Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Stepaside, Ireland, measures an average high-temperature of a still refreshing 15.2°C (59.4°F) in September, nearly consistent with the preceding month. In Stepaside, the nighttime temperature in September descends gently to an average of 11.3°C (52.3°F).Humidity
In September, the average relative humidity is 85%.Rainfall
In Stepaside, during September, the rain falls for 14.9 days and regularly aggregates up to 36mm (1.42") of precipitation. In Stepaside, during the entire year, the rain falls for 200.5 days and collects up to 530mm (20.87") of precipitation.Snowfall
April through October are months without snowfall in Stepaside.Daylight
In Stepaside, the average length of the day in September is 12h and 40min.On the first day of September, sunrise is at 6:35 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:03 pm IST.
Sunshine
In Stepaside, the average sunshine in September is 7.3h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Stepaside, Ireland. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Stepaside in September?
What is the average humidity in September in Stepaside?
How many days does it rain in September in Stepaside?
When it does not snow in Stepaside?
What is the average length of the day in September in Stepaside?
When are sunrise and sunset in September in Stepaside?
How many hours of sunshine does Stepaside have in September?
When is the highest UV index in Stepaside?
What is the UV index intensity in September in Stepaside?
Average temperature in September
Stepaside, Ireland
- Average high temperature in September: 15.2°C
The warmest months (with the highest average high temperature) are July and August (16.9°C).
The months with the lowest average high temperature are January and February (7.8°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).
Average pressure in September
Stepaside, Ireland
- Average pressure in September: 1015.4mbar
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
Stepaside, Ireland
- Average wind speed in September: 19.1km/h
The windiest month (with the highest average wind speed) is December (25.9km/h).
The calmest month (with the lowest average wind speed) is July (15.9km/h).
Average humidity in September
Stepaside, Ireland
- Average humidity in September: 85%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (82%).
Average rainfall in September
Stepaside, Ireland
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in September
Stepaside, Ireland
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (20.4 days).
The months with the least rainy days are March and September (14.9 days).
Average snowfall in September
Stepaside, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Stepaside, Ireland
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Stepaside, 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: 7h and 2min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 4h and 18min).
Average sunshine days in September
Stepaside, Ireland
- Average sunshine days in September: 11 days
The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in September
Stepaside, Ireland
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Stepaside, Ireland
- Average cloud cover in September: 48
The months with the most cloud cover are February and November (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in September
Stepaside, Ireland
- Average visibility in September: 9km
The months with the highest visibility are January, March, October and November (10km).
The months with the lowest visibility are February, April, May, June, July, August, September and December (9km).
