This report describes the typical weather at the Mykonos Island National Airport (Mykonos (Mikonos), Greece) weather station over the course of an average September. It is based on the historical records from 1998 to 2012. Earlier records are either unavailable or unreliable.
Mykonos (Mikonos) has a mediterranean climate with dry hot summers and mild winters. The area within 25 mi of this station is covered by oceans and seas (90%), croplands (8%), and shrublands (3%).
The month of September is characterized by falling daily high temperatures, with daily highs decreasing from 80°F to 75°F over the course of the month, exceeding 85°F or dropping below 70°F only one day in ten.
Over the course of September, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:09 hours, implying an average day-over-day decrease of 2.3 minutes.
The shortest day of the month is September 30 with 11:49 hours of daylight; the longest day is September 1 with 12:58 hours of daylight.
The earliest sunrise is at 6:49am on September 1; the latest sunset is at 7:47pm on September 1; the latest sunrise is at 7:13am on September 30; the earliest sunset is at 7:03pm on September 30.
Daylight savings time is observed in 2012 but it neither starts nor ends in September, so the entire month is in daylight time.
The median cloud cover ranges from 31% (mostly clear) to 40% (mostly clear). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 9% from the start to the end of the month.
On September 15, a representative day, the sky is clear or mostly clear 25% of the time, partly cloudy 10% of the time, and mostly cloudy or overcast 7% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around September 30, occurring in 11% of days. Precipitation is least likely around September 1, occurring in 5% of days.
Throughout September, the most common forms of precipitation are thunderstorms and light rain.
Thunderstorms are the most severe precipitation observed during 55% of those days with precipitation. They are most likely around September 30, when it is observed during 6% of all days.
Light rain is the most severe precipitation observed during 34% of those days with precipitation. It is most likely around September 30, when it is observed during 3% of all days.
Either snow is exceptionally unlikely to fall at this location in September or this station does not reliably report precipitation types.
The relative humidity typically ranges from 52% (mildly humid) to 87% (very humid) over the course of a typical September, rarely dropping below 38% (comfortable) and reaching as high as 99% (very humid).
The air is driest around September 1, at which time the relative humidity drops below 60% (mildly humid) three days out of four; it is most humid around September 28, rising above 81% (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 September, the dew point typically varies from 57°F (comfortable) to 66°F (muggy) and is rarely below 49°F (dry) or above 71°F (very muggy).
The time of the month between September 9 and September 30 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of September typical wind speeds vary from 7 mph to 24 mph (light breeze to fresh breeze), rarely exceeding 31 mph (high wind).
The highest average wind speed of 17 mph (moderate breeze) occurs around September 1, at which time the average daily maximum wind speed is 24 mph (fresh breeze).
The lowest average wind speed of 14 mph (moderate breeze) occurs around September 27, at which time the average daily maximum wind speed is 19 mph (fresh breeze).