Average Weather in Betioky Madagascar

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In Betioky, the wet season is muggy and partly cloudy, the dry season is windy and clear, and it is hot year round. Over the course of the year, the temperature typically varies from 56°F to 96°F and is rarely below 52°F or above 103°F.

The hot season lasts for 3.2 months, from September 25 to January 1, with an average daily high temperature above 93°F. The hottest day of the year is November 11, with an average high of 96°F and low of 69°F.

The cool season lasts for 2.4 months, from May 24 to August 6, with an average daily high temperature below 84°F. The coldest day of the year is July 8, with an average low of 56°F and high of 81°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 Betioky, 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 Betioky begins around April 2 and lasts for 7.4 months, ending around November 13. On June 25, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 96% of the time, and overcast or mostly cloudy 4% of the time.

The cloudier part of the year begins around November 13 and lasts for 4.6 months, ending around April 2. On January 14, the cloudiest day of the year, the sky is overcast or mostly cloudy 60% of the time, and clear, mostly clear, or partly cloudy 40% 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 Betioky varies very significantly throughout the year.

The wetter season lasts 3.9 months, from November 21 to March 18, with a greater than 31% chance of a given day being a wet day. The chance of a wet day peaks at 58% on January 27.

The drier season lasts 8.1 months, from March 18 to November 21. The smallest chance of a wet day is 4% on July 28.

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 58% on January 27.

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. Betioky experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.1 months, from September 17 to May 20, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around January 23, with an average total accumulation of 6.4 inches.

The rainless period of the year lasts for 3.9 months, from May 20 to September 17. The least rain falls around August 5, with an average total accumulation of 0.3 inches.

The length of the day in Betioky varies over the course of the year. In 2017, the shortest day is June 21, with 10 hours, 40 minutes of daylight; the longest day is December 21, with 13 hours, 36 minutes of daylight.

The earliest sunrise is at 5:06 AM on November 29, and the latest sunrise is 1 hour, 39 minutes later at 6:45 AM on July 4. The earliest sunset is at 5:22 PM on June 8, and the latest sunset is 1 hour, 32 minutes later at 6:54 PM on January 13.

Daylight saving time (DST) is not observed in Betioky 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.

Betioky experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.6 months, from November 12 to April 29, during which time the comfort level is muggy, oppressive, or miserable at least 22% of the time. The muggiest day of the year is February 7, with muggy conditions 87% of the time.

The least muggy day of the year is July 20, when muggy conditions are essentially unheard of.

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 Betioky experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.5 months, from July 15 to November 30, with average wind speeds of more than 5.1 miles per hour. The windiest day of the year is September 28, with an average hourly wind speed of 5.8 miles per hour.

The calmer time of year lasts for 7.5 months, from November 30 to July 15. The calmest day of the year is March 9, with an average hourly wind speed of 4.4 miles per hour.

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

The wind is most often from the south for 2.2 months, from October 13 to December 18, with a peak percentage of 33% on October 27. The wind is most often from the east for 9.8 months, from December 18 to October 13, with a peak percentage of 34% on January 1.

Betioky 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 3.3 months, from December 26 to April 5, with an average temperature above 82°F. The day of the year with the warmest water is February 15, with an average temperature of 84°F.

The time of year with cooler water lasts for 3.9 months, from June 14 to October 10, with an average temperature below 77°F. The day of the year with the coolest water is August 7, 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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.3 months, from September 27 to January 6, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is November 14, with an average of 7.5 kWh.

The darker period of the year lasts for 2.9 months, from May 5 to August 3, with an average daily incident shortwave energy per square meter below 5.0 kWh. The darkest day of the year is June 24, with an average of 4.3 kWh.

For the purposes of this report, the geographical coordinates of Betioky are -23.721 deg latitude, 44.381 deg longitude, and 837 ft elevation.

The topography within 2 miles of Betioky contains only modest variations in elevation, with a maximum elevation change of 302 feet and an average elevation above sea level of 816 feet. Within 10 miles contains only modest variations in elevation (991 feet). Within 50 miles contains very significant variations in elevation (2,887 feet).

The area within 2 miles of Betioky is covered by grassland (99%), within 10 miles by grassland (84%), and within 50 miles by grassland (82%).

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

Betioky 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 Betioky, 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.