...and more
In terms of precipitation, rainfall in Tortola ranges from 1.9 - 5.8 inches per month. October is typically the wettest month, when rainfall can reach 5.8 in. February is typically the driest time to visit Tortola when rainfall is around 1.9 in.
If weather is an important factor for your trip to Tortola, use this chart to help with planning. For those seeking warmer temperatures, August 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 February, when temperatures are typically at their lowest (around 75.2 F).