September weather forecast
Guyana

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"). This reduction in precipitation marks the beginning of a dry spell that provides a respite from the intense downpours typical of the rainy season.

Cities such as Georgetown, New Amsterdam, and Linden experience this decrease in rainfall, providing a window of dry weather that encourages outdoor activities and exploration. Despite the seasonal shift, September maintains the consistently warm temperatures characteristic of Guyana's tropical monsoon climate. Average temperatures hover between 23°C (73.4°F) to 30°C (86°F), continuing the steady warmth experienced throughout the year.

As September transitions into October, the weather conditions generally remain similar. Both September and October form part of the dry season, with relatively low precipitation and consistently warm temperatures. However, as October progresses, the country gradually approaches the onset of its minor rainy season. Consequently, while September offers a drier spell, it also serves as a precursor to the wetter conditions of the upcoming months.

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• Georgetown - September »
  The months of September and October see the peak of Georgetown's temperatures, averaging a high of 30.8°C (87.4°F). In Georgetown in September, during 9 rainfall days, 98mm (3.86") of precipitation is typically accumulated.
• New Amsterdam - September »
  The least humid month in New Amsterdam is September, with an average relative humidity of 76%. With average high and low temperatures of 30.8°C (87.4°F) and 25.9°C (78.6°F) respectively, September is New Amsterdam's warmest month.
• Skeldon - September »
  August and September, with an average sea temperature of 28.3°C (82.9°F), are months with the warmest seawater in Skeldon, Guyana. August and September, with an average sea temperature of 28.3°C (82.9°F), are months with the warmest seawater in Skeldon, Guyana.
• Rosignol - September »
  Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable. When is the sunrise / sunset in September in Rosignol?
• Mahaicony - September »
  The month with the least rainfall in Mahaicony, Guyana, is September, when the rain falls for 21 days and typically collects 55mm (2.17") of precipitation. The months with the lowest humidity in Mahaicony are September and October, with an average relative humidity of 78%.
• Parika - September »
  September in Parika signifies the start of a shift towards cooler temperatures, bringing relief after the peak heat of August. The months with the lowest humidity in Parika are September and October, with an average relative humidity of 78%.
• Lethem - September »
  January through April, September through December mark Lethem's peak of temperatures, averaging a high-temperature of 33°C (91.4°F). During January through April, September through December, Lethem experiences its peak temperatures, averaging a high-temperature of 33°C (91.4°F).