Guyana
Weather locations in Guyana
Choose a location in Guyana to view its available forecast products.
Guyana illustrated weather map
5 mapped locations
Only locations with a verified coordinate are marked. The complete location list is below.
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Climate of Guyana
Country climate guideGuyana sits at the head of the South American continent, between the Orinoco delta to the west and the Amazon mouth to the east, and lies almost entirely between 1°N and 8°N, so close to the equator that daily temperature barely varies. It is inside the Amazon basin and the Guiana Highlands, and the only lowland is a narrow strip of fertile, drowned river plain along the Atlantic, where most of the population lives. The country is almost entirely forested.
Main climate types
Almost the whole country is tropical rainforest climate under the Köppen scheme, with rain in every month and no cold season. The south, toward the Rupununi savanna and the Brazilian border, grades into tropical savanna with a marked dry season. On the coastal plain a narrow belt of swamp and sediment behaves the same way, but the heavy rains saturate the ground for weeks on end.
Temperatures
Because it is equatorial, the annual range is only a degree or two. Georgetown averages about 26 °C in January and about 27 °C in July, with highs near 30 °C and lows around 22 °C. There is no summer or winter, just a steady warm regime broken by occasional cool spells in December and January, when northerly winds drop the temperature a couple of degrees. Further south at Lethem the rhythm is similar, with clearer nights.
Rainfall
Guyana is one of the wettest countries in South America. Georgetown receives about 2,400 mm to 2,800 mm a year, but distribution is uneven: a long wet season from December to February, a second one from late April to August, and two drier intervals, roughly February to April and September to November. The interior and the Kaieteur plateau take well over 3,000 mm, while the Rupununi savanna gets 1,000 mm to 1,500 mm and seven or eight dry months.
When to go
The dry seasons are the best time to travel, roughly February to April and September to November, when roads are passable and the interior rivers are lower. The wettest months, May to August and December to February, bring heavy daily rain.