Cabo San Lucas weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: October – June
What is the weather like in Cabo San Lucas in August?
In August, Cabo San Lucas is very hot: daytime highs average 33 °C, and even at night it stays warm at around 27 °C. The sea averages 28.7 °C – lovely and warm for swimming. With around 10 hours of sunshine a day, there is plenty of sun. It is the rainy season: rain falls on about 15 days, totalling 103 mm. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a good month for a holiday in Cabo San Lucas.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 84 | 74 | 80 |
| Day | 33° | 33° | 32° |
| Night | 26° | 27° | 26° |
| Sea | 27° | 29° | 29° |
| Sun | 11 h | 10 h | 9 h |
| Rain days | 7 | 15 | 15 |
More details for August
- Daylight
- 12 h 57 min05:56 – 18:53
- UV index
- 12 · extremeclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 10 km/haverage daily peak
- Cloud cover
- 55 %on average
- Hot days
- 29 days30 °C or more
- Time zone
- UTC−7America/Mazatlan
How the score comes together
- Temperatureweight 35 %70 %
- Seaweight 25 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 20 %24 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Cabo San Lucas in August: quick answers
Is Cabo San Lucas hot in August?
Yes. In August, Cabo San Lucas is very hot: daytime highs average 33 °C and nights stay around 27 °C. On about 29 days the thermometer climbs to 30 °C or more.
Can you swim in Cabo San Lucas in August?
Yes. In August the sea averages 28.7 °C – lovely and warm for swimming.
Does it rain much in Cabo San Lucas in August?
It rains often – on about 15 days, adding up to 103 mm.
Cabo San Lucas month by month
The whole year in Cabo San LucasAll destinations: Mexico
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)