Climate and monthly weather forecastTarkwa, Ghana
Climate and monthly weather forecast
The climate of Tarkwa
Tarkwa is located within the atmospheric sphere of the Köppen climate classification 'Aw'. This indicative tag unfolds Tarkwa's canvas of weather conditions as primarily Tropical wet and dry or savanna. Consequently, this tag assuredly points towards a combination of high annual temperatures along with a significant occurrence of heavy rainfall.In Tarkwa, temperatures annually revolve around a rather high base. A steady journey is notched from 28.2°C (82.8°F) in July, scaling a high of around 33.5°C (92.3°F) in both March and April, then simmering down to around 28.6°C (83.5°F) in August. Humidity keeps a steady stream throughout the year, barely dipping below the 70% range, with a high tendency to elevate in the middle months, from June to September, when it strikingly peaks to around 89%.
Rainfall in Tarkwa quite evidently mirrors a direct relationship with the humidity levels. Beginning from 53mm (2.09") in January, rainfall amounts gradually hike up to around 202mm (7.95") in June. Then, after maintaining intensity through the summer months, it slowly rescinds to approximately 63mm (2.48") by the concluding month of December.
Wind speeds recorded are dominantly within the range of 5.3km/h (3.3mph) to 8km/h (5mph). However, maximum gusts have been recorded at 11.7km/h (7.3mph) during August. It is interesting to note, however, that there is hardly any significant variation in the daylight hours captured over Tarkwa, with the difference between maximum and minimum daylight hours clocking in at merely between 11.8 hours and 12.4 hours.
The best time to visit Tarkwa
The ideal time to visit Tarkwa is arguably between January and March. This period is characterized by a decline in the heavy rainfall patterns, from 53mm (2.09") in January to 90mm (3.54") in February and 131mm (5.16") till March. Considering relative humidity, it ranges from 73% in January and advances to 79% in the subsequent months, still comfortable for outdoor exploration.The worst time to visit Tarkwa
The months from May to September could be considered less than ideal for a visit to Tarkwa. Rainfall levels are relatively high during these months, peaking at 202mm (7.95") in June. Tarkwa witnesses a relative humidity range of 86% to 89% in these months, which might prove uncomfortably damp and sticky.Spring weather in Tarkwa
Spring in Tarkwa spans from March to May. During this period, temperature maintains high levels, averaging at 33.5°C (92.3°F) in both March and April and then decreasing to 32°C (89.6°F) in May. Rainfall enhances from 131mm (5.16") in March to 163mm (6.42") by the end of spring. Humidity increases, reaching from 79% at the beginning of spring to 83% in May. The UV levels remain constant at 7 throughout spring.Summer weather in Tarkwa
Summer in Tarkwa, characterized from June to August, indicates the ramping up of rainfall, with June witnessing the maximum at 202mm (7.95") and trailing down to 85mm (3.35") by August. Conjointly, the humidity levels peak to an annual high at 89% in September. The temperatures, however, dip to their lowest for the year, recording at 28.2°C (82.8°F) in July and rising slightly to 28.6°C (83.5°F) in August.Autumn weather in Tarkwa
The autumn season in Tarkwa, from September to November, experiences a gradual decrease in rainfall, from 154mm (6.06") to 124mm (4.88"). The temperatures during these months escalate slightly from 28.6°C (83.5°F) in September to 32°C (89.6°F) in November. Humidity levels, while not reaching the summer highs, still register between the range of 88% to 84%.Winter weather in Tarkwa
Winter months in Tarkwa, from December to February, are relatively dry when compared to the rest of the year, with rainfall levels decreasing to 63mm (2.48") in December, then increasing to 90mm (3.54") in February. The temperatures are relatively stable, registering in the range of 33.4°C (92.1°F) to 34.2°C (93.6°F), the highest over the year. The humidity levels stay moderately comfortable, lying in the range of 73% to 78%, presenting travellers a welcome respite from the high humidity levels experienced during other times of the year.Weather in January
Tarkwa, Ghana greets the new year with moderate warmth, showing minimal variation in weather from December. Humidity and rainfall tend to be relatively high, fostering wet conditions. However, daylight hours are plentiful, providing ample sunshine for outdoor activities. Weather in January »Weather in February
The weather in February experiences a slight increase in both temperatures and humidity from January. While rain levels increase, the number of hours of daylight remains largely unchanged. Wind speeds incrementally increase but remain moderate. Weather in February »Weather in March
As the year progresses, the weather pattern in March shows a continuation of the rising temperatures and humidity witnessed in Tarkwa since the beginning of the year. An increase in rainfall contributes to the heightened humidity levels. Weather in March »Weather in April
April in Tarkwa continues the trend of warm and humid weather set by March, with marginal changes in weather conditions. The rainfall decreases slightly, but the city remains quite damp. The mild wind speed persists, sustaining the gentle, airy feel of the city. Weather in April »Weather in May
May signifies the beginning of a slight decrease in temperatures in Tarkwa, yet the city remains quite warm. Still, the extended daylight hours and increased rainfall promote a humid climate. Wind speed decreases slightly but remains gentle. Weather in May »Weather in June
June carries forward the decreasing trend in temperature exhibited in May, while the high levels of humidity persist. Notably, June experiences the most rainfall observed in Tarkwa, recording a substantial 202mm (7.95") spread across 29 days. Weather in June »Weather in July
July signifies a slight decrease in rainfall from the high levels experienced in June. This decline allows for a respite from the high humidity levels, even though temperatures remain consistently warm. The wind conditions display a gradual increase, producing a soft cooling effect. Weather in July »Weather in August
The weather in August presents favourable conditions for those who seek a relative respite from high rainfall, as Tarkwa experiences a decrease in precipitation levels. Similar to July, August endures decreased hours of sunshine, contributing to overcast days and cooler temperatures. Weather in August »Weather in September
September brings a slight increase in temperature, while rainfall and humidity levels rise significantly. In spite of the windy conditions remaining constant, the increase in cloud coverage corresponds with a decrease in visibility and consequently, sunshine hours. Weather in September »Weather in October
October in Tarkwa, Ghana experiences an uptick in temperature, whilst sustaining elevated rainfall and high humidity levels. This climatic blend makes for a humid and moderately warm October, with slightly enhanced wind conditions contributing to a breezier ambiance. Weather in October »Weather in November
The weather in November continues the pattern of warm temperatures displayed in October with less rainfall but high humidity levels. Although wind speed decreases, it remains gentle and bearable. Daylight and sunshine hours continue their declining trend. Weather in November »Weather in December
December brings cooler temperatures, lower humidity levels, and a clear decrease in rainfall, setting the stage for a comfortable holiday season in Tarkwa, Ghana. The month embodies a sense of freshness due to fewer wet days and moderate wind conditions. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Tarkwa, Ghana
The warmest month (with the highest average high temperature) is January (34.2°C).
The month with the lowest average high temperature is July (28.2°C).
The months with the highest average low temperature are March and April (24.2°C).
The coldest month (with the lowest average low temperature) is August (21.8°C).
Average pressure
Tarkwa, Ghana
- Average pressure in January:
1010.9mbar - Average pressure in February:
1010mbar - Average pressure in March:
1010.1mbar - Average pressure in April:
1010.2mbar - Average pressure in May:
1011.4mbar - Average pressure in June:
1013.4mbar
- Average pressure in July:
1014mbar - Average pressure in August:
1013.9mbar - Average pressure in September:
1013.1mbar - Average pressure in October:
1011.6mbar - Average pressure in November:
1010.7mbar - Average pressure in December:
1010.8mbar
The month with the highest atmospheric pressure is July (1014mbar).
The month with the lowest atmospheric pressure is February (1010mbar).
Average wind speed
Tarkwa, Ghana
- Average wind speed in January:
5.9km/h - Average wind speed in February:
6.7km/h - Average wind speed in March:
7.2km/h - Average wind speed in April:
6.8km/h - Average wind speed in May:
6.4km/h - Average wind speed in June:
6.8km/h
- Average wind speed in July:
7.6km/h - Average wind speed in August:
8km/h - Average wind speed in September:
7km/h - Average wind speed in October:
6.1km/h - Average wind speed in November:
5.4km/h - Average wind speed in December:
5.3km/h
The windiest month (with the highest average wind speed) is August (8km/h).
The calmest month (with the lowest average wind speed) is December (5.3km/h).
Average humidity
Tarkwa, Ghana
The month with the highest relative humidity is September (89%).
The month with the lowest relative humidity is January (73%).
Average rainfall
Tarkwa, Ghana
- Average rainfall in January:
53mm - Average rainfall in February:
90mm - Average rainfall in March:
131mm - Average rainfall in April:
109mm - Average rainfall in May:
163mm - Average rainfall in June:
202mm
The wettest month (with the highest rainfall) is June (202mm).
The driest month (with the least rainfall) is January (53mm).
Average rainfall days
Tarkwa, Ghana
- Average rainfall days in January:
20.2 days - Average rainfall days in February:
23.5 days - Average rainfall days in March:
28.8 days - Average rainfall days in April:
26.9 days - Average rainfall days in May:
29.4 days - Average rainfall days in June:
29 days
- Average rainfall days in July:
27.8 days - Average rainfall days in August:
27.9 days - Average rainfall days in September:
29.3 days - Average rainfall days in October:
30.5 days - Average rainfall days in November:
29.3 days - Average rainfall days in December:
22.5 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is January (20.2 days).
Average daylight / Average sunshine
Tarkwa, Ghana
- Average daylight in January:
11h and 54min - Average daylight in February:
12h and 0min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 12min - Average daylight in May:
12h and 24min - Average daylight in June:
12h and 24min
- Average daylight in July:
12h and 24min - Average daylight in August:
12h and 18min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 54min - Average daylight in December:
11h and 48min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in January:
9h and 6min - Average sunshine in February:
8h and 18min - Average sunshine in March:
8h and 12min - Average sunshine in April:
9h and 0min - Average sunshine in May:
8h and 42min - Average sunshine in June:
5h and 48min
- Average sunshine in July:
4h and 18min - Average sunshine in August:
4h and 6min - Average sunshine in September:
3h and 54min - Average sunshine in October:
4h and 48min - Average sunshine in November:
6h and 30min - Average sunshine in December:
7h and 36min
The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is September (Average sunshine: 3h and 54min).
Average sunshine days
Tarkwa, Ghana
- Average sunshine days in January:
9.3 days - Average sunshine days in February:
3.4 days - Average sunshine days in March:
1.1 days - Average sunshine days in April:
2 days - Average sunshine days in May:
1 days - Average sunshine days in June:
0.2 days
- Average sunshine days in July:
1.3 days - Average sunshine days in August:
1.3 days - Average sunshine days in September:
0.1 days - Average sunshine days in October:
0.2 days - Average sunshine days in November:
0.3 days - Average sunshine days in December:
7 days
The month with the most sunshine days is January (9.3 days).
The month with the least sunshine days is September (0.1 days).
Average UV index
Tarkwa, Ghana
The months with the highest UV index are January, February, March, April, October, November and December (UV index 7).
The month with the lowest UV index is August (UV index 5).
Average cloud cover
Tarkwa, Ghana
The month with the most cloud cover is September (Cloud cover 79).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility
Tarkwa, Ghana
The months with the highest visibility are January, February, March, April and December (8km).
The month with the lowest visibility is September (5km).





