Climate averages 1991–2020
Cabo San Lucas weather
in August.
A hot, moderately wet month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Cabo San Lucas: daytime highs average 31.1°C and nights cool to about 26.6°C. By daytime temperature it is the warmest month of the year.
Expect about 65 mm of rain on roughly 9 days, which makes August a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 55 min on an average August day.
The nearest other city in this atlas is San José del Cabo (28 km away). In August its highs average 32.8°C, 1.7°C warmer than Cabo San Lucas, with 73 mm of rain.
Among the 153 cities listed in Mexico, Cabo San Lucas ranks joint 47th of 153 for the warmest August highs and joint 33rd of 153 for the driest August (rainfall, lowest first). The mean August high of those 153 cities is 27.9°C; Cabo San Lucas is 3.2°C warmer than that mean.
From August to September, average highs fall by 0.6°C to 30.5°C, and monthly rainfall rises from 65 mm to 124 mm.
The annual picture
August 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
Cabo San Lucas climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.8°C18.1°C | 18.1°C | 7.7 | 1.3 | 10.911 h |
| February | 24.9°C17.9°C | 17.9°C | 8.5 | 0.9 | 11.411 h |
| March | 25.5°C18.5°C | 18.5°C | 1.1 | 0.3 | 12.012 h |
| April | 26.4°C19.7°C | 19.7°C | 0.4 | 0.1 | 12.713 h |
| May | 27.7°C21.2°C | 21.2°C | 0.4 | 0.2 | 13.213 h |
| June | 28.6°C23.1°C | 23.1°C | 5.3 | 0.6 | 13.514 h |
| July | 30.4°C25.6°C | 25.6°C | 19 | 3.6 | 13.413 h |
| August, selected | 31.1°C26.6°C | 26.6°C | 65 | 8.9 | 12.913 h |
| September | 30.5°C26.4°C | 26.4°C | 124 | 10.4 | 12.312 h |
| October | 30.4°C25.2°C | 25.2°C | 24 | 3.0 | 11.612 h |
| November | 28.3°C22.3°C | 22.3°C | 16 | 1.8 | 11.111 h |
| December | 25.7°C19.3°C | 19.3°C | 9.8 | 0.9 | 10.811 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
August in nearby cities
- San José del Cabo in AugustMexico · 28 kmHigh 32.8°C · Low 26.2°C · 73 mm rain
- La Paz, Mexico in AugustMexico · 145 kmHigh 34.4°C · Low 25.9°C · 27 mm rain
- Guasave in AugustMexico · 332 kmHigh 34.0°C · Low 25.8°C · 114 mm rain
- Culiacán in AugustMexico · 333 kmHigh 32.6°C · Low 25.0°C · 178 mm rain
- Los Mochis in AugustMexico · 336 kmHigh 34.4°C · Low 26.5°C · 92 mm rain
- Guamúchil in AugustMexico · 341 kmHigh 33.4°C · Low 25.3°C · 166 mm rain
- Mazatlán in AugustMexico · 359 kmHigh 30.2°C · Low 25.4°C · 184 mm rain
- Navojoa in AugustMexico · 467 kmHigh 35.6°C · Low 26.2°C · 104 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 Cabo San Lucas) is explained once on the Cabo San Lucas year overview and on the Sources, method and limits page.