Climate and monthly weather forecastWa, Ghana
Climate and monthly weather forecast
The climate of Wa
Wa, Ghana, lies in the Köppen climate zone described as Tropical wet and dry or savanna, also known as the Aw group. Nestled in the extreme north-west of the country, Wa experiences distinctive variations in temperature, humidity, and precipitation patterns throughout the year, which play a crucial role in shaping its climate.The yearly cycle of weather is marked by temperatures ranging from 20.3°C (68.5°F) to 39.7°C (103.5°F). Warm temperatures are a constant, peaking at a high of 39.7°C (103.5°F) in March and never dipping below 20.3°C (68.5°F) in January. The nights, although relatively cooler, maintain a comfortable warmth. Significant humidity fluctuations occur throughout the year, with the relative humidity levels reaching as high as 82% in August and dropping to a low of 14% in January.
Rainfall in Wa is seasonal, with the heaviest precipitation observed from July to September, reaching a peak at 155mm (6.1") in August. Contrastingly, December and January are nearly devoid of rainfall, with 0mm (0") precipitation recorded. Sunshine hours also exhibit a mixed picture, peaking at 12.7 hours in June and July and dropping to 11.5 hours in December. The cloud coverage shows a similar trend, increasing during the wet season and decreasing during the dry months.
Wa's climatic conditions are additionally influenced by the wind. Wind speeds average between 6.5km/h (4mph) to 9.6km/h (6mph), with February experiencing the highest wind gusts reaching 14.1km/h (8.8mph).
The best time to visit Wa
Visitors planning a trip to Wa may wish to consider the months of November to February. During this period, temperatures are relatively milder, ranging between 20.3°C (68.5°F) to 36.7°C (98.1°F) with slowed down rain showers. The low rainfall days make outdoor activities feasible, while humidity levels, as low as 14% in January, make the weather less oppressive. Besides, with longer daylight hours, tourists can make the most out of their visit.The worst time to visit Wa
The least favorable months to visit Wa are between July and September. This period is marked by the highest rainfall observed throughout the year, peaking at 155mm (6.1") in August. The high humidity levels, peaking at 82% trough this period, coupled with the high cloud coverage, may limit outdoor activities. In addition, the shorter daylight hours, with just 12.4 hours of sunshine in July and August, may also restrict sightseeing and other daytime pursuits.Spring weather in Wa
Wa does not have a conventional Spring season in terms of weather patterns typically associated with this season. However, if we equate March, April, and May to the Spring months, they are noted for rising temperatures from 36.7°C (98.1°F) to 39.7°C (103.5°F). Rainfall begins to pick up, reaching 61mm (2.4") in May, but the number of rainy days remains relatively low. Humidity begins to rise, and wind speed maintains a steady pace from 7.9km/h (4.9mph) to 9.6km/h (6mph).Summer weather in Wa
June, July, and August are considered the Summer months. During this period, rainfall reaches its zenith, with the wettest month recorded as August with 155mm (6.1") of precipitation. Humidity too is at its peak during this period, making the weather hot and humid. Despite high cloud coverage, there are ample sunshine hours with 12.7 hours per day in June and July.Autumn weather in Wa
September, October, and November correspond to the Autumn period. During these months, although temperatures remain high, ranging from 30.8°C (87.4°F) to 36°C (96.8°F), there is a significant decrease in precipitation. Rainfall drops from 123mm (4.84") in September to just 7mm (0.28") in November, signalling the transition from wet to dry season. Sunshine hours reduce marginally and wind speeds show a slight dip.Winter weather in Wa
Winter in Wa, spanning December, January, and February, is characterized by more tolerable temperatures, from 20.3°C (68.5°F) to 38.3°C (100.9°F). Rainfall is virtually non-existent in December and January, making these the driest months. Longer daylight hours and lower humidity levels provide a pleasant respite from the hot and humid conditions experienced throughout much of the year. Wind speeds tend to pick up during this period, peaking at 9km/h (5.6mph) in February.Weather in January
Beginning the year, the climatic conditions in Wa, Ghana are defined by a remarkably low level of humidity at only 14%. The weather is characteristically warm with a generous amount of daylight. Clear skies greet the inhabitants for most days, contributing to a high visibility. Weather in January »Weather in February
Wa experiences a slight increase in humidity levels during February, although the overall environment remains significantly dry compared with the wet season. February's weather highlights a perfect balance between warm temperature ranges, light winds and a small upsurge in the monthly rainfall quantity, amounting up to 10mm (0.39"). Weather in February »Weather in March
March continues the trend of increasing humidity levels in Wa, but is still far from the peak of the wet season. The transition into the wet season begins, indicated by an uptick in rainfall amounts to 28mm (1.1") during this month. Weather in March »Weather in April
By April, the weather in Wa has noticeably changed with the arrival of increased cloud cover and rainfall levels that reach 33mm (1.3"). Correspondingly, relative humidity also increases, giving the atmosphere a noticeably muggy feel. Weather in April »Weather in May
May in Wa, Ghana witnesses a climb in rainfall quantities up to 61mm (2.4") and a marked increase in relative humidity to 53%. This means the wet season is in full swing with frequent showers and overcast skies. There is still a substantial amount of daylight available, although the high levels of humidity can make the atmosphere feel intensely muggy. Weather in May »Weather in June
June is in the middle of the wet season in Wa, and the weather reflects this with an increase in cloud cover and relative humidity up to 62%. The maximum recorded temperature is slightly lower as compared to May, indicating some relief from the previous heat. Weather in June »Weather in July
As the peak of the wet season, July experiences a notable increase in cloud cover and rainfall, tallying at 31.2°C (88.2°F) as well as a high relative humidity of 74%. The climatic condition of Wa in July is thoroughly saturated with cloud cover as well as ample rain showers. Weather in July »Weather in August
The month of August represents the final heights of the wet season for Wa. August characterizes a dynamic blend of downpours and clear skies notwithstanding the maximum relative humidity value of the year recorded at 82%. With the significant increase in precipitation, the weather becomes a mix of heavy rain intermixed with occasions of bright sunshine. Weather in August »Weather in September
September witnesses a rapid decrease in relative humidity from the soaring value of 82% in August. The significant drop in both rainfall and relative humidity marks the beginning of the transition into the dry season. The weather in Wa, during this month, is a blend of occasional rain showers, plenty of sunshine and declining temperatures. Weather in September »Weather in October
October brings a noticeable shift in climate, characterized by dropping rainfall levels, a more significant temperature climb, and declining humidity. The shift from the wet season gives way to a more arid and less cloud-filled atmosphere. Weather in October »Weather in November
November represents a continuing transition towards drier conditions for Wa. Relative humidity falls to 40%, making the atmosphere significantly drier compared to the wet season. As rainfall levels plummet to 7mm (0.28"), the local populace enjoys brighter days and cooler nights. Weather in November »Weather in December
Concluding the year, the weather in Wa, Ghana exhibits typical dry season characteristics with virtually no rainfall and a relative humidity of only 17%. With an average high temperature of 36.1°C (97°F), December presents a warm but dry climate for the local inhabitants. Weather in December »Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The least humid month in Wa, Ghana, is January, with an average relative humidity of 14%.
In Wa, rain does not fall in January and December.
Throughout the year, there are 133.7 rainfall days, and 643mm (25.31") of precipitation is accumulated.
February through November are months with rainfall.
The months with the highest UV index are February through May, with an average maximum UV index of 8.
March, recognised by an average high temperature of 39.7°C (103.5°F) and a low of 26°C (78.8°F), is Wa's warmest month.
The month with the most sunshine in Wa, Ghana, is May, with an average of 11.6h of sunshine.
With an average of 12h and 42min of daylight, June has the longest days of the year.
The months with the lowest UV index in Wa are July and August, with an average maximum UV index of 6.
The month of August sees the average lowest temperatures, reaching 29.8°C (85.6°F) at the peak and 21.9°C (71.4°F) at the low.
With an average relative humidity of 82%, August is the most humid month in Wa.
August is the month with the most rainfall in Wa, Ghana. Rain falls for 25.8 days and accumulates 155mm (6.1") of precipitation.
August has the least sunshine of the year in Wa, with an average of 6.5h of sunshine.
December has the shortest days of the year, with an average of 11h and 30min of daylight.
Wa, Ghana, does not observe Daylight Saving Time (DST). GMT timezone is used over the entire year.
Average temperature
Wa, Ghana
The warmest month (with the highest average high temperature) is March (39.7°C).
The month with the lowest average high temperature is August (29.8°C).
The month with the highest average low temperature is April (26.8°C).
The coldest month (with the lowest average low temperature) is January (20.3°C).
Average pressure
Wa, Ghana
- Average pressure in January:
1011.2mbar - Average pressure in February:
1009.3mbar - Average pressure in March:
1008.3mbar - Average pressure in April:
1008.2mbar - Average pressure in May:
1009.6mbar - Average pressure in June:
1011.6mbar
- Average pressure in July:
1012.4mbar - Average pressure in August:
1012.3mbar - Average pressure in September:
1011.9mbar - Average pressure in October:
1010.5mbar - Average pressure in November:
1009.7mbar - Average pressure in December:
1010.9mbar
The month with the highest atmospheric pressure is July (1012.4mbar).
The month with the lowest atmospheric pressure is April (1008.2mbar).
Average wind speed
Wa, Ghana
- Average wind speed in January:
9km/h - Average wind speed in February:
8.4km/h - Average wind speed in March:
7.9km/h - Average wind speed in April:
9.2km/h - Average wind speed in May:
9.6km/h - Average wind speed in June:
9.6km/h
- Average wind speed in July:
9km/h - Average wind speed in August:
8.2km/h - Average wind speed in September:
6.5km/h - Average wind speed in October:
6.9km/h - Average wind speed in November:
6.5km/h - Average wind speed in December:
8.7km/h
The windiest months (with the highest average wind speed) are May and June (9.6km/h).
The calmest months (with the lowest average wind speed) are September and November (6.5km/h).
Average humidity
Wa, Ghana
The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is January (14%).
Average rainfall
Wa, Ghana
The wettest month (with the highest rainfall) is August (155mm).
The driest months (with the least rainfall) are January and December (0mm).
Average rainfall days
Wa, Ghana
- Average rainfall days in January:
0.2 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
7.3 days - Average rainfall days in April:
9.8 days - Average rainfall days in May:
11.6 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
21 days - Average rainfall days in August:
25.8 days - Average rainfall days in September:
23.1 days - Average rainfall days in October:
15.1 days - Average rainfall days in November:
3.2 days - Average rainfall days in December:
0.2 days
The month with the highest number of rainy days is August (25.8 days).
The months with the least rainy days are January and December (0.2 days).
Average daylight / Average sunshine
Wa, Ghana
- Average daylight in January:
11h and 36min - Average daylight in February:
11h and 48min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 36min - Average daylight in June:
12h and 42min
- Average daylight in July:
12h and 36min - Average daylight in August:
12h and 24min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 54min - Average daylight in November:
11h and 42min - Average daylight in December:
11h and 30min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in January:
9h and 48min - Average sunshine in February:
9h and 42min - Average sunshine in March:
9h and 36min - Average sunshine in April:
10h and 36min - Average sunshine in May:
11h and 36min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
8h and 48min - Average sunshine in August:
6h and 30min - Average sunshine in September:
8h and 36min - Average sunshine in October:
9h and 0min - Average sunshine in November:
7h and 42min - Average sunshine in December:
7h and 42min
The month with the most sunshine is May (Average sunshine: 11h and 36min).
The month with the least sunshine is August (Average sunshine: 6h and 30min).
Average sunshine days
Wa, Ghana
- Average sunshine days in January:
30.7 days - Average sunshine days in February:
25.3 days - Average sunshine days in March:
22.1 days - Average sunshine days in April:
18.8 days - Average sunshine days in May:
18.1 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
8.8 days - Average sunshine days in August:
4.1 days - Average sunshine days in September:
5.9 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
26.2 days - Average sunshine days in December:
30.8 days
The month with the most sunshine days is December (30.8 days).
The month with the least sunshine days is August (4.1 days).
Average UV index
Wa, Ghana
The months with the highest UV index are February, March, April and May (UV index 8).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover
Wa, Ghana
The month with the most cloud cover is August (Cloud cover 53).
The month with the least cloud cover is December (Cloud cover 4).
Average visibility
Wa, Ghana
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are August and September (8km).
