In terms of precipitation, rainfall in Tobago ranges from 1.7 - 8.7 inches per month. October is typically the wettest month, when rainfall can reach 8.7 in. March is typically the driest time to visit Tobago when rainfall is around 1.7 in.
If weather is an important factor for your trip to Tobago, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).