The highest day temperature in September 2025 was 70°F. The lowest night temperature was 58°F. The average values for day and night temperatures during September were 67.8°F и 60.7°F respectivly.

The average sea surface temperature in September 2025 for Lima was 61.9°F. The maximum and minimum values were 61.2°F and 63.0°F respectively.

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

Precipitation total in September for Lima is 0.0 in. This value is relatively stable throughout the year.

The average wind speed in September is 8.2 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 Lima in September is 9.8 hours.