Average Weather in Boffa Guinea

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5. Boffa

In Boffa, the wet season is warm, oppressive, and overcast and the dry season is hot, muggy, and partly cloudy. Over the course of the year, the temperature typically varies from 72°F to 95°F and is rarely below 69°F or above 98°F.

The hot season lasts for 3.7 months, from January 15 to May 5, with an average daily high temperature above 92°F. The hottest day of the year is March 1, with an average high of 95°F and low of 75°F.

The cool season lasts for 3.7 months, from June 25 to October 16, with an average daily high temperature below 84°F. The coldest day of the year is January 1, with an average low of 72°F and high of 90°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 Boffa, 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 Boffa begins around November 15 and lasts for 5.6 months, ending around May 2. On February 2, 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 May 2 and lasts for 6.4 months, ending around November 15. On August 8, the cloudiest day of the year, the sky is overcast or mostly cloudy 85% of the time, and clear, mostly clear, or partly cloudy 15% 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 Boffa varies very significantly throughout the year.

The wetter season lasts 4.7 months, from May 28 to October 19, with a greater than 47% chance of a given day being a wet day. The chance of a wet day peaks at 93% on August 17.

The drier season lasts 7.3 months, from October 19 to May 28. 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 93% 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. Boffa experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.2 months, from April 21 to November 28, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 8, with an average total accumulation of 25.7 inches.

The rainless period of the year lasts for 4.8 months, from November 28 to April 21. The least rain falls around January 10, with an average total accumulation of 0.0 inches.

The length of the day in Boffa does not vary substantially over the course of the year, staying within 43 minutes of 12 hours throughout. In 2017, the shortest day is December 21, with 11 hours, 32 minutes of daylight; the longest day is June 21, with 12 hours, 43 minutes of daylight.

The earliest sunrise is at 6:33 AM on May 30, and the latest sunrise is 45 minutes later at 7:18 AM on January 27. The earliest sunset is at 6:30 PM on November 16, and the latest sunset is 52 minutes later at 7:22 PM on July 12.

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

Boffa experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.5 months, from March 4 to December 20, during which time the comfort level is muggy, oppressive, or miserable at least 57% of the time. The muggiest day of the year is August 15, with muggy conditions 100% of the time.

The least muggy day of the year is January 16, with muggy conditions 42% 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 Boffa experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 2.9 months, from June 23 to September 19, with average wind speeds of more than 3.8 miles per hour. The windiest day of the year is August 8, with an average hourly wind speed of 5.3 miles per hour.

The calmer time of year lasts for 9.1 months, from September 19 to June 23. The calmest day of the year is November 13, with an average hourly wind speed of 2.3 miles per hour.

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

The wind is most often from the north for 1.1 months, from November 15 to December 19, with a peak percentage of 35% on November 28. The wind is most often from the west for 11 months, from December 19 to November 15, with a peak percentage of 34% on January 1.

Boffa 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 1.8 months, from October 20 to December 14, with an average temperature above 83°F. The day of the year with the warmest water is November 19, with an average temperature of 84°F.

The time of year with cooler water lasts for 2.9 months, from February 2 to April 30, with an average temperature below 80°F. The day of the year with the coolest water is March 22, with an average temperature of 79°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 2.6 months, from February 11 to April 30, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is April 1, with an average of 6.6 kWh.

The darker period of the year lasts for 5.2 months, from June 6 to November 12, with an average daily incident shortwave energy per square meter below 4.4 kWh. The darkest day of the year is October 19, with an average of 3.8 kWh.

For the purposes of this report, the geographical coordinates of Boffa are 10.167 deg latitude, -14.033 deg longitude, and 30 ft elevation.

The topography within 2 miles of Boffa contains only modest variations in elevation, with a maximum elevation change of 115 feet and an average elevation above sea level of 29 feet. Within 10 miles contains only modest variations in elevation (538 feet). Within 50 miles contains significant variations in elevation (3,284 feet).

The area within 2 miles of Boffa is covered by water (33%), trees (26%), cropland (17%), and shrubs (15%), within 10 miles by trees (35%) and shrubs (29%), and within 50 miles by water (41%) and trees (23%).

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

Boffa 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 Boffa, 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.