This report describes the typical weather at the Kobe Airport (Kobe, Japan) weather station over the course of an average April. It is based on the historical records from 2007 to 2012. Earlier records are either unavailable or unreliable.
Kobe has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (35%), croplands (25%), forests (16%), built-up areas (13%), and grasslands (6%).
The month of April is characterized by rapidly rising daily high temperatures, with daily highs increasing from 57°F to 66°F over the course of the month, exceeding 70°F or dropping below 53°F only one day in ten.
Over the course of April, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 59 minutes, implying an average day-over-day increase of 2.0 minutes.
The shortest day of the month is April 1 with 12:34 hours of daylight; the longest day is April 30 with 13:33 hours of daylight.
The earliest sunrise is at 5:10am on April 30; the latest sunset is at 6:43pm on April 29; the latest sunrise is at 5:46am on April 1; the earliest sunset is at 6:20pm on April 1.
Daylight savings time (DST) is not observed in 2012.
The median cloud cover is 63% (partly cloudy) and does not vary substantially over the course of the month.
On April 15, a representative day, the sky is clear or mostly clear 17% of the time, partly cloudy 6% of the time, and mostly cloudy or overcast 23% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around April 1, occurring in 40% of days. Precipitation is least likely around April 26, occurring in 36% of days.
Throughout April, the most common forms of precipitation are light rain and moderate rain.
Light rain is the most severe precipitation observed during 70% of those days with precipitation. It is most likely around April 3, when it is observed during 28% of all days.
Moderate rain is the most severe precipitation observed during 24% of those days with precipitation. It is most likely around April 29, when it is observed during 10% of all days.
Either snow is exceptionally unlikely to fall at this location in April or this station does not reliably report precipitation types.
The relative humidity typically ranges from 47% (comfortable) to 86% (very humid) over the course of a typical April, rarely dropping below 37% (comfortable) and reaching as high as 100% (very humid).
The air is driest around April 4, at which time the relative humidity drops below 52% (mildly humid) three days out of four; it is most humid around April 14, rising above 77% (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 April, the dew point typically varies from 34°F (dry) to 55°F (very comfortable) and is rarely below 26°F (dry) or above 59°F (comfortable).
Over the course of April typical wind speeds vary from 3 mph to 17 mph (light air to moderate breeze), rarely exceeding 23 mph (fresh breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around April 22, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around April 6, at which time the average daily maximum wind speed is 15 mph (moderate breeze).