Ghana doesn't experience a vast array of seasons, and has a tropical climate typified by wet summers and dry winters. The rainy season arrives in March in the central regions of Ghana, and begins one month later in the north. Wet weather continues until October or November.
Temperatures and humidity are generally high all year round, particularly in the coastal regions. The coolest time of year is from June to September, but even then temperatures tend to hover around 83°F (28°C).
The hottest months are between late November and mid-March when the dry and dusty harmattan winds blow in from the Sahara in the northeast. The harmattan lowers humidity drastically and creates hot days and cool nights. Daytime temperatures reach 95°F (35°C) and higher.