what months are summer in the southern hemisphere
Summer From an astronomical view, the equinoxes and solstices would be the middle of the respective seasons,[1][2] but sometimes astronomical summer is defined as starting at the solstice, the time of maximal insolation, or on the traditional date of June 21. A variable seasonal lag means that the meteorological center of the season, which is based on average temperature patterns, occurs several weeks after the time of maximal insolation.[3] The meteorological convention is to define summer as comprising the months of June, July, and August in the northern hemisphere and the months of December, January, and February in the southern hemisphere.[4][5] Under meteorological definitions, all seasons are arbitrarily set to start at the beginning of a calendar month and end at the end of a month.[4] This meteorological definition of summer also aligns with the commonly viewed notion of summer as the season with the longest (and warmest) days of the year, in which daylight predominates. The meteorological reckoning of seasons is used in Australia, Austria, Denmark, the former Soviet Union and Japan. It is also used by many in the United Kingdom. In Ireland, the summer months according to the national meteorological service, Met Éireann, are June, July and August. However, according to the Irish Calendar, summer begins on 1 May and ends on 1 August. School textbooks in Ireland follow the cultural norm of summer commencing on 1 May rather than the meteorological definition of 1 June.
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Christmas in July In the Southern Hemisphere, seasons are in reverse to the Northern Hemisphere, with summer falling in December, January, and February, and with winter falling in June, July, and August. Therefore, in some southern hemisphere countries, such as Comoros, Madagascar, Bolivia, Angola, French Polynesia, Papua New Guinea, Paraguay, Samoa and South Africa, Christmas in July or Midwinter Christmas events are undertaken in order to have Christmas with a winter feel in common with the northern hemisphere.[14][15][16] These countries still celebrate Christmas on December 25, in their summer, like the northern hemisphere.
Daytime Given that Earth's own axis of rotation is tilted about 23.5Â° to the line perpendicular to its orbital plane, called the ecliptic, the length of daytime varies with the seasons on the planet's surface, depending on the observer's latitude. Areas tilted toward the Sun are experiencing summer. Their tilt toward the Sun leads to more than half of the day seeing daylight and warmer temperatures, due to the higher directness of solar rays, the longer period of daytime itself, and less absorption of sunlight in the atmosphere. While increased daylight can have some effect on the higher temperatures in the summer, most of temperature rise results from the directness of the Sun, not the increased daylight. The high angles (around the zenith) of the Sun causes the tropics to be warm, while low angles (barely above the horizon) causes the polar regions to be cold. The slight effect of daylight hours on average seasonal temperature can be seen with the poles and tropical regions. The poles are still cold during their respective summers, despite seeing 24 hours of daylight for six months, while the Equator remains warm throughout the year, with only 12 hours of daylight per day.