December weather forecast
Guyana

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"). However, by the end of the month, these levels taper off, indicating the close of the minor rainy season and the transition to drier weather.

Major cities like Georgetown, New Amsterdam, and Linden, along with smaller communities, experience this decline in rainfall. Despite the lessening precipitation, December's climate remains characteristically warm, in line with Guyana's tropical monsoon weather. Average temperatures in December range from 23°C (73.4°F) to 30°C (86°F), sustaining a comfortable warmth that is consistent throughout the year.

As December transitions into January, the decrease in rainfall becomes more pronounced, heralding the onset of a dry period that marks the start of the new year. Thus, while December is part of the minor rainy season, it also represents a transitional phase leading to the drier months of the upcoming year. Consequently, the weather pattern in December offers a blend of the wet conditions of the minor rainy season and the drier conditions that characterize the beginning of the new year.

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• Georgetown - December »
  The month with the shortest days in Georgetown is December, with an average of 11h and 42min of daylight. In Georgetown in December, the average water temperature is 27.8°C (82°F).
• New Amsterdam - December »
  In New Amsterdam in December, during 27.4 rainfall days, 208mm (8.19") of precipitation is typically accumulated. As New Amsterdam, Guyana, welcomes December, the concluding month of the year, a multifaceted weather system unfolds.
• Skeldon - December »
  With an average of 11h and 48min of daylight, December has the shortest days of the year in Skeldon, Guyana. With an average of 11h and 48min of daylight, December has the shortest days of the year in Skeldon.
• Rosignol - December »
  December has the shortest days of the year in Rosignol with an average of 11h and 48min of daylight. On the first day of December in Rosignol sunrise is at 05:45 and sunset at 17:32.
• Mahaicony - December »
  The month with the shortest days in Mahaicony is December, with an average of 11h and 48min of daylight. The months with the lowest UV index in Mahaicony are January, February, May, June and December, with an average maximum UV index of 6.
• Parika - December »
  With an average of 11h and 42min of daylight, December has the shortest days of the year in Parika, Guyana. In Parika, during December, the rain falls for 29.1 days and regularly aggregates up to 138mm (5.43") of precipitation.
• Lethem - December »
  In Lethem, the months of January through April, September through December register the highest average temperatures, peaking at 33°C (91.4°F). January through December, with an average maximum UV index of 12, are months with the highest UV index in Lethem.