Climate averages 1991–2020
Cuautitlán Izcalli weather
in September.
A mild, wet month: the 8th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Cuautitlán Izcalli: daytime highs average 20.2°C and nights cool to about 11.5°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 125 mm of rain on roughly 18 days, which makes September a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average September day.
The nearest other city in this atlas is Cuautitlán (5 km away). In September its highs average 20.5°C, about as warm as Cuautitlán Izcalli, with 125 mm of rain.
Among the 153 cities listed in Mexico, Cuautitlán Izcalli ranks joint 145th of 153 for the warmest September highs and joint 65th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Cuautitlán Izcalli is 6.4°C cooler than that mean.
From September to October, average highs fall by 0.4°C to 19.7°C, and monthly rainfall falls from 125 mm to 66 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
Cuautitlán Izcalli climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.5°C5.2°C | 5.2°C | 17 | 3.4 | 11.111 h |
| February | 21.6°C6.1°C | 6.1°C | 16 | 3.4 | 11.511 h |
| March | 23.6°C7.4°C | 7.4°C | 21 | 5.0 | 12.012 h |
| April | 24.8°C9.3°C | 9.3°C | 38 | 7.1 | 12.613 h |
| May | 24.5°C10.7°C | 10.7°C | 54 | 10.0 | 13.113 h |
| June | 22.7°C12.0°C | 12.0°C | 114 | 15.1 | 13.313 h |
| July | 21.1°C11.6°C | 11.6°C | 104 | 17.3 | 13.213 h |
| August | 21.2°C11.8°C | 11.8°C | 107 | 17.0 | 12.813 h |
| September, selected | 20.2°C11.5°C | 11.5°C | 125 | 17.6 | 12.312 h |
| October | 19.7°C9.7°C | 9.7°C | 66 | 11.2 | 11.712 h |
| November | 19.6°C7.5°C | 7.5°C | 22 | 4.7 | 11.211 h |
| December | 19.7°C6.1°C | 6.1°C | 10 | 2.2 | 11.011 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
- Cuautitlán in SeptemberMexico · 5 kmHigh 20.5°C · Low 11.7°C · 125 mm rain
- Ciudad López Mateos in SeptemberMexico · 10 kmHigh 20.6°C · Low 11.8°C · 173 mm rain
- San Pablo de las Salinas in SeptemberMexico · 13 kmHigh 20.7°C · Low 11.7°C · 96 mm rain
- Ecatepec de Morelos in SeptemberMexico · 17 kmHigh 20.1°C · Low 11.4°C · 151 mm rain
- Naucalpan de Juárez in SeptemberMexico · 19 kmHigh 20.2°C · Low 11.5°C · 173 mm rain
- Gustavo Adolfo Madero in SeptemberMexico · 20 kmHigh 20.3°C · Low 11.7°C · 151 mm rain
- Zumpango in SeptemberMexico · 21 kmHigh 20.9°C · Low 12.0°C · 96 mm rain
- Ojo de Agua in SeptemberMexico · 22 kmHigh 21.0°C · Low 12.0°C · 96 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 Cuautitlán Izcalli) is explained once on the Cuautitlán Izcalli year overview and on the Sources, method and limits page.
Cuautitlán lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.