This report describes the typical weather at the Port Elizabeth Airport (Port Elizabeth, South Africa) weather station over the course of an average year. It is based on the historical records from 1994 to 2012. Earlier records are either unavailable or unreliable.
Port Elizabeth has a mild humid temperate climate with warm summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (63%), grasslands (19%), croplands (8%), forests (7%), and built-up areas (4%).
Over the course of a year, the temperature typically varies from 46°F to 78°F and is rarely below 40°F or above 83°F.
The warm season lasts from December 27 to March 18 with an average daily high temperature above 76°F. The hottest day of the year is January 31, with an average high of 78°F and low of 64°F.
The cold season lasts from May 28 to October 7 with an average daily high temperature below 69°F. The coldest day of the year is July 8, with an average low of 46°F and high of 67°F.
The length of the day varies significantly over the course of the year. The shortest day is June 20 with 9:54 hours of daylight; the longest day is December 21 with 14:25 hours of daylight.
The earliest sunrise is at 4:59am on December 7 and the latest sunset is at 7:33pm on January 8. The latest sunrise is at 7:24am on June 28 and the earliest sunset is at 5:15pm on June 13.
Daylight saving time (DST) is not observed in 2012.
The median cloud cover ranges from 29% (mostly clear) to 63% (partly cloudy). The sky is cloudiest on January 31 and clearest on July 2. The clearer part of the year begins around April 25. The cloudier part of the year begins around September 7.
On July 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 58% of the time, and overcast or mostly cloudy 18% of the time.
On January 31, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 54% of the time, and clear or mostly clear 36% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around December 12, occurring in 47% of days. Precipitation is least likely around May 25, occurring in 29% of days.
Over the entire year, the most common forms of precipitation are moderate rain, light rain, and thunderstorms.
Moderate rain is the most severe precipitation observed during 45% of those days with precipitation. It is most likely around November 22, when it is observed during 20% of all days.
Light rain is the most severe precipitation observed during 34% of those days with precipitation. It is most likely around November 5, when it is observed during 16% of all days.
Thunderstorms are the most severe precipitation observed during 11% of those days with precipitation. They are most likely around March 24, when it is observed during 7% of all days.
During the warm season, which lasts from December 27 to March 18, there is a 43% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of moderate rain (39% of days with precipitation have at worst moderate rain), light rain (31%), thunderstorms (14%), and drizzle (13%).
During the cold season, which lasts from May 28 to October 7, there is a 34% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of moderate rain (51% of days with precipitation have at worst moderate rain), light rain (36%), thunderstorms (6%), and drizzle (5%).
Either snow is exceptionally unlikely to fall at any time during the year at this location or this station does not reliably report precipitation types.
The relative humidity typically ranges from 43% (comfortable) to 96% (very humid) over the course of the year, rarely dropping below 20% (dry) and reaching as high as 100% (very humid).
The air is driest around July 9, at which time the relative humidity drops below 57% (mildly humid) three days out of four; it is most humid around March 25, exceeding 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 year, the dew point typically varies from 38°F (dry) to 66°F (muggy) and is rarely below 29°F (dry) or above 71°F (muggy).
The time of the year between March 8 and December 31 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of the year typical wind speeds vary from 1 mph to 23 mph (light air to fresh breeze), rarely exceeding 33 mph (high wind).
The highest average wind speed of 14 mph (moderate breeze) occurs around October 30, at which time the average daily maximum wind speed is 23 mph (fresh breeze).
The lowest average wind speed of 10 mph (gentle breeze) occurs around July 12, at which time the average daily maximum wind speed is 17 mph (moderate breeze).