Climate and monthly weather forecast
Amasaman, Ghana

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The climate of Amasaman

Located in Ghana, Amasaman's climate primarily aligns with the Aw, Tropical wet and dry or savanna classification, according to the Köppen Climate Classification. Straddling the equator, Amasaman experiences a tropical climate marked by distinct wet and dry periods throughout the year.

The year in Amasaman shows a cyclical pattern of seasonal shifts. Temperatures maintain a reasonably constant high, ranging at the peak from 27.9°C (82.2°F) to 33.3°C (91.9°F) and never falling below 22.8°C (73°F) at the bottom end. Relative humidity levels fluctuate between 70% and 86%, underlining a moist atmosphere consistently.

The rainy season characterizes the mid-year months, with rainfallmm numbers soaring to a high of 127mm (5") in June from a low of 15mm (0.59") in January. Consequently, this leads to a surge in the rainfall days count, indicating an increase from 9.8 days in January to 28.7 days in October. Storms can often accompany these significant downpours, evidenced by the peak figures in wind gustskm/h that reach 17.4 in August.

The best time to visit Amasaman

For those favoring sunshine and clearer skies, December to February offers the optimal visiting window. These months characteristically display a substantially reduced rainfall, with just 22mm (0.87") to 15mm (0.59") falling in December and January respectively. Correspondingly, these months also see fewer rainfall days, with numbers dwindling to 13.3 and 9.8 days consecutively.

Visibility stands at a steady 10km (6.2mi) during these months, allowing for clear views of the sweeping landscapes. Sunshine hours are plentiful, with an average of 9 hours, and cloud cover minimizes to just 18-20% making these months ideal for outdoor explorations.

The worst time to visit Amasaman

Between the months of May and October, Amasaman witnesses its highest rainfall levels. The rainfallmm numbers surge from 69mm (2.72") in May to a peak of 127mm (5") in June, further accompanied by high wind gusts over 15km/h (9.3mph). The cloud cover also significantly increases, reaching 60% and obstructing much of the sunlight.

During this period, visitors might find outdoor activities more challenging due to the increased likelihood of rainfall and increased humidity levels climbing to as much as 86%. Those not comfortable with a humid, wet climate may find this time of year less favorable for visitation.

Spring weather in Amasaman

Amasaman experiences a humid spring season, from March to May. During these months, the temperature fluctuates from a high of 33.1°C (91.6°F) to 32°C (89.6°F) and a low of 25.6°C (78.1°F) to 25.2°C (77.4°F). Rainfall begins to increase to as high as 69mm (2.72") in May, with relative humidity levels ascending to 77%. Despite the increase in rainfall, the sunshine hours remain ample, averaging at 11.2 hours in April.

Summer weather in Amasaman

Summer, from June to August, is the wettest season in Amasaman with rainfall reaching a peak of 127mm (5") in June. Cloud coverage is dense, extending up to 60%, and humidity ranges from 83% to 84%. Despite this, the temperatures remain warm with highs between 29.3°C (84.7°F) and 27.9°C (82.2°F). It's important to note that despite being the wettest season, the sunshine hours average at around 8.2 hours.

Autumn weather in Amasaman

Autumn, from September to November, witnesses a gradual decrease in rainfall from 126mm (4.96") to 54mm (2.13"). Temperatures continue to remain warm at around 30.1°C (86.2°F) to 31.5°C (88.7°F) with humidity levels averagely static at around 83%. Despite the reducing rains, cloud coverage remains relatively high at around 58%, and sunshine hours start to increase slightly, averaging at around 7.9 to 9 hours.

Winter weather in Amasaman

The winter season in Amasaman, from December to February, offers respite from high rainfall. Rainfall drops considerably to 22mm (0.87") in December and down to 15mm (0.59") by February. The temperature averages between 32.5°C (90.5°F) to 33°C (91.4°F), with humidity ranging from 70% to 73%. The decrease in rainfall days and cloud coverage render clear skies and plentiful sunshine, making winter one of the best times to visit Amasaman.

Weather in January

January in Amasaman, Ghana greets residents with mild temperatures. The month is known for its relative calmness before the onset of more intense heat. The subtle nip in the cooler morning air provides a pleasant start to the day. Weather in January »

Weather in February

Moving into February, the temperature begins to rise, signifying the arrival of the warmer weather. There is a minimal change in humidity levels but rainfall increases to 28mm (1.1"), which is a precursor to the monsoons ahead. Weather in February »

Weather in March

The shift to March is accompanied by an evident increase in rainfall, which measures 37mm (1.46"). This increase predicts the impending start of the rainy season. The city's weather pulses with the early signs of seasonal change, with the cloud percentage going from 26% to 27%. Weather in March »

Weather in April

In April, Amasaman experiences the peak of its initial rainy season with 39mm (1.54") of rainfall. The rising cloud coverage allows for occasional gentle drizzles throughout the month. The sustained breeze ensures the moisture doesn't feel suffocating while the continued warm season minimally affects daily activities. Weather in April »

Weather in May

The month of May brings the maximum amount of rainfall witnessed in a year with 69mm (2.72"), marking the apex of the first rainy season. The month is characterized by overcast skies, increased humidity of 77%, and cooler days. Changes in wind patterns aligned with atmospheric pressure fluctuations become more discernible. Weather in May »

Weather in June

By June, temperatures in Amasaman begin to drop, averaging 29.3°C (84.7°F). Additionally, the amount of sunshine received decreases, foretelling the shorter days ahead. Despite the rain, humidity doesn't rise drastically, standing at 83%, making the weather bearable. Weather in June »

Weather in July

Summers in July manifest with slight cooling, with night temperatures sliding down to 22.8°C (73°F). The reduction in sunlight hours concurrent with consistent showers denotes the prevalent monsoon season. Rainfall decreases to 82mm (3.23"), signaling the imminent end of this rainy period. Weather in July »

Weather in August

August in Amasaman continues the downward trend seen in rainfall, recording 59mm (2.32"), suggesting the end of the rainy season. The decrease in rainfall is succeeded by slower wind movements and the increasing presence of the sun. Weather in August »

Weather in September

September marks the contrast between the rainy season and the one to come, recording a surprising increase in rainfall of 126mm (4.96"). The city starts to get sunnier, with people taking advantage of the lengthier periods of bright daylight. Weather in September »

Weather in October

As October commences, the rainfall decreases slightly to 125mm (4.92"), paving the way for a dryer November. Daylight hours start to decrease, although not drastically. Temperatures escalate slightly, hinting at the upcoming warm season and improved sunshine levels. Weather in October »

Weather in November

November brings about a sudden drop in rainfall to 54mm (2.13"), indicating the start of the dry season. This dramatic reduction in showers signifies the commencement of the city's sunny and less humid period. The enveloping cooler temperatures merge with the dry air to create a comfortable environment. Weather in November »

Weather in December

December in Amasaman contributes to the year-end festivities with balmy weather conditions. The city experiences the least amount of rainfall, just 22mm (0.87") throughout the year. Clear skies dominate the weather scenario, with a cloud percentage of just 20%. Weather in December »
Updated: Feb 9, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the least humid month in Amasaman?

The least humid month is January, with an average relative humidity of 70%.

What is the driest month in Amasaman?

The month with the least rainfall in Amasaman, Ghana, is January, when the rain falls for 9.8 days and typically collects 15mm (0.59") of precipitation.

How many days does it rain in Amasaman?

Throughout the year, in Amasaman, Ghana, there are 256.5 rainfall days, and 783mm (30.83") of precipitation is accumulated.

What is the month with the highest UV index in Amasaman?

January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index in Amasaman, Ghana.

What are the warmest months in Amasaman?

April, on average, is the warmest month, registering a high temperature of 33.3°C (91.9°F) and a low of 25.3°C (77.5°F).

What month has the most sunshine in Amasaman?

The month with the most sunshine in Amasaman is April, with an average of 11.2h of sunshine.

What is the rainiest month in Amasaman?

The month with the most rainfall in Amasaman is June, when the rain falls for 26 days and typically aggregates up to 127mm (5") of precipitation.

When are the longest days in Amasaman?

With an average of 12h and 24min of daylight, June has the longest days of the year in Amasaman.

When is the lowest UV index in Amasaman?

June through August, with an average maximum UV index of 6, are months with the lowest UV index.

What are the coldest months in Amasaman?

In Amasaman, the lowest temperatures are generally noted in July, averaging a high of 27.9°C (82.2°F) and a low of 22.8°C (73°F).

What is the most humid month in Amasaman?

The most humid month is September, with an average relative humidity of 86%.

What is the month with the least sunshine in Amasaman?

With an average of 6.6h of sunshine, September has the least sunshine of the year in Amasaman.

What is the month with the shortest days in Amasaman?

The month with the shortest days in Amasaman, Ghana, is December, with an average of 11h and 48min of daylight.

Is there Daylight Saving Time (DST) in Amasaman?

Amasaman, Ghana, does not utilize Daylight Saving Time (DST). GMT timezone is used throughout the entire year.

Average temperature
Amasaman, Ghana

Average temperature - Amasaman, Ghana

The warmest month (with the highest average high temperature) is April (33.3°C).
The month with the lowest average high temperature is July (27.9°C).

The month with the highest average low temperature is March (25.6°C).
The coldest month (with the lowest average low temperature) is August (22.3°C).

Average pressure
Amasaman, Ghana

Average pressure - Amasaman, Ghana

The month with the highest atmospheric pressure is July (1013.7mbar).
The months with the lowest atmospheric pressure are February and March (1009.7mbar).

Average wind speed
Amasaman, Ghana

Average wind speed - Amasaman, Ghana

The windiest month (with the highest average wind speed) is August (12.6km/h).
The calmest months (with the lowest average wind speed) are November and December (8.7km/h).

Average humidity
Amasaman, Ghana

Average humidity - Amasaman, Ghana

The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is January (70%).

Average rainfall
Amasaman, Ghana

Average rainfall - Amasaman, Ghana

The wettest month (with the highest rainfall) is June (127mm).
The driest month (with the least rainfall) is January (15mm).

Average rainfall days
Amasaman, Ghana

Average rainfall days - Amasaman, Ghana

The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is January (9.8 days).

Average daylight / Average sunshine
Amasaman, Ghana

Average daylight / Average sunshine - Amasaman, Ghana

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).

The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is September (Average sunshine: 6h and 36min).

Average sunshine days
Amasaman, Ghana

Average sunshine days - Amasaman, Ghana

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is September (1.3 days).

Average UV index
Amasaman, Ghana

Average UV index - Amasaman, Ghana

The months with the highest UV index are January, February, March, April, May, September, October, November and December (UV index 7).
The months with the lowest UV index are June, July and August (UV index 6).

Average visibility
Amasaman, Ghana

Average visibility - Amasaman, Ghana

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is September (8km).

Amasaman, Ghana

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