Climate and monthly weather forecast
Ashaiman, Ghana

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The climate of Ashaiman

Under the Köppen climate classification system, Ashaiman, Ghana, is categorized as a tropical wet and dry or savanna climate (Aw). Located in West Africa, the city's weather is hot all year round, with a mix of heavy rainfall during the monsoon season and drier periods.

Analyzing the climatological data, the annual temperature in Ashaiman ranges from 23.5°C (74.3°F) to 30.9°C (87.6°F), with the hottest months being March and April, and coolest in July. Humidity levels are high throughout the year, averaging between 73 and 85%, potentially leading to a feeling of discomfort during the hotter periods.

Rainfall patterns in Ashaiman are quite distinct. There's a significant increase in rainfall between March and June, with June receiving the highest average rainfall of 128mm (5.04"). On average, the city experiences rainfall on 22.7 days in June, the highest number in a month. Following this, the wet season gradually recedes, leading to less rainfall towards the end of the year.

In terms of sunshine, the city receives an average of 8.6 hours of sunshine per day annually. The amount of sunshine varies slightly with the seasons, reaching a peak of 11.4 hours per day in April.

The best time to visit Ashaiman

Based on the climate data, the best time to visit Ashaiman would be in the months of January and February. During this period, the city experiences temperatures around 30°C (86°F) and the relative humidity is at a comparably lower level. The mix of warm temperatures and less rainfall makes this period comfortable for various outdoor activities. The city also receives a substantial amount of sunshine, providing clear days for sightseeing.

The worst time to visit Ashaiman

The months from May to July could be considered the least favorable time to visit Ashaiman due to the high amount of rainfall accompanying the monsoon season. The city becomes very humid and can experience temperatures from 24.9°C (76.8°F) to 28.3°C (82.9°F). Low visibility could also be expected during these months, further hampering any outdoor plans.

Spring weather in Ashaiman

As a city in the tropics, Ashaiman does not experience traditional spring weather as seen in temperate regions. However, the months of March, April and May equate the season. This period is characterized by increasing humidity and rainfall, mainly from April onwards. Temperatures remain warm, ranging from 30.8°C (87.4°F) to 30.9°C (87.6°F) in the day, and 26.4°C (79.5°F) to 27.2°C (81°F) at night. Daylight averages around 12.2 hours a day, and it's when the sun shines the most in the year (about 10.8 hours a day).

Summer weather in Ashaiman

The summer months, June through August, bring heavy rainfall and high humidity, marking them as the wettest part of the year. Daytime temperatures drop slightly, ranging from 28.3°C (82.9°F) to 27°C (80.6°F), while night-time temperatures stay from 24.9°C (76.8°F) to 23.5°C (74.3°F). Despite the wet conditions, the city still enjoys an average of 8.5 hours of daylight and around 8.3 hours of sunshine per day.

Autumn weather in Ashaiman

Autumn months of September, October, and November bring about a reduction in rainfall, with average precipitation levels dropping significantly from 94mm (3.7") to 42mm (1.65"). The average day and night temperatures also see a gradual increase, ranging from 27.2°C (81°F) to 29.6°C (85.3°F) and 23.9°C (75°F) to 26°C (78.8°F), respectively. Average daylight and sunshine hours minimize slightly.

Winter weather in Ashaiman

December to February marks the driest period in Ashaiman, with rainfall levels decreasing to as low as 17mm (0.67") in December. From December through February, there's a mild increase in temperatures ranging from 28.5°C (83.3°F) to 30.4°C (86.7°F) in the day and from 24.9°C (76.8°F) to 26.4°C (79.5°F) at night. The city enjoys good sunlight with average daylight reaching about 11.9 hours per day and sunshine hours of about 9 hours per day. Despite being the driest period, the humidity level elevates, reaching around 74 to 77%.

Weather in January

In Ashaiman, the beginning of the year is characterized by weather that is typically warm, with high humidity of 73%. Winds for the month average a moderate 14km/h (8.7mph), providing some relief from the heat. The streets of Ashaiman are cautioned with moderate levels of rainfall, making January a good time to enjoy indoor activities. Weather in January »

Weather in February

February brings a slight increase in both temperature and rainfall in Ashaiman while the wind speed also increases to 16.6km/h (10.3mph). Despite the rainfall, sunshine is still prevalent with a steady increase to approximately 9.6 hours per day, favoring outdoor activities. Weather in February »

Weather in March

The weather in Ashaiman in March experiences a slight increase in temperature from February. Rainfall also sees an upward trend again, making the city a bit soggy. Concurrently, winds become stronger, reaching an average of 17.6km/h (10.9mph). Weather in March »

Weather in April

In April, Ashaiman experiences a notable surge in rainfall, reaching up to 37mm (1.46"), and hence, the city becomes significantly wetter. Notwithstanding the ascent in rain, the amount of daylight and sunshine slightly increases, presenting a balance for residents and visitors alike. Weather in April »

Weather in May

May marks the onset of nearly twice the rainfall as compared to April, leading to the likelihood of downpours at 68mm (2.68"). Yet, daylight continues to linger a little longer, making afternoons brighter. While temperatures remain in the warm range, the humidity levels almost remain the same. Weather in May »

Weather in June

June in Ashaiman sees a significant increase in rainfall, with precipitation reaching up to 128mm (5.04"). Concurrently, temperatures cool down a bit, and the wind rate experiences a slight increase. Along with increased rainfall, the relative humidity also takes an upturn, recording its highest at 81% for the year. Weather in June »

Weather in July

July brings relief from the heavy rainfall experienced in the previous month of June, with amounts dropping to 62mm (2.44"). Along with this, temperatures further drop, and a decrease in daily sunshine hours is noted. The wind speed, however, increases, providing respite from the humidity that remains high. Weather in July »

Weather in August

In Ashaiman, August experiences a slight decline in rainfall and continues the cooling trend started in July, observing the lowest high temperature of 26.3°C (79.3°F) for the year. Despite the temperature drop, residents and visitors can still enjoy the sun as the hours of sunlight slightly increase. Weather in August »

Weather in September

September marks an increase in temperatures, and rainfall also takes an upward turn, with precipitation levels reaching 94mm (3.7"). Yet, Ashaiman still enjoys a substantial amount of sunshine, despite the increase in rainfall. Weather in September »

Weather in October

The weather in October mirrors the trend started in September, with a continuing increase in both temperature and rainfall. The amount of sunshine each day mildly increases, and the wind speed drops marginally. Humidity levels start to decrease, making this time moderately comfortable. Weather in October »

Weather in November

November ushers in a decrease in rainfall, indicating the onset of the dry season in Ashaiman. Meanwhile, both the temperature and sunshine hours trend upwards, making it an incredibly vibrant and beautiful time to explore the city. Weather in November »

Weather in December

December greets Ashaiman with the continuation of the trend that began in November, signaling the full arrival of the dry season. This month experiences the least rainfall for the year at 27mm (1.06"), and temperatures remain relatively stable. Weather in December »

Frequently asked questions

What is the least humid month in Ashaiman?

The least humid month in Ashaiman, Ghana, is January, with an average relative humidity of 73%.

What is the driest month in Ashaiman?

The month with the least rainfall in Ashaiman, Ghana, is January, when the rain falls for 8.7 days and typically collects 17mm (0.67") of precipitation.

How many days does it rain in Ashaiman?

Throughout the year, there are 212 rainfall days, and 657mm (25.87") of precipitation is accumulated.

When is the highest UV index in Ashaiman?

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index.

What is the warmest month in Ashaiman?

In Ashaiman, April is the month with the highest recorded average temperatures, measuring a high of 30.9°C (87.6°F) and a low of 27.2°C (81°F).

What month has the most sunshine in Ashaiman?

With an average of 11.4h of sunshine, April has the most sunshine of the year in Ashaiman, Ghana.

What is the wettest month in Ashaiman?

The month with the most rainfall is June, when the rain falls for 22.7 days and typically aggregates up to 128mm (5.04") of precipitation.

When are the longest days in Ashaiman?

The month with the longest days is June, with an average of 12h and 24min of daylight.

What are the months with the lowest UV index in Ashaiman?

The months with the lowest UV index in Ashaiman are July and August, with an average maximum UV index of 6.

What is the coldest time of year in Ashaiman?

The coldest temperatures in Ashaiman, Ghana, occur during August, when averages reach a peak of 26.3°C (79.3°F) and a low of 23.5°C (74.3°F).

What is the most humid month in Ashaiman?

The most humid month in Ashaiman, Ghana, is September, with an average relative humidity of 85%.

What is the month with the least sunshine in Ashaiman?

The month with the least sunshine in Ashaiman is September, with an average of 7.8h of sunshine.

What is the month with the shortest days in Ashaiman?

With an average of 11h and 48min of daylight, December has the shortest days of the year in Ashaiman.

Is there Daylight Saving Time (DST) in Ashaiman?

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

Average temperature
Ashaiman, Ghana

Average temperature - Ashaiman, Ghana

The warmest month (with the highest average high temperature) is April (30.9°C).
The month with the lowest average high temperature is August (26.3°C).

The months with the highest average low temperature are March and April (27.2°C).
The coldest month (with the lowest average low temperature) is August (23.5°C).

Average pressure
Ashaiman, Ghana

Average pressure - Ashaiman, Ghana

The month with the highest atmospheric pressure is July (1013.6mbar).
The months with the lowest atmospheric pressure are February and March (1009.6mbar).

Average wind speed
Ashaiman, Ghana

Average wind speed - Ashaiman, Ghana

The windiest month (with the highest average wind speed) is August (17.9km/h).
The calmest month (with the lowest average wind speed) is December (12.8km/h).

Average humidity
Ashaiman, Ghana

Average humidity - Ashaiman, Ghana

The month with the highest relative humidity is September (85%).
The month with the lowest relative humidity is January (73%).

Average rainfall
Ashaiman, Ghana

Average rainfall - Ashaiman, Ghana

The wettest month (with the highest rainfall) is June (128mm).
The driest month (with the least rainfall) is January (17mm).

Average rainfall days
Ashaiman, Ghana

Average rainfall days - Ashaiman, Ghana

The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is January (8.7 days).

Average daylight / Average sunshine
Ashaiman, Ghana

Average daylight / Average sunshine - Ashaiman, 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 24min).
The month with the least sunshine is September (Average sunshine: 7h and 48min).

Average sunshine days
Ashaiman, Ghana

Average sunshine days - Ashaiman, Ghana

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is September (3.9 days).

Average UV index
Ashaiman, Ghana

Average UV index - Ashaiman, Ghana

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

Average visibility
Ashaiman, Ghana

Average visibility - Ashaiman, Ghana

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

Ashaiman, Ghana

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