Climate averages 1991–2020
Agua Prieta weather
in September.
A hot, fairly dry month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Agua Prieta: daytime highs average 30.8°C and nights cool to about 18.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 30 mm of rain on roughly 5 days, which makes September a fairly dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average September day.
The nearest other city in this atlas is Nogales (133 km away). In September its highs average 30.2°C, 0.7°C cooler than Agua Prieta, with 49 mm of rain.
Among the 153 cities listed in Mexico, Agua Prieta ranks 23rd of 153 for the warmest September highs and 6th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Agua Prieta is 4.3°C warmer than that mean.
From September to October, average highs fall by 4.2°C to 26.7°C, and monthly rainfall falls from 30 mm to 18 mm.
The annual picture
September 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
Agua Prieta climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 16.3°C2.3°C | 2.3°C | 27 | 3.5 | 10.410 h |
| February | 18.1°C3.7°C | 3.7°C | 24 | 3.7 | 11.111 h |
| March | 21.8°C6.5°C | 6.5°C | 15 | 3.0 | 12.012 h |
| April | 25.9°C10.0°C | 10.0°C | 4.8 | 1.3 | 12.913 h |
| May | 30.5°C14.9°C | 14.9°C | 4.9 | 1.2 | 13.714 h |
| June | 35.1°C20.0°C | 20.0°C | 9.3 | 2.1 | 14.114 h |
| July | 33.8°C21.5°C | 21.5°C | 50 | 10.3 | 14.014 h |
| August | 32.7°C20.6°C | 20.6°C | 46 | 10.9 | 13.313 h |
| September, selected | 30.8°C18.3°C | 18.3°C | 30 | 5.1 | 12.412 h |
| October | 26.7°C12.9°C | 12.9°C | 18 | 3.2 | 11.411 h |
| November | 20.7°C6.8°C | 6.8°C | 21 | 2.4 | 10.611 h |
| December | 15.8°C2.5°C | 2.5°C | 29 | 4.5 | 10.210 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
September in nearby cities
- Nogales in SeptemberMexico · 133 kmHigh 30.2°C · Low 17.3°C · 49 mm rain
- Tucson in SeptemberUnited States · 165 kmHigh 34.1°C · Low 21.3°C · 25 mm rain
- San Tan Valley in SeptemberUnited States · 279 kmHigh 35.9°C · Low 22.7°C · 26 mm rain
- Las Cruces in SeptemberUnited States · 283 kmHigh 30.9°C · Low 18.0°C · 29 mm rain
- Hermosillo in SeptemberMexico · 284 kmHigh 36.0°C · Low 24.5°C · 52 mm rain
- El Paso in SeptemberUnited States · 294 kmHigh 30.7°C · Low 18.3°C · 31 mm rain
- Ciudad Juárez in SeptemberMexico · 295 kmHigh 30.7°C · Low 18.4°C · 31 mm rain
- Chandler in SeptemberUnited States · 309 kmHigh 37.0°C · Low 23.1°C · 25 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 Agua Prieta) is explained once on the Agua Prieta year overview and on the Sources, method and limits page.