Average Weather in Toliara Madagascar

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In Toliara, the wet season is oppressive 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 64°F to 91°F and is rarely below 61°F or above 96°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 Toliara, 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 Toliara begins around March 31 and lasts for 7.5 months, ending around November 16. On June 25, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 97% of the time, and overcast or mostly cloudy 3% of the time.

The cloudier part of the year begins around November 16 and lasts for 4.5 months, ending around March 31. On January 17, the cloudiest day of the year, the sky is overcast or mostly cloudy 59% of the time, and clear, mostly clear, or partly cloudy 41% 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 Toliara varies significantly throughout the year.

The wetter season lasts 3.5 months, from November 27 to March 12, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 48% on January 28.

The drier season lasts 8.5 months, from March 12 to November 27. The smallest chance of a wet day is 2% on July 27.

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 48% on January 28.

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. Toliara experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.2 months, from October 13 to April 20, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around January 24, with an average total accumulation of 5.1 inches.

The rainless period of the year lasts for 5.8 months, from April 20 to October 13. The least rain falls around July 27, with an average total accumulation of 0.1 inches.

The length of the day in Toliara varies over the course of the year. In 2017, the shortest day is June 21, with 10 hours, 42 minutes of daylight; the longest day is December 21, with 13 hours, 35 minutes of daylight.

The earliest sunrise is at 5:10 AM on November 29, and the latest sunrise is 1 hour, 37 minutes later at 6:47 AM on July 3. The earliest sunset is at 5:26 PM on June 7, and the latest sunset is 1 hour, 31 minutes later at 6:57 PM on January 14.

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

Toliara experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 7.7 months, from October 2 to May 23, during which time the comfort level is muggy, oppressive, or miserable at least 27% of the time. The muggiest day of the year is February 8, with muggy conditions 98% of the time.

The least muggy day of the year is July 24, with muggy conditions 4% 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 Toliara experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.4 months, from June 16 to November 29, with average wind speeds of more than 5.9 miles per hour. The windiest day of the year is September 28, with an average hourly wind speed of 6.5 miles per hour.

The calmer time of year lasts for 6.6 months, from November 29 to June 16. The calmest day of the year is March 8, with an average hourly wind speed of 5.3 miles per hour.

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

The wind is most often from the east for 2.1 weeks, from February 14 to March 1 and for 1.5 months, from June 15 to July 29, with a peak percentage of 43% on June 26. The wind is most often from the south for 3.5 months, from March 1 to June 15 and for 6.5 months, from July 29 to February 14, with a peak percentage of 42% on April 23.

Toliara 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 3.4 months, from December 25 to April 7, with an average temperature above 83°F. The day of the year with the warmest water is February 13, with an average temperature of 84°F.

The time of year with cooler water lasts for 3.8 months, from June 15 to October 10, with an average temperature below 77°F. The day of the year with the coolest water is August 9, 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 3.2 months, from September 30 to January 4, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest day of the year is November 17, with an average of 7.6 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 21, with an average of 4.4 kWh.

For the purposes of this report, the geographical coordinates of Toliara are -23.350 deg latitude, 43.667 deg longitude, and 13 ft elevation.

The topography within 2 miles of Toliara is essentially flat, with a maximum elevation change of 79 feet and an average elevation above sea level of 16 feet. Within 10 miles is essentially flat (692 feet). Within 50 miles contains significant variations in elevation (3,219 feet).

The area within 2 miles of Toliara is covered by grassland (75%) and water (23%), within 10 miles by water (53%) and grassland (40%), and within 50 miles by water (46%) and grassland (37%).

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

Toliara 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 Toliara, 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.