Climate averages 1991–2020
Ocotlán weather
in September.
A warm, wet month: the 9th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Ocotlán: daytime highs average 25.5°C and nights cool to about 15.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 95 mm of rain on roughly 17 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average September day.
The nearest other city in this atlas is Tepatitlán de Morelos (52 km away). In September its highs average 24.0°C, 1.4°C cooler than Ocotlán, with 193 mm of rain.
Among the 153 cities listed in Mexico, Ocotlán ranks joint 79th of 153 for the warmest September highs and joint 29th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Ocotlán is 1.1°C cooler than that mean.
From September to October, average highs rise by 0.3°C to 25.8°C, and monthly rainfall falls from 95 mm to 39 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
Ocotlán climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 23.7°C10.9°C | 10.9°C | 16 | 1.9 | 11.011 h |
| February | 25.8°C12.2°C | 12.2°C | 11 | 1.7 | 11.511 h |
| March | 28.4°C13.8°C | 13.8°C | 9.0 | 1.3 | 12.012 h |
| April | 30.8°C16.0°C | 16.0°C | 4.2 | 1.4 | 12.613 h |
| May | 31.5°C17.4°C | 17.4°C | 20 | 5.2 | 13.113 h |
| June | 28.7°C17.3°C | 17.3°C | 88 | 16.6 | 13.313 h |
| July | 26.1°C16.0°C | 16.0°C | 110 | 21.4 | 13.213 h |
| August | 26.1°C15.8°C | 15.8°C | 96 | 20.4 | 12.813 h |
| September, selected | 25.5°C15.5°C | 15.5°C | 95 | 17.1 | 12.312 h |
| October | 25.8°C14.7°C | 14.7°C | 39 | 7.6 | 11.712 h |
| November | 25.1°C13.0°C | 13.0°C | 14 | 2.6 | 11.211 h |
| December | 24.0°C11.7°C | 11.7°C | 6.2 | 1.4 | 10.911 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
- Tepatitlán de Morelos in SeptemberMexico · 52 kmHigh 24.0°C · Low 14.7°C · 193 mm rain
- Tonalá in SeptemberMexico · 58 kmHigh 24.3°C · Low 15.6°C · 130 mm rain
- Tlaquepaque in SeptemberMexico · 63 kmHigh 25.0°C · Low 16.3°C · 157 mm rain
- Zamora de Hidalgo in SeptemberMexico · 65 kmHigh 25.2°C · Low 14.5°C · 223 mm rain
- Hacienda Santa Fe in SeptemberMexico · 66 kmHigh 25.2°C · Low 16.6°C · 139 mm rain
- Guadalajara in SeptemberMexico · 70 kmHigh 25.5°C · Low 16.5°C · 157 mm rain
- Zapopan in SeptemberMexico · 76 kmHigh 25.6°C · Low 16.5°C · 168 mm rain
- La Piedad de Cabadas in SeptemberMexico · 78 kmHigh 25.0°C · Low 14.6°C · 131 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 Ocotlán) is explained once on the Ocotlán year overview and on the Sources, method and limits page.