This report describes the typical weather at the Santorini (Thira) National Airport (Santorini (Thira), Greece) weather station over the course of an average May. It is based on the historical records from 1996 to 2012. Earlier records are either unavailable or unreliable.
Santorini (Thira) has a hot desert climate. The area within 25 mi of this station is covered by oceans and seas (96%) and croplands (2%).
The month of May is characterized by rising daily high temperatures, with daily highs increasing from 69°F to 77°F over the course of the month, exceeding 82°F or dropping below 64°F only one day in ten.
Over the course of May, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 47 minutes, implying an average day-over-day increase of 1.5 minutes.
The shortest day of the month is May 1 with 13:42 hours of daylight; the longest day is May 31 with 14:28 hours of daylight.
The earliest sunrise is at 6:02am on May 31; the latest sunset is at 8:30pm on May 31; the latest sunrise is at 6:25am on May 1; the earliest sunset is at 8:06pm on May 1.
Daylight saving time is observed in 2012 but it neither starts nor ends in May, so the entire month is in daylight time.
The median cloud cover ranges from 43% (partly cloudy) to 52% (partly cloudy). The trend is for the sky to be clearing with the median cloud cover decreasing by 8% from the start to the end of the month.
On May 16, a representative day, the sky is clear or mostly clear 17% of the time, partly cloudy 15% of the time, and mostly cloudy or overcast 13% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around May 1, occurring in 16% of days. Precipitation is least likely around May 31, occurring in 8% of days.
Throughout May, the most common forms of precipitation are light rain, thunderstorms, and moderate rain.
Light rain is the most severe precipitation observed during 45% of those days with precipitation. It is most likely around May 1, when it is observed during 7% of all days.
Thunderstorms are the most severe precipitation observed during 31% of those days with precipitation. They are most likely around May 1, when it is observed during 5% of all days.
Moderate rain is the most severe precipitation observed during 17% of those days with precipitation. It is most likely around May 1, when it is observed during 4% of all days.
Either snow is exceptionally unlikely to fall at this location in May or this station does not reliably report precipitation types.
The relative humidity typically ranges from 50% (comfortable) to 85% (humid) over the course of a typical May, rarely dropping below 36% (comfortable) and reaching as high as 97% (very humid).
The air is driest around May 31, at which time the relative humidity drops below 57% (mildly humid) three days out of four; it is most humid around May 15, rising above 79% (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 May, the dew point typically varies from 48°F (dry) to 62°F (mildy humid) and is rarely below 42°F (dry) or above 66°F (muggy).
The time of the month between May 1 and May 31 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of May typical wind speeds vary from 1 mph to 18 mph (light air to fresh breeze), rarely exceeding 27 mph (strong breeze).
The highest average wind speed of 11 mph (gentle breeze) occurs around May 1, at which time the average daily maximum wind speed is 18 mph (fresh breeze).
The lowest average wind speed of 10 mph (gentle breeze) occurs around May 19, at which time the average daily maximum wind speed is 16 mph (moderate breeze).