The highest day temperature in July 2025 was 106°F. The lowest night temperature was 75°F. The average values for day and night temperatures during July were 96.2°F и 81.1°F respectivly.

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

Precipitation total in July for Piedras Negras is 0.4 in.

The average wind speed in July is 11.5 mph. It makes July one of the most windy months of the year for Piedras Negras.

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 Piedras Negras in July is 10.1 hours.