Northern Guyana is currently transitioning into the secondary wet season and the output from the Seasonal Climate Outlook model for November 2017 to January 2018 suggests higher chances, 85-90% of above-average rainfall across Guyana (average for northern Guyana is 600mm and 130 mm for southern Guyana).
According to a press release yesterday from the Ministry of Agriculture (MoA), the Hydromet Office forecasts that the secondary wet season will begin during the second half of November, and based on historical records it is expected to conclude by mid-February 2018, while southern Guyana’s dry season is expected to continue until mid-April 2018.
Cooler than average sea-surface temperatures of approximately 0.5 degree C have been recorded in the eastern Equatorial Pacific, according to the MoA release. Model consensus is that these conditions will continue well into January, 2018. In addition, the atmospheric conditions over the eastern Equatorial Pacific are consistent with cold neutral to borderline weak La Nina conditions. The La Nina phase of the El Nino Southern Oscillation usually results in an increase in precipitation in Guyana.
