Climate averages 1991–2020
San José del Cabo weather
in September.
A hot, wet month: the 5th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in San José del Cabo: daytime highs average 31.4°C and nights cool to about 25.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 140 mm of rain on roughly 11 days, which makes September a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average September day.
The nearest other city in this atlas is Cabo San Lucas (28 km away). In September its highs average 30.5°C, 1.0°C cooler than San José del Cabo, with 124 mm of rain.
Among the 153 cities listed in Mexico, San José del Cabo ranks 20th of 153 for the warmest September highs and 75th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; San José del Cabo is 4.9°C warmer than that mean.
From September to October, average highs rise by 0.4°C to 31.8°C, and monthly rainfall falls from 140 mm to 25 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
San José del Cabo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.8°C15.4°C | 15.4°C | 8.3 | 1.3 | 10.911 h |
| February | 26.4°C15.5°C | 15.5°C | 8.4 | 0.8 | 11.411 h |
| March | 27.8°C16.6°C | 16.6°C | 1.2 | 0.2 | 12.012 h |
| April | 29.4°C18.3°C | 18.3°C | 0.5 | 0.1 | 12.713 h |
| May | 31.2°C20.6°C | 20.6°C | 0.4 | 0.2 | 13.213 h |
| June | 32.2°C23.5°C | 23.5°C | 5.7 | 0.6 | 13.514 h |
| July | 33.1°C25.7°C | 25.7°C | 21 | 3.7 | 13.413 h |
| August | 32.8°C26.2°C | 26.2°C | 73 | 9.1 | 12.913 h |
| September, selected | 31.4°C25.4°C | 25.4°C | 140 | 10.5 | 12.312 h |
| October | 31.8°C23.5°C | 23.5°C | 25 | 3.1 | 11.612 h |
| November | 29.3°C19.9°C | 19.9°C | 18 | 1.8 | 11.111 h |
| December | 26.2°C16.6°C | 16.6°C | 9.2 | 1.1 | 10.711 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
- Cabo San Lucas in SeptemberMexico · 28 kmHigh 30.5°C · Low 26.4°C · 124 mm rain
- La Paz, Mexico in SeptemberMexico · 136 kmHigh 32.9°C · Low 25.3°C · 61 mm rain
- Culiacán in SeptemberMexico · 305 kmHigh 31.8°C · Low 24.5°C · 174 mm rain
- Guasave in SeptemberMexico · 306 kmHigh 33.1°C · Low 25.0°C · 113 mm rain
- Los Mochis in SeptemberMexico · 313 kmHigh 33.3°C · Low 25.6°C · 102 mm rain
- Guamúchil in SeptemberMexico · 314 kmHigh 32.6°C · Low 24.5°C · 131 mm rain
- Mazatlán in SeptemberMexico · 336 kmHigh 29.7°C · Low 25.1°C · 205 mm rain
- Navojoa in SeptemberMexico · 447 kmHigh 35.0°C · Low 25.0°C · 90 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 San José del Cabo) is explained once on the San José del Cabo year overview and on the Sources, method and limits page.