Average Weather in Conakry Guinea

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3. Conakry
4. Conakry

In Conakry, the wet season is warm and overcast, the dry season is hot and partly cloudy, and it is oppressive year round. Over the course of the year, the temperature typically varies from 76°F to 89°F and is rarely below 72°F or above 92°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 Conakry, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Conakry begins around November 16 and lasts for 5.3 months, ending around April 25. On February 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 63% of the time, and overcast or mostly cloudy 37% of the time.

The cloudier part of the year begins around April 25 and lasts for 6.7 months, ending around November 16. On August 17, the cloudiest day of the year, the sky is overcast or mostly cloudy 84% of the time, and clear, mostly clear, or partly cloudy 16% 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 Conakry varies very significantly throughout the year.

The wetter season lasts 4.7 months, from May 27 to October 18, with a greater than 45% chance of a given day being a wet day. The chance of a wet day peaks at 90% on August 17.

The drier season lasts 7.3 months, from October 18 to May 27. The smallest chance of a wet day is 0% on January 1.

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 90% on August 17.

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. Conakry experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.5 months, from April 14 to November 30, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 6, with an average total accumulation of 30.6 inches.

The rainless period of the year lasts for 4.5 months, from November 30 to April 14. The least rain falls around January 9, with an average total accumulation of 0.0 inches.

The length of the day in Conakry does not vary substantially over the course of the year, staying within 40 minutes of 12 hours throughout. In 2017, the shortest day is December 21, with 11 hours, 34 minutes of daylight; the longest day is June 21, with 12 hours, 41 minutes of daylight.

The earliest sunrise is at 6:33 AM on May 29, and the latest sunrise is 44 minutes later at 7:16 AM on January 28. The earliest sunset is at 6:29 PM on November 15, and the latest sunset is 50 minutes later at 7:19 PM on July 12.

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

Conakry experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 11 months, from January 30 to December 18, during which time the comfort level is muggy, oppressive, or miserable at least 74% of the time. The muggiest day of the year is August 10, with muggy conditions 100% of the time.

The least muggy day of the year is January 3, with muggy conditions 65% 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 Conakry experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 3.0 months, from June 21 to September 22, with average wind speeds of more than 4.5 miles per hour. The windiest day of the year is August 8, with an average hourly wind speed of 6.3 miles per hour.

The calmer time of year lasts for 9.0 months, from September 22 to June 21. The calmest day of the year is November 16, with an average hourly wind speed of 2.7 miles per hour.

The predominant average hourly wind direction in Conakry is from the west throughout the year.

Conakry 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.

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 2.7 months, from February 5 to April 26, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is March 21, with an average of 6.3 kWh.

The darker period of the year lasts for 5.4 months, from June 1 to November 13, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest day of the year is October 19, with an average of 3.7 kWh.

For the purposes of this report, the geographical coordinates of Conakry are 9.538 deg latitude, -13.677 deg longitude, and 0 ft elevation.

The topography within 2 miles of Conakry contains only modest variations in elevation, with a maximum elevation change of 102 feet and an average elevation above sea level of 11 feet. Within 10 miles contains only modest variations in elevation (535 feet). Within 50 miles contains significant variations in elevation (3,314 feet).

The area within 2 miles of Conakry is covered by water (61%) and artificial surfaces (32%), within 10 miles by water (87%) and artificial surfaces (10%), and within 50 miles by water (61%) and trees (13%).

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

Conakry 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 Conakry, 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.