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Climate - Ghana


Average weather, temperature, rainfall, sunshine

Flag - Ghana

Map - Ghana

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In Ghana, the climate is tropical, hot all year round, with a dry season in winter and a rainy season in summer due to the African monsoon.
Ghana is an African country located south of the Sahara, and facing the Gulf of Guinea in the southern part.
The rainy season lasts from May to September in the north, from April to October in the center, and from April to November in the south.
On the contrary, in the eastern part of the coast, the rainy season is shorter and goes from April to June, with a break in July and August, and a slight recovery in September and October.
The rainiest area is the south, where precipitation is above 1,500 millimeters (60 inches) per year, and even more so the small west coast area, where it reaches 2,000 mm (80 in) per year.
The driest areas are the north, where the rainfall amounts to around 1,000 mm (40 in) per year, and the eastern coast, which includes Accra, where it drops below 800 mm (31.5 in).
Anyway, as we have said, in the north, there's only one rainy season, which reaches its peak in the summer months, while on the coast, where there is a break in July and August, the rainy season is divided into two.

In the following image, we can see the climatic zones of Ghana.

Climates in Ghana

Index


  • The center-north - Bolgatanga
  • The south - Kumasi
  • The coast - Accra, Axim
  • When to go
  • What to pack

The center-north



In the center and north, winter is very hot: daytime temperatures are usually about 35 °C (95 °F) in December and January, even though the air is dry and nights are quite cool. Sometimes, however, nights can get a bit cold in the center-north, with lows dropping to around 10 °C (50 °F).
A dry, dust-laden wind, called Harmattan, often blows from the desert.
From February to April, the temperature increases further, easily exceeding 40 °C (104 °F) in the north.

But then comes the monsoon. In March in the center and in April in the north, early showers and thunderstorms may occur, usually in the afternoon or evening, which become more substantial, exceeding 100 mm (4 in) per month in the following month (ie April in the center and May in the north).
Owing to thunderstorms and clouds brought by the ocean currents, the temperature gradually decreases, and from July to September, when clouds and rains are more frequent, it drops to around 30/31 °C (86/88 °F), but on the other hand, air humidity increases.

The rains cease in October in the north and in November the center; with the dry wind from the north, hot and sunny conditions return. At the end of the year, rainfall totals 1,000 mm (40 in) in the north and 1,200/1,300 mm (47/51 in) in the center, where, as previously mentioned, the rainy season is longer.

Bolgatanga

Here are the average temperatures of Bolgatanga, in the far north.
Bolgatanga - Average temperatures (1981-2010)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January19.934.727.3689481.1
February22.637.430739986
March25.839.232.57810390.5
April26.938.632.88010191
May25.536.130.8789787.4
June23.832.928.4759183
July22.931.127738880.6
August22.730.426.6738779.8
September22.431.226.8728880.2
October22.834.328.6739483.4
November21.436.729719884.3
December19.935.527.7689681.9
Year2334.828.973.594.784

As mentioned, rainfall in the north amounts to about 1,000 mm (40 in) per year. Here is the average rainfall in Bolgatanga.
Bolgatanga - Average precipitation
MonthMillimetersInchesDays
January001
February50.21
March150.61
April451.84
May1054.16
June1405.59
July1706.711
August2551014
September1807.112
October552.25
November50.21
December50.21
Year97038.266

The north is the sunniest area of Ghana. The sun often shines in the long dry season, while in the rainy period, the hours of sunshine decrease a bit. Here are the hours of sunshine per day in Bolgatanga.
Bolgatanga - Sunshine hours
MonthAverageTotal
January9.5290
February9255
March8255
April8245
May8.5270
June8245
July7220
August6190
September7215
October9280
November9.5290
December9280
Year8.33030

Northern Ghana

The south



In the south, the winter is a bit less hot, in fact, the daytime temperatures are about 31/32 °C (88/90 °F) in December and January and reach 34 °C (93 °F) in February. Here, there is almost no warming in spring because the rains begin as early as in March.

Kumasi

Here are the average temperatures of Kumasi, located in the south.
Kumasi - Average temperatures (1981-2010)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January21.132.827709180.5
February22.634.428.5739483.3
March2333.828.4739383.1
April22.932.727.8739182
May22.831.827.3738981.1
June22.130.226.2728679.1
July21.528.625718377.1
August21.328.224.8708376.6
September21.629.325.5718577.8
October21.930.826.4718779.4
November22.331.927.1728980.8
December21.731.626.6718980
Year22.131.326.6571.788.480

The rainiest month in the south is June (while, as we have seen, in the centre-north it is August). From mid-July to mid-September, the rains decrease a bit, and then they resume from mid-September to early November. In the south, rainfall reaches 1,300/1,400 mm (51/55 in) per year, and even more in some areas to the east of Lake Volta and to the south-west of Kumasi.
Here is the average precipitation in Kumasi.
Kumasi - Average precipitation
MonthMillimetersInchesDays
January200.81
February5024
March1104.37
April1505.99
May1606.311
June2108.312
July1405.59
August853.38
September1706.712
October1455.713
November451.85
December301.22
Year131551.893

In the south, the sun does not shine very often; in fact, even in the short dry period, a bit of cloudiness can form, while from July to September, the sky is normally cloudy.
Kumasi - Sunshine hours
MonthAverageTotal
January6185
February7200
March7215
April7210
May6185
June5150
July395
August260
September390
October5155
November7210
December6185
Year5.31945

Lake Volta

The coast



Along the coast, the temperature is similar to that of the south, but winter is wetter and night temperatures are higher. Sometimes, however, the dry Harmattan can arrive even here.
On the coast, as well as in the rest of the country, the summer months are the least hot of the year, though the humidity is high, actually, it is even higher than in inland areas because of the proximity to the sea; on the other hand, the sea breeze blows, reducing the feeling of stuffiness.
As for the rains, there is a remarkable difference between the western part of the coast, which is very rainy, and the eastern part, where Accra is located, which is much less rainy.

Accra

Here are the average temperatures of Accra, the capital.
Accra - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January24.832.428.6779083.5
February25.632.629.1789184.4
March25.63329.3789184.7
April25.532.529789184.2
May24.931.828.3778983
June24.129.827758680.5
July23.628.526.1748378.9
August23.128.225.7748378.2
September23.729.626.7758580
October2430.827.4758781.3
November24.731.928.3768982.9
December2532.328.6779083.5
Year24.631.127.7576.28882

In spring, the first showers occur in March, and peak in June, when precipitation reaches 175 mm (6.9 in) per month. But later, because the so-called "Intertropical Convergence Zone" moves to the north, the rainfall decreases sharply, so much so that just 20 mm (0.8 in) of rain fall in August. Nevertheless, from June to September, the sky remains usually cloudy.
In September and October, the rains increase again, but they do not reach 100 mm (4 in) per month.
In Accra, only 740 mm (29 in) of rain fall per year, and basically, the only very rainy months are May and June, and sometimes, the first half of July. Here is the average precipitation.
Accra - Average precipitation
MonthMillimetersInchesDays
January100.41
February150.61
March552.24
April853.35
May1505.98
June1756.910
July652.65
August200.84
September451.85
October652.66
November301.23
December2511
Year74029.153

In summer, the sky in Accra is often cloudy even in the period when rainfall decreases, from July to September.
Accra - Sunshine hours
MonthAverageTotal
January7210
February7.5205
March7215
April7.5220
May7210
June4.5140
July4.5145
August5155
September5.5170
October7.5225
November8235
December8240
Year6.52380

The sea in Ghana is warm enough for swimming all year round, even though the water temperature decreases a little from July to September.
Accra - Sea temperature
MonthCelsius (°C)Fahrenheit (°F)
January27.582
February27.582
March28.583
April2984
May2984
June27.581
July2577
August2475
September2577
October2780
November28.583
December28.583
Year27.180.9

Accra

Axim

In Axim, on the western part of the coast, temperatures are similar to those in Accra, although they are a little lower because the climate is more humid and rainy, and because it is not affected by the heat island of the big city. Here are the average temperatures.
Axim - Average temperatures (1981-2010)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January23.630.327748780.5
February24.931.128778882.4
March24.931.328.1778882.6
April24.631.227.9768882.2
May24.130.427.2758781.1
June23.828.626.2758379.2
July23.627.525.6748278
August232725738177
September23.527.625.6748278
October23.828.926.4758479.4
November23.630.427748780.6
December23.930.627.2758781.1
Year23.929.626.775.185.280

However, as mentioned, in this part of the coast, the rains are much more abundant, and from May to mid-July, they become really heavy, reaching up to 500 mm (20 in) per month.
The summer break is evident here as well, and runs from mid-July to mid-September, but then the rains return substantial, although they do not reach the peaks of the first part of the rainy season.
The rains linger on until December, so the only relatively dry months here are January and February, in addition to August. In this area, the rainfall can reach 2,000 mm (80 in) per year.
Here is the average precipitation in Axim.
Axim - Average precipitation
MonthMillimetersInchesDays
January401.63
February451.84
March1003.96
April1706.710
May31512.416
June49019.317
July1706.710
August602.48
September853.310
October2007.913
November1405.510
December652.65
Year187573.8112

When to go



The best time to visit Ghana is generally the winter, from December to February, since it is the driest and sunniest period of the year: the weather is generally good, although it's hot during the day in the center-north.
In the north, the best time is from November to January because in February it gets even hotter. In November, the last rains occur in the south, and even in December on the west coast. So, the best month to visit Ghana as a whole is January.

What to pack



In winter: in Accra and the coast, bring light clothes for the day, a light sweatshirt for the evening, and a scarf for the wind-borne sand and dust. In the north, bring light clothing, a sweatshirt and a light jacket for the evening, and a scarf for the desert wind.

In summer: bring tropics-friendly, light clothing of natural fibers, an umbrella, a light sweatshirt and a light raincoat for the rain showers.

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