It has huge storms with extremely high winds. Its atmosphere has dark spots which come and go, and bright cirrus-like clouds which change rapidly. Neptune has an average temperature of -353 Fahrenheit (-214 Celsius).
According to scientists, the surface of Neptune is one of the coldest places in the Solar System. At its surface, where the clouds of the planet touch space, the temperature of Neptune can dip down to 55 Kelvin. That’s -218 degrees Celsius. Neptune and its Great Dark Spot. Image credit: NASA/JPL. The average temperature of Neptune is 73 K (-200 Celsius). But one strange anomaly is the planet’s south pole, which is 10 degrees warmer than the rest of planet. This “hot spot” occurs because Neptune’s south pole is currently exposed to the Sun.  However, the distance to Neptune from the sun is enormous--on average, the planet is 2.8 billion miles (4.5 billion kilometers) from the heat-giving star. As a result, the pole tipped toward the sun reaches higher temperatures than the rest of the planet for a quarter of a Neptunian year, or for about 40 Earth-years. Unlike the terrestrial planets, Neptune and the other gas giants still hold much of the atmosphere they had at their formation. Temperature and pressure shift at different heights. The average temperature at the top of the cloud tops is minus 346 degrees Fahrenheit (minus 210 degrees Celsius). Neptune is the most distant planet from the Sun, with temperatures that plunge down to 55 Kelvin, or -218 degrees Celsius. You would think that a planet that cold would be frozen and locked down, with very little weather. But you’d be very wrong. Just like Jupiter and Saturn, Neptune has bands of storms that circle the planet. While the wind speeds on Jupiter can reach 550 km/hour – twice the speed of powerful hurricanes on Earth, that’s nothing compared to Neptune. Astronomers have clocked winds on Neptune traveling at 2,100 km/hour. The temperature at this surface is approximately minus 346 F (minus 201 C). The planet's average temperature is minus 353 F (minus 214 C). But despite being the most distant planet, it is not the coldest. That honor goes to the seventh planet, Uranus, which is closer to the sun. Unlike the terrestrial planets, Neptune and the other gas giants still hold much of the atmosphere they had at their formation. Temperature and pressure shift at different heights. The average temperature at the top of the cloud tops is minus 346 degrees Fahrenheit (minus 210 degrees Celsius). Temperatures. As it's 2.8 billion miles from the sun, about 30 times as far as Earth, Neptune gets little sunlight. The average surface temperature is about --200 degrees Celsius. However, it has an internal source of heat, thought to be from radioactive minerals deep in the planet. At Neptune's core, the temperature goes to 7,000 degrees Celsius. A gas giant and the furthest major planet from the sun, Neptune has been found to have very active weather patterns. Its distance from the sun means the atmospheric temperatures can be some of the lowest in the solar system, down to --218 degrees Celsius. It has been recently found that wind speeds on Uranus range from 90 to 360 mph and the planet's average temperature is a frigid -353 degrees F. The coldest temperature found in Uranus' lower atmosphere so far is -371 degrees F., which rivals Neptune's frigid temperatures. Findings from Hubble reveal that clouds circle Uranus at over 300 mph. Uranus is the third gas giant planet of four in proximity to the Sun. Overall, Uranus is the seventh planet in our solar system, residing at an average distance of 1.8 billion miles from the Sun (twice as far as Saturn). Neptune has the wildest and strangest weather in the entire Solar System. It has huge storms with extremely high winds. Its atmosphere has dark spots which come and go, and bright cirrus-like clouds which change rapidly. Neptune has an average temperature of -353 Fahrenheit (-214 Celsius). On Earth sunlight drives our weather, but Neptune is so far away that it receives a thousand times less sunlight than Earth does. How Neptune gets the energy for such intense weather is still a mystery. 1  Javascript must be enabled to use Cool Cosmos. At this point, the temperature of Neptune can reach as low as 55° Kelvin (or 50° above absolute zero) although the mean temperature of the planet is 73° K (-200° Celsius). However, temperatures at the South Pole are -10° C warmer than the rest of the planet because it is currently titled towards the Sun. Temperature On Neptune. Now that Pluto has been demoted from a planet to a dwarf planet, Neptune is now the most distant planet in the solar system. It is 2.8 million miles from the Sun or 30 times the distance of the Earth to the Sun.
http://www.universetoday.com/21669/temperature-of-neptune/ http://www.space.com/18921-neptune-temperature.html http://www.universetoday.com/22067/weather-on-neptune/ http://www.space.com/18921-neptune-temperature.html http://www.ehow.com/about_5127481_climate-neptune.html http://www.weather.gov/fsd/uranus http://coolcosmos.ipac.caltech.edu/ask/150-What-is-the-weather-like-on-Neptune http://planetfacts.org/temperature-on-neptune/
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