temperature of a moderate 15.8°C (60.4°F) in September, subtly different from August's 17.5°C (63.5°F). Limerick's temperature lowers to a mean of 8.5°C (47.3°F) during the nights in September.Humidity
The average relative humidity in September is 89%.Rainfall
The month with the least rainfall in Limerick is September, when the rain falls for 17.1 days and typically collects 39mm (1.54") of precipitation.Snowfall
In Limerick, snow does not fall in April through November.Daylight
In Limerick, Ireland, the average length of the day in September is 12h and 40min.On the first day of September, sunrise is at 6:46 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:13 pm IST.
Sunshine
In September, the average sunshine is 5.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Limerick, Ireland
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (18.1°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in September: 8.5°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (2.2°C).
Average pressure in September
Limerick, Ireland
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in September
Limerick, Ireland
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Limerick, Ireland
- Average humidity in September: 89%
The months with the highest relative humidity are November and December (91%).
The month with the lowest relative humidity is April (85%).
Average rainfall in September
Limerick, Ireland
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is November (62mm).
The driest month (with the least rainfall) is September (39mm).
Average rainfall days in September
Limerick, Ireland
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is July (23 days).
The month with the least rainy days is February (16.4 days).
Average snowfall in September
Limerick, Ireland
- Average snowfall in September: 0mm
The months with the highest snowfall are January and December (17mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Limerick, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Limerick, 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 30min
The month with the most sunshine is June (Average sunshine: 7h and 0min).
The months with the least sunshine are February and December (Average sunshine: 3h and 54min).
Average sunshine days in September
Limerick, Ireland
- Average sunshine days in September: 8 days
The month with the most sunshine days is March (10.2 days).
The month with the least sunshine days is August (3.9 days).
Average UV index in September
Limerick, Ireland
- Average UV index in September: 3
The months with the highest UV index are May and 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
Limerick, Ireland
- Average cloud cover in September: 63
The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in September
Limerick, Ireland
- Average visibility in September: 8km
The month with the highest visibility is February (9km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (8km).
