Climate in Piedras Negras, Mexico

Piedras Negras, Mexico has a semi-arid climate. The annual average temperature is about 23°C and the city receives roughly 702 mm of precipitation across 78 rainy days a year, with around 2497 hours of sunshine. The warmest month is Jul (highs near 35.5°C) and the coldest is Jan (lows near 10.4°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Piedras Negras is classified as Semi-Arid. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Piedras Negras receives about 702 mm of precipitation a year over roughly 78 rainy days. The wettest month is May and the driest is Jan.

Piedras Negras sees an estimated 2497 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Piedras Negras are Feb, Jan, Dec. Conditions vary year to year — verify with a current forecast before booking.

Piedras Negras has a climate comfort score of 77/100, a very comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.