The weather in Piedras Negras in July is very hot. The average temperatures are between 26°C and 37°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Piedras Negras during the month of July. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Piedras Negras in July 2026.
If you’re planning to visit Piedras Negras in the near future, we highly recommend that you review the 14 day weather forecast for Piedras Negras before you arrive.
Temperatures
37° / 26°
Rainy Days
3
Snowy Days
0
Dry Days
28
Rainfall
63
mm
Sun Hours
9.8
Hrs
