Although weather is just one factor, it can really affect your travel plans, especially if you're planning an extended stay in Saratoga. The hottest months are usually July and August, with an average temperature of 27°C, while the coldest months are January and February, with an average of 8°C. The rainiest months in Saratoga are April, May, March and December, with each month seeing an average of 189 mm of rainfall.