Climate averages 1991–2020
Piedras Negras weather
in October.
A hot, moderately wet month: the 7th warmest and the 10th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Piedras Negras: daytime highs average 28.7°C and nights cool to about 18.5°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 60 mm of rain on roughly 7 days, which makes October a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 30 min on an average October day.
The nearest other city in this atlas is Ciudad Acuña (81 km away). In October its highs average 28.1°C, 0.6°C cooler than Piedras Negras, with 55 mm of rain.
Among the 153 cities listed in Mexico, Piedras Negras ranks joint 36th of 153 for the warmest October highs and joint 70th of 153 for the driest October (rainfall, lowest first). The mean October high of those 153 cities is 25.7°C; Piedras Negras is 3.0°C warmer than that mean.
From October to November, average highs fall by 5.8°C to 22.9°C, and monthly rainfall falls from 60 mm to 36 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Piedras Negras climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.0°C7.9°C | 7.9°C | 25 | 4.3 | 10.511 h |
| February | 21.9°C10.2°C | 10.2°C | 27 | 4.5 | 11.211 h |
| March | 25.7°C13.9°C | 13.9°C | 43 | 5.6 | 12.012 h |
| April | 29.9°C17.8°C | 17.8°C | 48 | 6.1 | 12.813 h |
| May | 32.9°C21.8°C | 21.8°C | 74 | 8.3 | 13.614 h |
| June | 35.9°C25.0°C | 25.0°C | 46 | 6.1 | 13.914 h |
| July | 36.6°C25.8°C | 25.8°C | 50 | 5.9 | 13.814 h |
| August | 36.8°C26.4°C | 26.4°C | 46 | 4.6 | 13.213 h |
| September | 32.8°C23.2°C | 23.2°C | 79 | 8.3 | 12.412 h |
| October, selected | 28.7°C18.5°C | 18.5°C | 60 | 6.5 | 11.511 h |
| November | 22.9°C12.9°C | 12.9°C | 36 | 4.8 | 10.711 h |
| December | 19.1°C8.5°C | 8.5°C | 27 | 4.5 | 10.410 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Ciudad Acuña in OctoberMexico · 81 kmHigh 28.1°C · Low 17.9°C · 55 mm rain
- Nuevo Laredo in OctoberMexico · 168 kmHigh 30.0°C · Low 19.8°C · 44 mm rain
- San Antonio in OctoberUnited States · 213 kmHigh 27.3°C · Low 17.3°C · 83 mm rain
- Monclova in OctoberMexico · 218 kmHigh 27.4°C · Low 17.1°C · 32 mm rain
- New Braunfels in OctoberUnited States · 258 kmHigh 26.9°C · Low 17.0°C · 81 mm rain
- San Angelo in OctoberUnited States · 307 kmHigh 25.8°C · Low 14.6°C · 60 mm rain
- Austin in OctoberUnited States · 321 kmHigh 26.7°C · Low 16.6°C · 85 mm rain
- Corpus Christi in OctoberUnited States · 322 kmHigh 27.7°C · Low 20.0°C · 82 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Piedras Negras) is explained once on the Piedras Negras year overview and on the Sources, method and limits page.