August weather forecastGreencastle, Ireland
August
Weather in August
The last month of the summer, August, is another comfortable month in Greencastle, Ireland, with an average temperature fluctuating between 16.3°C (61.3°F) and 10.4°C (50.7°F).Temperature
Greencastle experiences an average high-temperature of a still comfortable 16.3°C (61.3°F) in August, marking an insignificant shift from 16.5°C (61.7°F) in July. Greencastle's average low-temperature during August nights is observed to be a fresh 10.4°C (50.7°F).Humidity
The months with the highest humidity in Greencastle are January, August and December, with an average relative humidity of 88%.Rainfall
The month with the most rainfall is August, when the rain falls for 21.5 days and typically aggregates up to 60mm (2.36") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Greencastle, the average length of the day in August is 14h and 56min.On the first day of August, sunrise is at 5:37 am and sunset at 9:31 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:23 pm IST.
Sunshine
In August, the average sunshine is 5.3h.UV index
In Greencastle, the average daily maximum UV index in August is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 3 during August, leads to the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Greencastle, Ireland
- Average high temperature in August: 16.3°C
The warmest month (with the highest average high temperature) is July (16.5°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in August: 10.4°C
The month with the highest average low temperature is August (10.4°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in August
Greencastle, Ireland
- Average pressure in August: 1011.3mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed in August
Greencastle, Ireland
- Average wind speed in August: 15km/h
The windiest month (with the highest average wind speed) is January (21.9km/h).
The calmest month (with the lowest average wind speed) is July (13.8km/h).
Average humidity in August
Greencastle, Ireland
- Average humidity in August: 88%
The months with the highest relative humidity are January, August and December (88%).
The month with the lowest relative humidity is April (82%).
Average rainfall in August
Greencastle, Ireland
- Average rainfall in August: 60mm
The wettest month (with the highest rainfall) is August (60mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in August
Greencastle, Ireland
- Average rainfall days in August: 21.5 days
The month with the highest number of rainy days is August (21.5 days).
The month with the least rainy days is April (15.7 days).
Average snowfall in August
Greencastle, Ireland
- Average snowfall in August: 0mm
The months with the highest snowfall are January and February (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in August
Greencastle, Ireland
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Greencastle, Ireland
- Average daylight in August: 14h and 54min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in August: 5h and 18min
The month with the most sunshine is June (Average sunshine: 6h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Greencastle, Ireland
- Average sunshine days in August: 6.3 days
The month with the most sunshine days is April (11.1 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in August
Greencastle, Ireland
- Average UV index in August: 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 August
Greencastle, Ireland
- Average cloud cover in August: 67
The month with the most cloud cover is July (Cloud cover 68).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in August
Greencastle, Ireland
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
