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The weather in Piedras Negras in August is very hot. The average temperatures are between 26°C and 37°C, drinking water regularly is advisable.
You can expect a few rainy days in Piedras Negras during August, but usually the weather is comfortable in August.
Our weather forecast can give you a great sense of what weather to expect in Piedras Negras in August 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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 18° / 9° | 1 | 29 | 0 | 19 mm | Good | Piedras Negras in January |
| February | 21° / 10° | 1 | 27 | 0 | 20 mm | Good | Piedras Negras in February |
| March | 26° / 14° | 2 | 29 | 0 | 26 mm | Perfect | Piedras Negras in March |
| April | 30° / 18° | 3 | 27 | 0 | 43 mm | Good | Piedras Negras in April |
| May | 33° / 22° | 5 | 26 | 0 | 95 mm | Good | Piedras Negras in May |
| June | 36° / 25° | 3 | 27 | 0 | 82 mm | Ok | Piedras Negras in June |
| July | 37° / 26° | 3 | 28 | 0 | 63 mm | Ok | Piedras Negras in July |
| August | 37° / 26° | 2 | 29 | 0 | 50 mm | Ok | Piedras Negras in August |
| September | 33° / 24° | 5 | 25 | 0 | 124 mm | Good | Piedras Negras in September |
| October | 29° / 19° | 2 | 29 | 0 | 60 mm | Good | Piedras Negras in October |
| November | 23° / 13° | 2 | 28 | 0 | 25 mm | Perfect | Piedras Negras in November |
| December | 19° / 10° | 1 | 29 | 0 | 23 mm | Good | Piedras Negras in December |