Average Weather in Soanierana Ivongo Madagascar

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In Soanierana Ivongo, the wet season is oppressive and partly cloudy, the dry season is muggy and mostly clear, and it is warm year round. Over the course of the year, the temperature typically varies from 69°F to 84°F and is rarely below 67°F or above 87°F.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

In Soanierana Ivongo, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Soanierana Ivongo begins around April 11 and lasts for 7.4 months, ending around November 22. On September 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 89% of the time, and overcast or mostly cloudy 11% of the time.

The cloudier part of the year begins around November 22 and lasts for 4.6 months, ending around April 11. On January 17, the cloudiest day of the year, the sky is overcast or mostly cloudy 80% of the time, and clear, mostly clear, or partly cloudy 20% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Soanierana Ivongo varies very significantly throughout the year.

The wetter season lasts 5.0 months, from December 6 to May 7, with a greater than 46% chance of a given day being a wet day. The chance of a wet day peaks at 78% on February 16.

The drier season lasts 7.0 months, from May 7 to December 6. The smallest chance of a wet day is 15% on October 2.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 78% on February 16.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Soanierana Ivongo experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Soanierana Ivongo. The most rain falls during the 31 days centered around February 14, with an average total accumulation of 12.2 inches.

The least rain falls around September 23, with an average total accumulation of 1.1 inches.

The length of the day in Soanierana Ivongo varies over the course of the year. In 2017, the shortest day is June 21, with 11 hours, 7 minutes of daylight; the longest day is December 21, with 13 hours, 9 minutes of daylight.

The earliest sunrise is at 4:58 AM on November 24, and the latest sunrise is 1 hour, 13 minutes later at 6:11 AM on July 7. The earliest sunset is at 5:14 PM on June 2, and the latest sunset is 1 hour, 7 minutes later at 6:21 PM on January 19.

Daylight saving time (DST) is not observed in Soanierana Ivongo during 2017.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Soanierana Ivongo experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.4 months, from September 22 to July 4, during which time the comfort level is muggy, oppressive, or miserable at least 46% of the time. The muggiest day of the year is February 17, with muggy conditions 100% of the time.

The least muggy day of the year is August 21, with muggy conditions 27% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Soanierana Ivongo experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.4 months, from May 17 to September 30, with average wind speeds of more than 3.6 miles per hour. The windiest day of the year is July 24, with an average hourly wind speed of 4.2 miles per hour.

The calmer time of year lasts for 7.6 months, from September 30 to May 17. The calmest day of the year is January 20, with an average hourly wind speed of 3.0 miles per hour.

The predominant average hourly wind direction in Soanierana Ivongo varies throughout the year.

The wind is most often from the south for 1.4 weeks, from April 15 to April 25 and for 2.9 months, from May 1 to July 30, with a peak percentage of 58% on July 10. The wind is most often from the east for 6.0 days, from April 25 to May 1 and for 8.5 months, from July 30 to April 15, with a peak percentage of 47% on April 28.

Soanierana Ivongo is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 4.3 months, from December 16 to April 24, with an average temperature above 82°F. The day of the year with the warmest water is February 15, with an average temperature of 83°F.

The time of year with cooler water lasts for 3.2 months, from July 1 to October 6, with an average temperature below 77°F. The day of the year with the coolest water is August 13, with an average temperature of 75°F.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.5 months, from September 30 to December 15, with an average daily incident shortwave energy per square meter above 6.5 kWh. The brightest day of the year is November 2, with an average of 7.2 kWh.

The darker period of the year lasts for 2.7 months, from May 17 to August 8, with an average daily incident shortwave energy per square meter below 4.8 kWh. The darkest day of the year is June 26, with an average of 4.2 kWh.

For the purposes of this report, the geographical coordinates of Soanierana Ivongo are -16.917 deg latitude, 49.583 deg longitude, and 23 ft elevation.

The topography within 2 miles of Soanierana Ivongo contains only modest variations in elevation, with a maximum elevation change of 331 feet and an average elevation above sea level of 33 feet. Within 10 miles contains only modest variations in elevation (1,453 feet). Within 50 miles contains very significant variations in elevation (3,970 feet).

The area within 2 miles of Soanierana Ivongo is covered by water (36%), trees (29%), grassland (13%), and shrubs (12%), within 10 miles by water (40%) and trees (25%), and within 50 miles by water (46%) and trees (31%).

This report illustrates the typical weather in Soanierana Ivongo, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Soanierana Ivongo is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Soanierana Ivongo, according to the International Standard Atmosphere .

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.