Weather in Ghana in August: A Comprehensive Guide

Nov 07, 2025 0

Given its location just north of the equator, Ghana has an average temperature that is pleasant year-round, with its balmy tropical climate featuring two distinct seasons: wet and dry. Both have their advantages and disadvantages. This article provides a detailed overview of the weather conditions in Ghana during August, focusing on key aspects such as temperature, rainfall, humidity, and general climate patterns.

Overview of Ghana's Climate

Ghana’s climate is tropical, characterized by warm temperatures and distinct wet and dry seasons. The highest areas, such as the Ashanti Uplands, generally experience milder temperatures, while coastal areas like Accra and the Cape Coast tend to be consistently humid.

Temperature in August

August is typically the coolest month of the year. However, it's important to remember that "cool" is relative. Expect heat, with the temperature hitting about 29°C during the day, falling away to a balmy 21°C at night. Of course, the high humidity will make it feel even hotter.

Accra Temperatures in August

In Accra, daily high temperatures are around 82°F (27.8°C), rarely falling below 79°F (26.1°C) or exceeding 85°F (29.4°C). The lowest daily average high temperature is 81°F (27.2°C) on August 5. Daily low temperatures are around 75°F (23.9°C), rarely falling below 73°F (22.8°C) or exceeding 76°F (24.4°C). The lowest daily average low temperature is 74°F (23.3°C) on August 9.

For reference, on February 25, the hottest day of the year, temperatures in Accra typically range from 79°F to 91°F, while on August 7, the coldest day of the year, they range from 74°F to 81°F.

Tamale Temperatures in August

In Tamale, daily high temperatures are around 86°F, rarely falling below 82°F or exceeding 89°F. The lowest daily average high temperature is 85°F on August 14. Daily low temperatures are around 73°F, rarely falling below 72°F or exceeding 75°F.

For reference, on March 5, the hottest day of the year, temperatures in Tamale typically range from 77°F to 99°F, while on December 30, the coldest day of the year, they range from 67°F to 94°F.

Rainfall and Cloud Cover

August falls within Ghana’s rainy season, though the intensity and frequency of rainfall can vary.

Accra Rainfall and Cloud Cover in August

In Accra, the chance of a wet day over the course of August is very rapidly increasing, starting the month at 18% and ending it at 29%. The average sliding 31-day rainfall during August in Accra is gradually increasing, starting the month at 1.4 inches, when it rarely exceeds 3.2 inches or falls below 0.2 inches, and ending the month at 1.7 inches, when it rarely exceeds 3.8 inches or falls below 0.2 inches. The lowest average 31-day accumulation is 1.1 inches on August 12.

The month of August in Accra experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 55% throughout the month. The clearest day of the month is August 5, with clear, mostly clear, or partly cloudy conditions 45% of the time.

Tamale Rainfall and Cloud Cover in August

In Tamale, the chance of a wet day over the course of August is very rapidly increasing, starting the month at 68% and ending it at 83%. The average sliding 31-day rainfall during August in Tamale is rapidly increasing, starting the month at 5.1 inches, when it rarely exceeds 7.9 inches or falls below 2.6 inches, and ending the month at 6.6 inches, when it rarely exceeds 10.1 inches or falls below 3.6 inches.

The month of August in Tamale experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 70% throughout the month. The highest chance of overcast or mostly cloudy conditions is 72% on August 25. The clearest day of the month is August 1, with clear, mostly clear, or partly cloudy conditions 31% of the time.

Humidity and Wind

High humidity is a consistent factor in Ghana, particularly in coastal regions.

Accra Humidity and Wind in August

The chance that a given day will be muggy in Accra is essentially constant during August, remaining around 100% throughout. The average hourly wind speed in Accra is essentially constant during August, remaining within 0.1 miles per hour of 8.3 miles per hour throughout. The hourly average wind direction in Accra throughout August is predominantly from the south, with a peak proportion of 72% on August 14.

Tamale Humidity and Wind in August

The chance that a given day will be muggy in Tamale is essentially constant during August, remaining around 100% throughout. The average hourly wind speed in Tamale is decreasing during August, decreasing from 6.3 miles per hour to 5.3 miles per hour over the course of the month. The hourly average wind direction in Tamale throughout August is predominantly from the south, with a peak proportion of 55% on August 1.

Read also: Weather Guide: Zambia in July

Daylight and Solar Activity

The length of the day in Ghana during August remains relatively constant.

Accra Daylight and Solar Activity in August

Over the course of August in Accra, the length of the day is essentially constant. The shortest day of the month is August 31, with 12 hours, 13 minutes of daylight and the longest day is August 1, with 12 hours, 21 minutes of daylight. The average daily incident shortwave solar energy in Accra is essentially constant during August, remaining within 0.1 kWh of 5.5 kWh throughout. The highest average daily incident shortwave solar energy during August is 5.5 kWh on August 23.

Tamale Daylight and Solar Activity in August

Over the course of August in Tamale, the length of the day is essentially constant. The shortest day of the month is August 31, with 12 hours, 18 minutes of daylight and the longest day is August 1, with 12 hours, 32 minutes of daylight. The average daily incident shortwave solar energy in Tamale is essentially constant during August, remaining around 4.8 kWh throughout. The lowest average daily incident shortwave solar energy during August is 4.7 kWh on August 28.

Sea Temperature

For those planning coastal visits, the sea temperature in Accra remains consistent throughout August.

Accra Sea Temperature in August

The average surface water temperature in Accra is essentially constant during August, remaining around 74°F (23.3°C) throughout. The lowest average surface water temperature during August is 74°F (23.3°C) on August 12.

Tips for Visiting Ghana in August

Given the weather conditions in August, consider the following tips when planning your visit:

Pack Light Clothing: Lightweight, easy-drying clothes are essential due to the humidity and potential for rain.
Stay Hydrated: Drink plenty of water to combat the effects of the heat and humidity.
Use Sunscreen: Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy.
Plan for Rain: Be prepared for rain, especially in the north, where flooding can be a risk.
Limit Exposure: Try to limit exposure between 10am and 4pm.

Average Temperatures and Precipitation in Accra

Here's a table summarizing the average temperatures and precipitation in Accra throughout the year:

Month	Min (°C)	Max (°C)	Mean (°C)	Rain (mm)	Days
January	24.8	32.4	28.6	10	1
February	25.6	32.6	29.1	15	1
March	25.6	33	29.3	55	4
April	25.5	32.5	29	85	5
May	24.9	31.8	28.3	150	8
June	24.1	29.8	27	175	10
July	23.6	28.5	26.1	65	5
August	23.1	28.2	25.7	20	4
September	23.7	29.6	26.7	45	5
October	24	30.8	27.4	65	6
November	24.7	31.9	28.3	30	3
December	25	32.3	28.6	25	1
Year	24.6	31.1	27.75	740	53