August in Cabo San Lucas is hot, humid, and warm-watered, with peak marlin fishing and low prices, balanced against rising hurricane-season risk. Here's the weather, crowds, prices, and what to book.
What You Should Know
- August is the hottest, most humid stretch of the year in Cabo San Lucas, with the warmest sea and excellent swimming, snorkeling, and marlin fishing; schedule land tours for early morning.
- Hurricane-season risk steps up in August toward its September peak, so brief storms and the occasional tropical system are more likely; book flexible tours and consider travel insurance.
- Prices are low and value is strong, especially after the early-August family-travel tail eases; this is one of the most affordable months in Cabo.
- Whale season is over (mid-December through April); August's marine draw is warm-water reef time and peak summer sportfishing, with marlin especially strong.
Cabo San Lucas in August: Is It Worth It?
⭐ Best August window: the first two weeks. Early August offers the warmest sea, peak marlin fishing, and low rates with slightly lower storm odds than the back half of the month, when hurricane-season risk climbs toward its September peak.
Cabo San Lucas in August is peak summer: the hottest, most humid month, with the warmest water of the year and a sportfishing scene at full tilt. It is also low season, so prices are among the lowest and crowds thin after the early-month family tail. The real consideration is weather risk: August sits in the ramp toward peak hurricane season, so brief storms become more likely and a tropical system is possible. For heat-tolerant, flexible travellers chasing warm water and marlin at low prices, August delivers.
| Factor | August Rating |
|---|---|
| Weather | 5/10 — hottest, most humid month; superb for water, hard for midday land tours |
| Crowds | 6/10 — moderate early, easing late; quieter than the winter peaks |
| Prices | 8/10 — low season; among the best hotel value of the year |
| Beaches | 8/10 — warmest water of the year; midday heat sends many to shade or pool |
| Whale Watching | 0/10 — not available (season runs mid-December through April) |
| Sportfishing | 9/10 — peak marlin season; dorado and tuna also strong |
| Nightlife | 7/10 — lively but easing from the July family peak |
| Families | 6/10 — warm water, but heat, humidity, and rising storm risk weigh in |
| Couples | 6/10 — warm and affordable; build the day around water and evenings |
💰 Average August hotel prices (Cabo San Lucas / Tourist Corridor, mid-range 4-star):
Early August: ~$190/night · Late August: ~$165/night
Rough mid-range estimates; rates vary by property and booking lead time.
So who is August for? We'd lean toward August for anglers after peak marlin, water lovers who handle heat, and value travellers who want the lowest rates and don't mind a weather gamble. We'd book August if warm sea and fishing are the draw and you build in flexibility. We'd only steer you elsewhere if you want dependable, settled weather or whales, in which case winter and spring are safer bets. Most people don't realize how good the marlin fishing is in August; it is the headline reason serious anglers pick the month despite the heat.
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Cabo San Lucas Weather in August
| Metric | August |
|---|---|
| Avg High | 34°C (93°F) |
| Avg Low | 23°C (73°F) |
| Water Temp | 28–29°C (82–84°F) |
| Rain Days | ~3 |
| Humidity | High |
| Wind | Light |
| Hurricane Risk | Moderate to high (rising toward the September peak) |
Temperature and Humidity
August is the peak of Cabo's heat and humidity. Daytime highs run around 33–34°C (91–93°F), nights stay warm and muggy near 23°C (73°F), and the humidity makes the heat feel heavier still. Early morning is the only genuinely comfortable window for active land tours; midday is for the water or the shade.
Rain Pattern
August is one of the wetter months by Cabo's dry standards, with brief but sometimes heavy afternoon and evening downpours and the occasional thunderstorm. Totals remain modest most years, and sunshine still dominates mornings, but the chance of a tropical disturbance rises as the month goes on.
Sea and Outdoor Conditions
The water is at its warmest of the year, 28–29°C (82–84°F), bath-like and ideal for swimming, snorkeling, and diving. Seas are generally calm between weather systems, with light winds. The recurring theme is timing: get on or in the water early, watch the forecast for any developing systems, and keep midday for cooling off. Médano Beach remains the safest swimming bay, and morning snorkel visibility is good ahead of afternoon showers.
Cabo Weather by Month: How August Compares
August is the hot, humid peak of summer. Here is how it lines up against the rest of the year across the four factors that most shape a trip.
| Month | Weather | Water Temp | Whales | Crowds |
|---|---|---|---|---|
| January | Excellent (dry, mild) | Cool | Peak | Very high |
| February | Excellent (dry, mild) | Cool | Peak (best for calves) | High |
| March | Excellent, warming | Warming | Peak | High (spring break) |
| April | Warm, dry | Warming | End of season | Moderate (Easter spike) |
| May | Warm, dry | Pleasant | None | Moderate (low) |
| June | Hot, sunny | Warm | None | Low |
| July | Hot, humid | Warm | None | Moderate (summer) |
| August | Hot, humid | Warmest | None | Moderate |
| September | Hot, humid, storm risk | Warmest | None | Low |
| October | Warm, easing | Warm | None | Low–moderate |
| November | Warm, dry | Pleasant | None | Moderate |
| December | Excellent (dry, mild) | Cooling | Season starts | High (late-month holidays) |
Crowds and Prices in August
August is low season with strong value, though the picture shifts across the month as summer family travel winds down and storm risk climbs.
- Early August: warm sea, peak fishing, some family travel. The warmest water of the year and peak marlin season, with the tail of summer family demand keeping things moderately busy. Our take: the best balance of conditions and value.
- Mid-to-late August: quietest and cheapest, higher storm odds. Family travel fades, rates drop further, and beaches quiet down, but hurricane-season risk is climbing toward its September peak. Best for flexible, weather-tolerant travellers.
Expect mid-range 4-star hotels around $165–$190/night, among the lowest of the year, with easy last-minute availability. Flights ease as summer demand fades late month. Most guests find August offers genuine low-season value and the warmest sea of the year, with weather risk as the trade-off, which is why flexible booking matters most this month.
Marlin Season and Warm-Water Activities in August
August is Cabo's marlin month. The warm water concentrates big game close to shore, and the sportfishing is the single best reason serious anglers choose the month despite the heat.
- Sportfishing: August is peak season for striped and blue marlin in the Sea of Cortez, with dorado and tuna also strong. It is a prime month to fish out of Cabo or La Paz, and the early-autumn tournaments begin building from here. We'd give August the edge for marlin.
- Snorkeling and diving: the warmest water of the year makes for comfortable, no-wetsuit reef time at Pelican Rock, Chileno Bay, and Cabo Pulmo, best in the morning before afternoon showers.
- Beaches and swimming: bath-warm sea and sun make for excellent early and late beach time; midday belongs to shade or the pool.
- La Paz day trips: the Playa Balandra and Isla Espíritu Santo boat trips run, with the Los Islotes sea lion swim reopening from September.
Whales return in mid-December, so August is firmly a warm-water and fishing month. For the full season, see our whale watching guide.
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Heat and Hurricane Risk in August
August's two defining factors are extreme heat and the climb toward peak storm season. Both are manageable, but August asks for more flexibility than the dry months.
Peak Heat and Humidity
This is the hottest, most humid month. Do active land tours at sunrise, keep midday for the beach, pool, or an air-conditioned break, and use the warm sea to stay comfortable. Hydration and reef-safe sun protection are essential; the combination of heat and humidity is no joke in August.
Rising Hurricane Risk
August sits in the ramp toward September's peak storm risk. Brief afternoon storms are common, and the odds of a tropical system passing near Baja rise through the month. Significant systems generally give several days of warning, and direct hits are uncommon, but August is the month to take flexibility seriously: book tours and hotels with free cancellation, buy travel insurance, and keep an eye on the forecast in the days before you travel.
Best Activities in Cabo San Lucas in August
| Activity | August Rating | Best Time of Day | Notes |
|---|---|---|---|
| Sportfishing (La Paz / Cabo) | 9/10 | Morning | Peak marlin season; dorado and tuna also strong |
| Snorkeling tours | 9/10 | Morning | Warmest water of the year; go before afternoon storms |
| Scuba diving | 8/10 | Morning | Bath-warm water and clear conditions; Los Islotes swim reopens in September |
| Sunset catamaran cruise | 9/10 | Evening | The coolest, most comfortable way to enjoy the water |
| Tequila tasting | 9/10 | Afternoon | Air-conditioned and weather-proof; ideal in the midday heat |
| Playa Balandra (La Paz) | 8/10 | Early morning | Calm, shallow, turquoise bay; go at sunrise to beat the heat |
| Hip hop boat party | 8/10 | Daytime | Warm water and summer energy keep the party boats lively |
| ATV desert tours | 5/10 | Early morning | Hot, dusty, and humid; only the earliest departure is comfortable |
| Camel ride & eco ranch | 5/10 | Early morning | Tough in peak heat; go at sunrise and hydrate |
| Zipline canyon circuit | 6/10 | Early morning | Great views but hot; earliest slot only |
| Whale watching | 0/10 | — | Not available; season runs mid-December through April |
What we'd prioritise in August
August is for fishing and water. We'd give the edge to a sportfishing charter in peak marlin season, plus snorkeling and diving in the warmest sea of the year. Evening sunset cruises are the comfortable way to be on the water. Keep desert tours like ATV rides to the earliest morning slot, and lean on an air-conditioned tequila tasting or cooking class for the midday heat. For the complete menu, see our guide to the best things to do in Cabo San Lucas, and our Cabo San Lucas itinerary guide for sequencing it all.
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More August Activities Worth Booking
Beyond the headliners, a few experiences round out an August trip especially well, even if they don't have a dedicated guide on this site yet:
- Marlin sportfishing charter: August's peak bite makes a half- or full-day charter the standout outing of the month for anglers.
- Cabo Pulmo snorkel or dive day trip: the bath-warm, clear water makes the protected marine park's reefs a summer highlight.
- Sunset catamaran cruise around El Arco: the most comfortable way to spend a hot August evening on the water.
- Early-morning desert tour: book the first ATV or camel departure to beat the heat and humidity.
- Pool-and-beach resort day: with low rates, August is a good month to book a property with great pools and shade.
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From Our Experience
The one thing we'd tell every August visitor is to build genuine flexibility into the trip: this is the month where free-cancellation tours, refundable hotels, and travel insurance matter most, because the warm sea and low prices come paired with the year's rising storm risk.
Tips for Visiting Cabo San Lucas in August
- Fish early in the month if you can. August is peak marlin season; morning departures land the calmest seas and the best bite, and early August has slightly lower storm odds.
- Book everything flexible. Free cancellation on tours and hotels, plus travel insurance, are worth it during the climb toward peak hurricane season.
- Do land tours at sunrise. ATV, camel, and zipline tours are tough in August's peak heat and humidity; the earliest slot is far more bearable.
- Use the warm sea to beat the heat. At 28–29°C, the water is bath-warm and the best place to be through hot afternoons.
- Watch the forecast before you travel. Significant systems usually give several days' notice; keep an eye on it in the days before your trip and pack a flexible attitude.
- Hydrate and protect from the sun. Heat plus humidity makes water and reef-safe sunscreen essential.
- Late August is the cheapest, quietest window. If you're weather-tolerant and flexible, the back half of the month offers the lowest rates of the year.
- Visiting at a different time of year? August is peak heat and storm season; our Cabo in July guide covers earlier summer, and Cabo in September covers the cheapest, quietest, stormiest month. For the full picture of the season, see our Cabo in summer guide. For whales and cooler weather, January through March are the peak months.
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How We Put This Guide Together
The Cabo Tour Guides team built this August guide from long-run climate data for Los Cabos, sea-temperature and sportfishing season patterns for the Sea of Cortez, hurricane-season records, and the booking and pricing trends we track across local operators and hotels through the low summer season. Ratings reflect what actually shapes an August trip: the hottest, most humid weather of the year, the warmest sea, peak marlin fishing, low prices, and the climb toward peak hurricane-season risk. We weighed each activity on how its real-world conditions change in August rather than on its year-round reputation. Tour recommendations point to operators with verified booking records and strong review volume, with an emphasis on early-morning departures and free-cancellation flexibility.
Frequently Asked Questions
Is Cabo San Lucas good in August?+
It can be, with the right expectations. August brings the warmest sea of the year, peak marlin fishing, and low prices. The trade-offs are extreme heat and humidity and rising hurricane-season risk, so it suits heat-tolerant, flexible travellers who build their days around the water.
What is the weather like in Cabo San Lucas in August?+
August is the hottest, most humid month. Daytime highs average about 34°C (93°F), nights stay warm near 23°C (73°F), and humidity is high. Brief afternoon storms are common, and ocean water is at its warmest of the year at 28–29°C (82–84°F).
Is August hurricane season in Cabo San Lucas?+
Yes, August sits in the climb toward the September peak of hurricane season. Brief afternoon storms are common and the chance of a tropical system passing near Baja rises through the month. Direct hits are uncommon and systems usually give several days' warning, but flexible bookings and travel insurance are strongly advised.
Is August a good month for fishing in Cabo San Lucas?+
Yes, it is peak marlin season. The warm water concentrates striped and blue marlin in the Sea of Cortez, with dorado and tuna also strong. August is one of the best months of the year to fish out of Cabo or La Paz, and morning departures are best.
Is August expensive in Cabo San Lucas?+
No, it is one of the cheapest months. Mid-range 4-star hotels run around $165–$190/night, with easy last-minute availability. Late August is the lowest, quietest window, though it also carries the highest storm odds of the month.
Is the water warm enough to swim in Cabo in August?+
Very. August water is at its warmest of the year at 28–29°C (82–84°F), bath-like and ideal for swimming, snorkeling, and diving with no wetsuit. The warm sea is also the most comfortable place to be through the hot afternoons.
What activities are best in Cabo in August?+
August is a fishing-and-water month. Marlin sportfishing is at its peak, and snorkeling, diving, and sunset cruises shine in the warmest sea of the year. Save desert tours like ATV and ziplining for the earliest morning slot, and use an air-conditioned tequila tasting for the midday heat.
Can you see whales in Cabo San Lucas in August?+
No. Humpback whale season runs mid-December through April and is over in August. The marine highlights are warm-water snorkeling and diving plus peak marlin sportfishing. Humpbacks return in mid-December.
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