Piedras Negras Weather by Month

Average temperatures, rainfall and humidity for Piedras Negras, Mexico, month by month, built from OpenWeather’s historical records. Use it to see what a typical Piedras Negras month looks like before you travel — then check the live Piedras Negras forecast for the days ahead.

Warmest month

August

38°C average high

Coolest month

January

5°C average low

Wettest month

May

56 mm of rain

Driest month

February

10 mm of rain

Average temperature and rainfall in Piedras Negras by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

Month	Avg high	Avg low	Record low / high	Rainfall	Humidity	Wind
January	20°C	5°C	-10°C / 33°C	11 mm	60%	12 km/h
February	24°C	9°C	-10°C / 37°C	10 mm	60%	13 km/h
March	28°C	13°C	-2°C / 38°C	19 mm	58%	15 km/h
April	31°C	17°C	4°C / 40°C	28 mm	60%	16 km/h
May	34°C	21°C	8°C / 43°C	56 mm	65%	16 km/h
June	36°C	24°C	15°C / 44°C	26 mm	61%	16 km/h
July	37°C	25°C	15°C / 43°C	20 mm	57%	16 km/h
August	38°C	25°C	18°C / 43°C	22 mm	56%	15 km/h
September	34°C	22°C	13°C / 41°C	54 mm	65%	13 km/h
October	30°C	17°C	2°C / 38°C	20 mm	63%	14 km/h
November	24°C	12°C	-5°C / 33°C	19 mm	67%	12 km/h
December	21°C	8°C	-7°C / 35°C	12 mm	66%	11 km/h

Best time to visit Piedras Negras

The most comfortable time to visit Piedras Negras is generally February and November to December, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around May, totalling about 297 mm a year.

Travellers who prefer heat should aim for August, when highs average 38°C. May is the month to avoid if rain would spoil your plans — it averages 56 mm, roughly 6× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Piedras Negras forecast for what is happening now.