Cabo weather in August
August is among the hottest months in Cabo San Lucas and is the warmest by mean temperature in the station reference used here. Nights stay warm, and average rainfall rises substantially compared with July. Plan for heat and the possibility of disrupted outdoor days, rather than guaranteed sunshine between harmless showers.
For the year-round comparison and official forecast sources, use our Cabo weather guide.
August temperatures and rainfall
| Climate measure | 1991–2020 normal |
|---|---|
| Average daily high | 34.7°C (94.5°F) |
| Average daily low | 23.8°C (74.8°F) |
| Mean temperature | 29.3°C (84.7°F) |
| Monthly rainfall | 76.4 mm (3.01 in) |
| Mean days with rain | 3.4 |
Reference: SMN station 3005, Cabo San Lucas, 1991–2020 normals. These are historical station averages, not a forecast, daily limits or measurements for every part of Los Cabos. Mean rainy days can be fractional because they are averaged across years.
Rain and seasonal conditions
Rainfall varies widely, and a large part of a month’s rain can arrive in a short period. Thunderstorms or tropical weather can affect transport, beaches and excursions. Do not interpret the monthly average as a schedule of brief evening showers that leave every plan untouched.
Swimming and time on the water
The ocean may appeal during hot weather, but temperature does not establish safe swimming or paddling. Check the flags and local advice, and respect closures. A warm sea is not a reason to approach rough surf or ignore a changed tour itinerary.
Planning activities in August
Allow shaded or indoor time between activities. Local dining and cultural visits can provide variety, with opening hours confirmed for the actual dates. On a suitable day you may choose beach time or an organized water outing, while keeping a practical alternative if conditions change.
What to pack
Bring light, breathable clothing, sun protection, swimwear and a rain layer. Protect documents and electronics on the move. Check the cooling and shaded areas at your accommodation if heat is a major consideration for your group.
Dates, bookings and flexibility
August is within the eastern Pacific hurricane season. Compare the trip’s flexibility and disruption policy as well as the price. Keep up with official forecasts and instructions, rather than relying on a photograph of a calm summer sunset as evidence of current conditions.
Compare your options
July is the neighboring comparison with a lower long-term rain total. September has the highest rainfall normal in this station record.
Read Cabo weather in July and Cabo weather in September for the neighboring-month comparisons.