Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Willemstad to Georgetown, Demerara-Mahaica as you normally would.
In terms of precipitation, rainfall in Georgetown, Demerara-Mahaica ranges from 3.1 - 12.6 inches per month. June is typically the wettest month, when rainfall can reach 12.6 in. September is typically the driest time to visit Georgetown, Demerara-Mahaica when rainfall is around 3.1 in.
If weather is an important factor for your trip to Georgetown, Demerara-Mahaica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).