In terms of precipitation, rainfall in Timaru ranges from 1.2 - 2.8 inches per month. December is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit Timaru when rainfall is around 1.2 in.
If weather is an important factor for your trip to Timaru, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 59.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 41.0 F).