In terms of precipitation, rainfall in West Kalimantan ranges from 6.7 - 15.0 inches per month. November is typically the wettest month, when rainfall can reach 15.0 in. July is typically the driest time to visit West Kalimantan when rainfall is around 6.7 in.
If weather is an important factor for your trip to West Kalimantan, use this chart to help with planning. For those seeking warmer temperatures, February 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).