Average Weather in Salaga GhanaIn Salaga, the wet season is oppressive and overcast, the dry season is muggy and partly cloudy, and it is hot year round. Over the course of the year, the temperature typically varies from 65°F to 96°F and is rarely below 58°F or above 101°F. The hot season lasts for 2.5 months, from January 24 to April 9, with an average daily high temperature above 93°F. The hottest day of the year is February 20, with an average high of 96°F and low of 73°F. The cool season lasts for 3.8 months, from June 22 to October 15, with an average daily high temperature below 86°F. The coldest day of the year is January 1, with an average low of 65°F and high of 91°F. Average High and Low Temperature
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
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. Average Hourly Temperature
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.
CloudsIn Salaga, 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 Salaga begins around October 27 and lasts for 3.8 months, ending around February 20. On December 24, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 66% of the time, and overcast or mostly cloudy 34% of the time. The cloudier part of the year begins around February 20 and lasts for 8.2 months, ending around October 27. On May 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 77% of the time, and clear, mostly clear, or partly cloudy 23% of the time. Cloud Cover
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Salaga varies very significantly throughout the year. The wetter season lasts 6.5 months, from April 9 to October 24, with a greater than 45% chance of a given day being a wet day. The chance of a wet day peaks at 89% on September 14. The drier season lasts 5.5 months, from October 24 to April 9. 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 89% on September 14. Daily Chance of Precipitation
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
RainfallTo 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. Salaga experiences extreme seasonal variation in monthly rainfall. The rainy period of the year lasts for 9.0 months, from February 18 to November 19, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around September 11, with an average total accumulation of 7.9 inches. The rainless period of the year lasts for 3.0 months, from November 19 to February 18. The least rain falls around December 28, with an average total accumulation of 0.1 inches. Average Monthly Rainfall
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.
SunThe length of the day in Salaga does not vary substantially over the course of the year, staying within 37 minutes of 12 hours throughout. In 2017, the shortest day is December 21, with 11 hours, 38 minutes of daylight; the longest day is June 21, with 12 hours, 37 minutes of daylight. Hours of Daylight and Twilight
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
The earliest sunrise is at 5:42 AM on May 27, and the latest sunrise is 41 minutes later at 6:22 AM on January 29. The earliest sunset is at 5:38 PM on November 14, and the latest sunset is 47 minutes later at 6:25 PM on July 13. Daylight saving time (DST) is not observed in Salaga during 2017. Sunrise & Sunset with Twilight
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.
HumidityWe 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. Salaga experiences extreme seasonal variation in the perceived humidity. The muggier period of the year lasts for 10 months, from February 8 to December 13, during which time the comfort level is muggy, oppressive, or miserable at least 41% of the time. The muggiest day of the year is July 30, with muggy conditions 100% of the time. The least muggy day of the year is January 4, with muggy conditions 20% of the time. Humidity Comfort Levels
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.
WindThis 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 Salaga experiences mild seasonal variation over the course of the year. The windier part of the year lasts for 8.0 months, from December 29 to August 29, with average wind speeds of more than 3.2 miles per hour. The windiest day of the year is April 11, with an average hourly wind speed of 3.9 miles per hour. The calmer time of year lasts for 4.0 months, from August 29 to December 29. The calmest day of the year is November 17, with an average hourly wind speed of 2.5 miles per hour. Average Wind Speed
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The predominant average hourly wind direction in Salaga varies throughout the year. The wind is most often from the south for 9.5 months, from February 10 to November 24, with a peak percentage of 84% on May 27. The wind is most often from the east for 2.5 months, from November 24 to February 10, with a peak percentage of 46% on January 1. Wind Direction
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).
Solar EnergyThis 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 per square meter does not vary significantly over the course of the year, remaining within 0.5 kilowatt-hours of 5.2 kilowatt-hours throughout.Average Daily Incident Shortwave Solar Energy
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
TopographyFor the purposes of this report, the geographical coordinates of Salaga are 8.551 deg latitude, -0.519 deg longitude, and 502 ft elevation. The topography within 2 miles of Salaga contains only modest variations in elevation, with a maximum elevation change of 177 feet and an average elevation above sea level of 507 feet. Within 10 miles also contains only modest variations in elevation (335 feet). Within 50 miles contains only modest variations in elevation (666 feet). The area within 2 miles of Salaga is covered by cropland (38%), shrubs (36%), and trees (16%), within 10 miles by cropland (33%) and shrubs (30%), and within 50 miles by shrubs (41%) and cropland (21%). Data SourcesThis report illustrates the typical weather in Salaga, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Salaga 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 Salaga, 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. |