August weather forecastJohnstown, Ireland
August
Weather in August
August, the last month of the summer in Johnstown, is another comfortable month, with an average temperature ranging between min 10.3°C (50.5°F) and max 17.1°C (62.8°F).Temperature
Johnstown's weather in August displays an average high-temperature of a still refreshing 17.1°C (62.8°F), showing minor disparity from July's 17.4°C (63.3°F). In August, Johnstown reports a consistent average low-temperature of 10.3°C (50.5°F) during the nights.Humidity
In August, the average relative humidity in Johnstown, Ireland, is 89%.Rainfall
August is the month with the most rainfall in Johnstown. Rain falls for 13.8 days and accumulates 26mm (1.02") of precipitation.Snowfall
In Johnstown, snow does not fall in May through October.Daylight
In Johnstown, the average length of the day in August is 14h and 43min.On the first day of the month, sunrise is at 5:44 am and sunset at 9:21 pm. On the last day of August, in Johnstown, sunrise is at 6:35 am and sunset at 8:17 pm IST.
Sunshine
In Johnstown, the average sunshine in August is 5.4h.UV index
May, June and August, with an average maximum UV index of 4, are months with the highest UV index in Johnstown. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 4 in August translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Johnstown, Ireland
- Average high temperature in August: 17.1°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (6.6°C).
- Average low temperature in August: 10.3°C
The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in August
Johnstown, Ireland
- Average pressure in August: 1012.9mbar
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 August
Johnstown, Ireland
- Average wind speed in August: 14.1km/h
The windiest month (with the highest average wind speed) is January (19.7km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in August
Johnstown, Ireland
- Average humidity in August: 89%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and May (86%).
Average rainfall in August
Johnstown, Ireland
- Average rainfall in August: 26mm
The wettest month (with the highest rainfall) is August (26mm).
The driest months (with the least rainfall) are January and October (13mm).
Average rainfall days in August
Johnstown, Ireland
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (9.8 days).
Average snowfall in August
Johnstown, Ireland
- Average snowfall in August: 0mm
The months with the highest snowfall are January and February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Johnstown, 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 May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Johnstown, Ireland
- Average daylight in August: 14h and 42min
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 August: 5h and 24min
The month with the most sunshine is April (Average sunshine: 6h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in August
Johnstown, Ireland
- Average sunshine days in August: 8.1 days
The month with the most sunshine days is December (15.8 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in August
Johnstown, Ireland
- Average UV index in August: 4
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 August
Johnstown, Ireland
- Average cloud cover in August: 68
The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in August
Johnstown, Ireland
- Average visibility in August: 8km
The months with the highest visibility are January, February, March and December (9km).
The month with the lowest visibility is July (7km).
