St. Martin has a well-earned reputation for having a temperate climate and wonderful scenery. In the month of September, the temperature doesn't change much during the course of a typical day.

Temperatures will peak at about degrees falling to degrees during the middle of the night.

As indicated above, during the early part of the month the low temperature averages degrees while the average daily high is degrees. If you visit during the middle of the month the low temperature will typically average degrees and the high is about degrees on average. Over the last part of September the low averages degrees and the high temperature averages degrees. For a more detailed understanding of temperatures in St. Martin during September, browse the above table.