If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Westvale Park: The hottest months are usually September and October, with an average temperature of 27°C, while the coldest months are January and February, with an average of 26°C. The rainiest months in Westvale Park are October, November, August and July, with each month seeing an average of 209 mm of rainfall.