Weather is probably a major factor when you plan your trip to Red River, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually December and November, with an average temperature of 24°C, while the coldest months are August and July, with an average of 19°C. The rainiest months in Red River are January, February, March and December, with each month seeing an average of 231 mm of rainfall.