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
Weather in September
Temperature
Graiganster's average high-temperature in September is a still refreshing 15.8°C (60.4°F), indicating a subtle variation from August. Throughout September in Graiganster, Ireland, a steady low-temperature average of 8.5°C (47.3°F) is noted.Humidity
In September, the average relative humidity is 89%.Rainfall
September is the month with the least rainfall. Rain falls for 17.1 days and accumulates 39mm (1.54") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day in Graiganster is 12h and 40min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:21 pm. On the last day of September, in Graiganster, sunrise is at 7:34 am and sunset at 7:13 pm IST.
Sunshine
In Graiganster, the average sunshine in September is 5.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Take precautions - Protection against sun damage is advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What are the temperatures in Graiganster in September?
What is the average humidity in September in Graiganster?
What is the driest month in Graiganster?
How many days does it rain in September in Graiganster?
When it does not snow in Graiganster?
What is the average length of the day in September in Graiganster?
What time are sunrise and sunset in September in Graiganster?
How long on average sun shines in September in Graiganster?
How high is the UV index in September in Graiganster?
Average temperature in September
Graiganster, 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
Graiganster, 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
Graiganster, 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
Graiganster, 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
Graiganster, 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
Graiganster, 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
Graiganster, 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
Graiganster, 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
Graiganster, Ireland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 5h and 3min
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
Graiganster, 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
Graiganster, 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
Graiganster, 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
Graiganster, 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).
Graiganster, Ireland
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