In terms of precipitation, rainfall in Thiruvananthapuram ranges from 0.9 - 13.5 inches per month. June is typically the wettest month, when rainfall can reach 13.5 in. January is typically the driest time to visit Thiruvananthapuram when rainfall is around 0.9 in.
If weather is an important factor for your trip to Thiruvananthapuram, 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 84.2 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 78.8 F).