Climate and monthly weather forecast
Guyana

Nestled on the northern coast of South America, Guyana possesses a geographical landscape featuring fertile plains, highlands, and dense rainforests. The climate throughout the country is classified as a Tropical Monsoon, under the Köppen climate classification, and remains consistently warm year-round. This classification signifies a monthly mean temperature above 18°C (64.4°F) in every month, regardless of the season. Guyana experiences wet and dry seasons, similar to Tropical Savanna climates, yet the driest month sees less than 60mm (2.36") of precipitation, and temperatures exhibit less fluctuation over the year. Rainfall is most prevalent from May to August and November to January, while the country enjoys its driest periods from February to April and September to October.

The ideal period for visiting Guyana spans from February to April, as well as September to October. During these months, the country enjoys its driest weather, creating optimal conditions for exploring the stunning natural landscapes, including the vibrant Amazonian rainforests and the impressive Kaieteur Falls. The temperatures during these periods remain pleasant and warm, typically ranging between 24°C (75.2°F) and 31°C (87.8°F), providing comfortable conditions for outdoor exploration.

The least favorable times to visit Guyana typically coincide with its rainy seasons, which run from May to August and November to January. During these periods, heavy rains may hinder outdoor activities and can sometimes result in localized flooding, particularly in coastal areas. The precipitation during these months can reach as high as 350mm (13.78") per month, and temperatures can range between 22°C (71.6°F) and 28°C (82.4°F).

Given its proximity to the equator, Guyana does not experience traditional spring weather like countries in temperate regions. Instead, March and April typically mark the end of a dry period and the beginning of a wet season. In this period, temperatures maintain a warm range from 24°C (75.2°F) to 31°C (87.8°F), and while early March may be relatively dry, rainfall increases significantly towards the end of April.

The months of June, July, and August in Guyana are characterized by significant rainfall and consistent warm temperatures. This period is part of the major rainy season, with precipitation levels reaching up to 350mm (13.78") per month. Concurrently, the temperatures remain uniformly warm, fluctuating between 22°C (71.6°F) and 28°C (82.4°F), making the climate humid and damp.

Just as with spring, traditional autumn weather is not a feature of Guyana's tropical monsoon climate. September and October are among the driest months of the year, marking a pause between the two rainy seasons. During this period, temperatures typically stay between 24°C (75.2°F) and 31°C (87.8°F). With less rainfall, these months provide favorable conditions for tourism and outdoor activities.

Winter, as it is known in temperate climates, does not apply to Guyana due to its tropical location. However, the months of December and January fall within one of the country's rainy seasons. Rainfall increases significantly during these months, potentially reaching up to 250mm (9.84"). The temperature remains consistently warm, ranging from 22°C (71.6°F) to 28°C (82.4°F), despite the increased precipitation.

January in Guyana marks the onset of the second rainy season of the year, following a relatively dry period in December. Precipitation levels begin to escalate, contributing to a monthly total that can reach up to 250mm (9.84"). Weather in January »

February signifies a notable transition in Guyana's weather pattern. As the country moves from the rainy season of January, February generally experiences a decline in precipitation, indicating the beginning of a dry spell. Weather in February »

March in Guyana is characterized by the continuation of the dry period that started in February. During this month, precipitation remains relatively low, often less than 100mm (3.94"), providing favourable conditions for outdoor pursuits and exploration of the country's vibrant ecosystems. Cities such as Georgetown and Linden experience similar weather conditions, with reduced rainfall and warm temperatures that offer a respite from the more intense rainy seasons. Weather in March »

April in Guyana represents a transitional phase in the country's weather pattern. The month starts within the dry season but ends with the beginning signs of the major rainy season. Rainfall levels start to climb in comparison to the preceding months, reaching up to 150mm (5.91") by the end of April. Weather in April »

May in Guyana heralds the arrival of the major rainy season, a significant shift from the drier conditions experienced in the earlier months of the year. The rainfall during May escalates dramatically, with total precipitation often exceeding 300mm (11.81"). Weather in May »

June in Guyana continues the trend set by May, with high levels of rainfall defining the month's weather conditions. As part of the major rainy season, June often sees precipitation levels similar to, or even exceeding those of May, frequently surpassing 300mm (11.81"). Weather in June »

July in Guyana continues the trend set by the preceding months of May and June, characterised by persistent and substantial rainfall. As part of the country's major rainy season, July's weather sees precipitation levels often exceeding 300mm (11.81"). Weather in July »

August in Guyana is the final month of the major rainy season. As with the preceding months of this period, August is characterized by high levels of rainfall, often exceeding 250mm (9.84"). Regular showers continue to define the weather throughout the month, maintaining the consistently damp environment typical of this time of year. Major cities such as Georgetown and New Amsterdam, as well as smaller towns like Linden, continue to experience these substantial downpours. Weather in August »

September in Guyana signifies a major shift in the weather pattern as the country transitions from the major rainy season to a drier period. The rainfall levels decrease significantly from the preceding months, often dropping to less than 200mm (7.87"). Weather in September »

October in Guyana is part of the dry season, but it also signals the gradual approach of the minor rainy season. The month starts off relatively dry, with precipitation levels lower than the major rainy season, often less than 200mm (7.87"). Weather in October »

November in Guyana marks the commencement of the minor rainy season, a shift from the preceding drier months. Rainfall levels rise significantly in November, often exceeding 200mm (7.87"), heralding the return of regular showers and a more humid environment. Weather in November »

December in Guyana sees the continuation of the minor rainy season that began in November, but with a gradual decrease in rainfall as the month progresses. The beginning of December often experiences precipitation levels similar to those of November, exceeding 200mm (7.87"). Weather in December »