Los Cabos (Cabo San Lucas) weather in August
August in Los Cabos: sweltering, rainy, with clean air — fine if you can take 40°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#11 of 12 months in Los Cabos · #551 of 1413 destinations to visit in August · comfort 83/100 (tier A)
- Days
- 34°C
- Nights
- 28°C
- Wet days
- 11
- Sun
- 11.3 h
- Humidity
- 76%
- Daylight
- 13 h

Traveller notes on Los Cabos in August
Notes from nearby La Paz, Baja California (145 km away)
Los Cabos doesn't have its own notes for August yet — these are about La Paz, Baja California, close enough to share the season.
Forum posters describe August as La Paz's warmest, most humid month, with daytime temperatures commonly cited in the high 90sF and posters noting rain, while possible, actually falls infrequently despite August sitting within the broader May-October hurricane season. Posters describe the mid-August-through-mid-October stretch specifically as when humidity and the chance of a tropical storm both climb, making it something of a gamble rather than a guaranteed washout. Posters do flag a genuine upside: August is a notably quiet, uncrowded time to visit compared to the winter high season. Posters generally rate August as hot and humid with real but modest storm risk for La Paz, appealing mainly to travelers prioritizing low crowds over ideal comfort.
Other months in Los Cabos
Cabo-forum threads on June weather are unusually unanimous: hot and dry, essentially no precipitation, exactly the combination regulars say they come here for. Multiple posters who visit every June for years running report never seeing a drop in the month, one specifically noting the previous year saw no precipitation at all through the entire stretch. Daytime highs run into the high 80s to 90 Fahrenheit with nights cooling into the upper 60s to low 70s, a real day-to-night swing that makes evenings genuinely comfortable after a hot afternoon. The ocean itself runs cooler than the air this time of year, refreshing rather than bathtub-warm. A steady breeze off the water is a regular feature, worth knowing if you plan time on the beach. May through early June together get called some of the most reliable weather of the whole year here. The record: 32.7C days feeling like a punishing 36C, 25.9C nights, just 14mm across 1.2 days, a 27.4C sea, 68 percent humidity and 12.5 hours of sun.
Cabo-forum threads on July weather run hot but not universally uncomfortable: daytime highs regularly into the mid-90s Fahrenheit, hot enough that regulars call it a desert climate with genuine ocean influence rather than the muggier heat of the Mexican mainland. Posters draw a specific contrast with August, tagging July as "hot and dry" against August's "hot and humid," though everyone agrees there's still real humidity in July. Nights are consistently praised as the redeeming feature, cooling desert-style to make evenings genuinely pleasant after a scorching afternoon. The water runs warm and beaches thin out compared to the winter high season. The standing advice is to go early in the month if given a choice, since conditions gradually intensify toward August. The record: 33.8C days feeling like a punishing 39C, 28C nights, just 17mm across 4.3 days, a 29.4C sea, 71 percent humidity and 12.4 hours of sun - hot and comparatively dry exactly as the forum frames it.
Cabo-forum threads on September weather are direct that it's the least favorable month by the numbers - hurricane season proper, hot and humid with the year's heaviest rainfall, and the standing advice is to check the tropical storm outlook before booking flights. That said, regulars are equally direct that most Septembers pass without a direct hit, delivering brief, heavy downpours that clear fast and leave the desert visibly greener along with some spectacular sunsets rather than a washed-out trip. A practical side effect: several restaurants close for part of the month since it's their slowest stretch, worth checking ahead. Prices and crowds both drop accordingly, the trade-off for the weather risk. The record: 32.3C days feeling like a sticky 39C, 26.6C nights, 120mm across 10.8 days, a 30.2C sea, 79 percent humidity and 10.7 hours of sun - the heaviest rain month on Cabo's whole calendar, exactly matching the hurricane-season framing.
Cabo-forum threads on January weather call it the coolest month of the year here, warm 70s Fahrenheit afternoons against chilly low-60s mornings and evenings that make sweaters and light jackets worth packing for after dark. That's the extent of the downside, though - posters describe the month as crazy sunny, under half an inch of precipitation across the whole month, close to a guarantee of clear skies. The other big draw: January sits right in the middle of the December-15-to-April-15 whale migration season, prime time for sightings, and whales show up from the beaches and resort balconies too, binoculars recommended. The record: 25.8C days feeling like 26C, 16.9C nights, just 2mm across half a day, a 22.3C sea, 65 percent humidity and 9.7 hours of sun - dry, sunny, and cooler than the rest of the year without being cold.
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Los Cabos climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Los Cabos in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Quietschool holidays in 3 of the markets that fill it, one of its worst months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Los Cabos's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherLos Cabos's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Los Cabos in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Pacific hurricane season
15 May – 30 NovThe southern tip of Baja is where eastern Pacific storms go to die, and Odile in 2014 shut the airport for weeks. September is the month that matters; many small hotels close for part of it. Source ↗
Where is Los Cabos?
Los Cabos in August — FAQ
- Is August a good time to visit Los Cabos?
- August in Los Cabos: sweltering, rainy, with clean air — fine if you can take 40°C afternoons. It ranks #11 of 12 months for Los Cabos on SeasonMap's comfort score (83/100).
- What is the weather like in Los Cabos in August?
- In August, Los Cabos averages a daily high of 33.5°C and a low of 27.7°C, with about 92.5 mm of rain over roughly 10.8 rainy days.
- What is the air quality in Los Cabos in August?
- Los Cabos has a mean US Air Quality Index of about 40 in August.