The highest day temperature in September 2025 was 106°F. The lowest night temperature was 80°F. The average values for day and night temperatures during September were 95.3°F и 83.1°F respectivly.

The average sea surface temperature in September 2025 for La Paz was 90.2°F. The maximum and minimum values were 89.2°F and 91.4°F respectively.

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

Precipitation total in September for La Paz is 0.5 in. It makes september the most rainy month of the year.

The average wind speed in September is 7.2 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 La Paz in September is 9.6 hours.