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
Kilmessan sees the arrival of September with an average high-temperature of a mild 15.7°C (60.3°F), indicating a subtle variation from August. During September, Kilmessan witnesses a consistent average low-temperature of 9°C (48.2°F).Humidity
In Kilmessan, Ireland, the average relative humidity in September is 89%.Rainfall
In Kilmessan, in September, during 13.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Kilmessan, during the entire year, the rain falls for 171.5 days and collects up to 274mm (10.79") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Kilmessan, the average length of the day in September is 12h and 41min.On the first day of September in Kilmessan, sunrise is at 6:36 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:05 pm IST.
Sunshine
The average sunshine in September in Kilmessan, Ireland, is 5.8h.UV index
In Kilmessan, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Kilmessan?
What is the average humidity in September in Kilmessan?
How much does it rain in Kilmessan in September?
When it does not snow in Kilmessan?
How many hours of daylight does Kilmessan have in September?
When is the sunrise / sunset in September in Kilmessan?
How many hours of sunshine does Kilmessan have in September?
What is the UV index reading in September in Kilmessan?
Average temperature in September
Kilmessan, Ireland
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is July (17.7°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Kilmessan, Ireland
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008.2mbar).
Average wind speed in September
Kilmessan, Ireland
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is January (20.3km/h).
The calmest months (with the lowest average wind speed) are June and July (13.3km/h).
Average humidity in September
Kilmessan, Ireland
- Average humidity in September: 89%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are March and April (85%).
Average rainfall in September
Kilmessan, Ireland
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are January, April and October (16mm).
Average rainfall days in September
Kilmessan, Ireland
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Kilmessan, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (15mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Kilmessan, 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, October and November (0 days).
Average daylight in September /
Average sunshine in September
Kilmessan, Ireland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is April (Average sunshine: 6h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Kilmessan, Ireland
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Kilmessan, Ireland
- Average UV index in September: 3
The months with the highest UV index are May, 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
Kilmessan, Ireland
- Average cloud cover in September: 60
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in September
Kilmessan, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).
