What is a rainy season?
A country's rainy season (also known as a wet season) is the time of the year where the majority of a country or region's annual precipitation occurs. The term 'rainy season' can mean different things depending what part of the world you're in. For example the rainy season in India is controlled by the Monsoon, making for persistent heavy rains. Whereas the rainy season in Cuba is related to the occurrence of heavy evening thunderstorms and infrequent but intense tropical cyclones (hurricanes).
Countries and regions with a monsoon rainy season
A monsoon is a reversal of the mean wind direction and with it come changes to the climate of a region. The onset and strength of monsoons is hard to predict, but once they start the altered winds can remain in place for months. Monsoons can often bring significant rainfall increases, however this is dependent on the geography of the particular place. The rain associated with monsoons can differ depending on where you are, but precipitation can sometimes last for days without stopping.
Countries and regions with a savannah rainy season
Large expanses of rolling grasslands known as savannas generate their own climate, bringing hot weather all year round. There are distinct dry seasons where no rain will fall at all for months, and short wet seasons bringing heavy rains most afternoons, with hot, humid conditions throughout the rest of the day.
|Ghana||April - October|
|Eritrea||July - August|
|Ethiopia||June - September|
|Botswana||December - March|
|Florida (USA)||May - October|
|Nigeria||April - October|
Countries and regions with a tropical rainy season
Usually countries located close to the equator with tropical climates have only two seasons; the dry season and the wet season. During the wet season, just like in savannahs, there is typically heat build up over the course of the day allowing thunderstorms to grow and eventually rain out in the afternoon and continuing overnight. The magnitude of rainfall can vary from day to day but it can be expected at roughly the same time. It's best not to be caught in such conditions as lightning can be violent and rainfall significant.