Ireland Weather in September: Temperature, Precipitation, Wind
In September, Ireland has an average temperature of 14.7°C (58.5°F), with highs of 18.3°C (65°F) and lows of 11.2°C (52.2°F). It feels slightly cooler than the actual temperatures, with an average “feels like” temperature of 14.6°C (58.3°F). The humidity is high, averaging 85.1%, and there is an average of 3.33 inches of precipitation, with a high chance of rain at 86.7%. The wind speed averages 25.2 km/h (15.7 mph), with gusts up to 43.7 km/h (27.2 mph). Ireland has an average cloud cover of 66.6%, an average visibility of 16.4 km (10.2 miles), and an average UV index of 4.7. September in Ireland is relatively mild, with temperatures ranging from the low 50s°F (around 11°C) to the mid-60s°F (around 18°C). It is a transitional month, marking the end of summer and the beginning of autumn. The weather can be changeable, with a mix of sunny spells and rainy days.
What is the temperature in Ireland in September?
Average air temperature in Ireland is 14.7°C (58.5°F) in September. The outside temperature in Ireland feels like 14.6°C (58.3°F) on a typical September day. The highest average temperature during sunny days is 18.3°C (65°F) and feels like 18.3°C (65°F). The lowest average temperature after dark is 11.2°C (52.2°F) which feels like 10.7°C (51.3°F).
How hot is Ireland in September?
The hot temperature in September in Ireland rises to 26.1°C (79°F) on sunny days with low cloud coverage and 85.1% humidity. During hottest days of September it feels like 26.1 °C (79°F). The average maximum temp in Ireland is 18.3°C (79°F) during day time in September.
How cold is Ireland in September?
The coldest temp in Ireland in September drops to 4.7°C (40.5°F) during the cold nights. With 25.2km/h (15.7mph) winds and 85.1% humidity it feels like 2.4°C (36.3°F) on the coldest nights. The average minimum temperature is 11.2°C (52.2°F) during night time in September.
Does it rain in Ireland in September?
Yes, it rains for 26 days in Ireland in September averaging 3.33 mm of precipitation. Ireland has a 86.7% chance for rain throughout the entire month of September.
How much does it rain in Ireland throughout September?
Ireland has 3.33 mm (0.13 inch) of rain per day on average in September. It rains for an average of 26 days out of the entire month.
Is Ireland windy in September?
The average speed of wind in Ireland during September is 25.2km/h (15.7mph) and average windgust is 43.7km/h (27.2mph). On some days in September wind can reach up to 52.2km/h (32.4mph).
What is the direction of the wind in Ireland in September?
Most days of September the wind is blowing from South direction in Ireland.
What are the humidity levels in Ireland in September?
The average humidity levels in Ireland in September are 85.1%. Daily humidity levels in Ireland range from 72.3% to 96.1% during September.
How many hours of daylight are in Ireland in September?
Ireland has 12 hours 41 minutes of daylight in September on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Ireland in September is at 6:58:53 and the sunset is at 19:40:19.
What is the cloud coverage in Ireland in September?
Clouds cover 66.6% of the sky on average throughout September in Ireland. The cloud coverage ranges from 19.4% to 94.9% depending on the day of the month.
What is the UV level in September in Ireland?
The average UV index in Ireland is 4.7 in September. UV levels change throughout the month and range from 1 to 9.
What is the solar radiation in Ireland in September?
The average solar radiation is 99.6 W/m2 (Watts per square meter) in Ireland during September. However solar radiation levels change throughout the month and range from 15.9 W/m2 to 199 W/m2.
What is the solar energy during September in Ireland?
The average solar energy during September in Ireland is 8.6 MJ/m2 (megajoules per square metre). Solar energy ranges from 1.3 MJ/m2, to 17.2 MJ/m2 during September.
Are there severe weather risks in Ireland in September?
No, there are no risks for severe weather in Ireland in September.
What is the air pressure in Ireland in September?
On average the air pressure in Ireland in September is 1011.4 mb (millibars). Throughout the month the sea level pressure ranges from 987.6 mb to 1025.7 mb.
What is the visibility in Ireland in September?
The average daylight visibility in Ireland in September is 16.4 km (10.2 miles). Depending on the precipitation the visibility ranges from 6.2 km (3.9 miles) to 24.1 km (15 miles) throughout September.
What is the dew point in Ireland in September?
The average dew point in Ireland during September is 12.1°C (53.8°F).
Where is the data for Ireland climate in September coming from?
The climate data for Ireland in September is collected from the following weather stations.
- CASEMENT, EI
- DUBLIN, EI
- MULLINGAR, EI
- EIDW
- EIME
- FW4142 Dublin IE