The highest day temperature in September 2025 was 66°F. The lowest night temperature was 34°F. The average values for day and night temperatures during September were 56.3°F и 46.2°F respectivly.

The average sea surface temperature in September 2025 for Miramar was 52.4°F. The maximum and minimum values were 51.0°F and 54.8°F respectively.

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation total in September for Miramar is 2.1 in.

The average wind speed in September is 12.4 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Miramar in September is 7.7 hours.