This report describes the typical weather at the Dublin International Airport (Dublin, Ireland) weather station over the course of an average June. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Dublin has a mild humid temperate climate with warm summers and no dry season. The area within 25 mi of this station is covered by grasslands (53%), oceans and seas (39%), built-up areas (4%), and croplands (3%).
The month of June is characterized by gradually rising daily high temperatures, with daily highs increasing from 60°F to 64°F over the course of the month, exceeding 70°F or dropping below 55°F only one day in ten.
Over the course of June, the length of the day is essentially constant. The shortest day of the month is June 1 with 16:41 hours of daylight; the longest day is June 24 with 17:01 hours of daylight.
The earliest sunrise is at 4:55am on June 17; the latest sunset is at 9:58pm on June 24; the latest sunrise is at 5:02am on June 2; the earliest sunset is at 9:44pm on June 1.
Daylight savings time is observed in 2012 but it neither starts nor ends in June, so the entire month is in daylight time.
The median cloud cover is 88% (mostly cloudy) and does not vary substantially over the course of the month.
On June 15, a representative day, the sky is clear or mostly clear 18% of the time, partly cloudy 19% of the time, and mostly cloudy or overcast 61% of the time.
The average probability that some form of precipitation will be observed in a given day is 70%, with little variation over the course of the month.
Throughout June, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 74% of those days with precipitation. It is most likely around June 30, when it is observed during 53% of all days.
Light rain is the most severe precipitation observed during 14% of those days with precipitation. It is most likely around June 1, when it is observed during 11% of all days.
Either snow is exceptionally unlikely to fall at this location in June or this station does not reliably report precipitation types.
The relative humidity typically ranges from 61% (mildly humid) to 95% (very humid) over the course of a typical June, rarely dropping below 47% (comfortable) and reaching as high as 100% (very humid).
The air is driest around June 1, at which time the relative humidity drops below 68% (mildly humid) three days out of four; it is most humid around June 3, rising above 93% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical June, the dew point typically varies from 43°F (dry) to 55°F (very comfortable) and is rarely below 37°F (dry) or above 60°F (comfortable).
The time of the month between June 1 and June 30 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of June typical wind speeds vary from 3 mph to 16 mph (light air to moderate breeze), rarely exceeding 23 mph (fresh breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around June 1, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 10 mph (gentle breeze) occurs around June 8, at which time the average daily maximum wind speed is 15 mph (moderate breeze).