A little weather, or what is Ghana’s climate like? I thought
I would compare and contrast Toronto, where I come from so those who are here
in Ghana and those who are back home in Canada can see the differences. As you can see, Canada being temperate rather than tropical, shows quite a large swing in temperatures over the year.
Toronto, Ontario, Canada
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Accra, Ghana
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Record High Temperature: 40.6 degrees Celsius
Record Low Temperature: -32.8 degrees Celsius
(Canada record low is -63 degrees and record high is 45
degrees Celsius)
Toronto's climate is among the mildest in Canada east of
the Rocky Mountains, where the annual average temperature exceeds 9 °C (48
°F). There is a high degree of variability from year to year and sometimes
even over a period of days, particularly during the winter months.
Springs and autumns feature varied weather with
alternating periods of dry, sunny weather and rain. These seasons are brief
when compared to summer or winter seasons, many days in these seasons are
sunny with pleasant rather than warm or cold temperatures. Nights are
generally cool, but frosts are rare. Snow can fall in early spring or late
fall but usually melts quickly after contact with the ground. At these times
changeable times of the year, temperature contrasts (up to 30 °C (54 °F) in
extreme cases) can occur within a short time frame due to rapidly changing
air masses that sweep across the continent, Annual average precipitation is
834 mm (32.83 in).
Winter
and snowfall
Despite being cold, extended snow free periods occur in
most winter seasons. Average winter snowfall is 133.1 cm (52.4 in) at the
weather station in Downtown Toronto.
The average January maximum/minimum is −1 °C (30 °F)/−7 °C
(19 °F) in the city. There are usually a few colder periods where
temperatures remain below −10 °C (14 °F) and less frequently below −20 °C (−4
°F) at night(especially in the northern suburbs), with wind chills making it
feel like −30 °C (−22 °F).
Summer
Maximum temperatures typically range from 23 to 31 °C (73
to 88 °F) with moderate to high humidity, proximity to Lake Ontario and the
other lakes contribute to summer moisture content but far away sources like
the Gulf of Mexico also factor in. Temperatures over 32 °C (90 °F) occur but
usually no longer than over a period of a few days and they very rarely
exceed 38 °C (100 °F). Night temperatures generally hover close to 20 °C (68
°F) in the city but during hotter spells can remain closer to 25 °C (77 °F).
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Record High Temperature: 38 degrees Celsius
Record Low Temperature: 15 degrees Celsius
(Ghana record low is 8.9 degrees and record high is 47.2
degrees Celsius)
Owing to its location in the Dahomey Gap, where the coast
runs parallel to the prevailing moist monsoonal winds, Accra features a
tropical savanna climate that borders on a semi-arid climate. The average
annual rainfall is about 730 mm, which falls primarily during Ghana's two
rainy seasons. The chief rainy season begins in April and ends in mid-July,
whilst a weaker second rainy season occurs in October. Rain usually falls in
short intensive storms and give rise to local flooding where drainage
channels are obstructed.
There is very little variation in temperature throughout
the year. The mean monthly temperature ranges from 24.7 °C (76.5 °F) in
August (the coolest) to 28 °C (82.4 °F) in March (the hottest), with an
annual average of 26.8 °C (80.2 °F). It should be noted, however, that the
"cooler" months tend to be more humid than the warmer months. As a
result, during the warmer months and particularly during the windy harmattan
season, the city experiences a breezy "dry heat" that feels less
warm than the "cooler" but more humid rainy season.
As Accra is close to the equator, the daylight hours are
practically uniform during the year. Relative humidity is generally high,
varying from 65% in the mid-afternoon to 95% at night. The predominant wind
direction in Accra is from the WSW to NNE sectors. Wind speeds normally range
between 8 to 16 km/h. High wind gusts occur with thunderstorms, which
generally pass in squall along the coast.
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