Cabo San Lucas Weather in August

Baja California Sur, Mexico

High / Low
88.9° / 79.9°
Rain days
8.1
Sea temp
87.4°F
Storm risk
elevated

Pick your travel dates to see the odds.

Temperature by month (°F) High Low Sea
60 65 70 75 80 85 90 JanFebMarAprMayJunJulAugSepOctNovDec
Rain days by month
0 5 10 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

August is where Cabo's hurricane season becomes a real factor, the historical data shows 14 storm days recorded since 1985, a sharp jump from July, alongside the year's hottest weather: 88.9°F highs and humidity at 73%.

Rain increases to 8.1 days on average, still less than a Caribbean wet-season month but a real shift from the bone-dry spring.

The sea peaks near its warmest at 87.4°F, excellent for swimming, though rougher surf and stronger currents become more common when storms are active in the region, always check conditions before swimming, especially on the more exposed Pacific side.

August is deep summer-holiday season, so despite the elevated storm risk, crowds and pricing stay meaningfully higher than the June value window.

This is prime marlin tournament season building toward the fall, striped and blue marlin fishing remains excellent, with charter demand rising alongside the season's momentum toward October's famous Bisbee's Black & Blue tournament.

Booking flexible cancellation policies and storm-inclusive travel insurance is genuinely worth doing for an August Cabo trip, given how sharply the historical storm-day count jumps this month.

Golf and desert excursions are best scheduled for early morning; by August the combination of heat, humidity and afternoon storm buildup makes midday outdoor activity the least comfortable stretch of the year.

Historic storms have made direct landfall near Los Cabos in this general window (August through October), so this isn't a purely theoretical risk the way it is in Cabo's winter and spring months, treat forecasts seriously in the days before and during a trip.

Pack for heat, humidity and the possibility of rain; keep travel plans flexible and monitor the Eastern Pacific tropical outlook if booking close to departure.

Frequently asked questions

Is hurricane season a real risk in Cabo San Lucas in August?

Yes, the record shows 14 storm days since 1985 in August, a sharp jump from earlier summer months. Travel insurance is worth having.

How hot is Cabo San Lucas in August?

Very hot and humid: highs average 88.9°F with humidity at 73%, the muggiest stretch of the year so far.

Is August a good month for marlin fishing in Cabo?

Yes, striped and blue marlin fishing is excellent, building toward the fall tournament season.

Does it rain a lot in Cabo San Lucas in August?

More than the dry-season months, around 8 rain days, though still less than a typical Caribbean wet-season month.

Has a hurricane ever directly hit Cabo San Lucas?

Yes, this general window, August through October, has seen historic storms make landfall near Los Cabos, so the risk here is real, not just theoretical.

Weather data by Open-Meteo.com (CC BY 4.0) and the NOAA National Hurricane Center. Data updated September 2026. How we calculate.