September is Cabo San Lucas at its cheapest and quietest, with the warmest sea of the year, but it is also peak hurricane season. Here's the honest weather, value, and risk breakdown.
What You Should Know
- September is the cheapest, quietest month in Cabo San Lucas, with the warmest sea of the year and wide-open availability; it is the year's best value if the weather cooperates.
- It is also the peak of hurricane season; September has the highest storm risk of any month, so flexible bookings and travel insurance are essential, not optional.
- Heat and humidity remain high and rainfall is at its yearly peak, usually as brief heavy storms rather than all-day rain, with mornings often still sunny.
- Whale season is over (mid-December through April); September's draws are the warm sea, strong sportfishing between weather systems, and rock-bottom prices for the heat-and-risk-tolerant traveller.
Cabo San Lucas in September: Is It Worth It?
⭐ Best September strategy: book flexible and watch the forecast. No single week is reliably storm-free, so the smart play is refundable hotels, free-cancellation tours, travel insurance, and a close eye on the tropics in the days before you travel. The reward is the year's lowest prices and emptiest beaches.
Cabo San Lucas in September is the calendar's biggest gamble, and its biggest bargain. It is the cheapest, quietest month, the water is at its warmest, and you can book almost anything last-minute. It is also the peak of hurricane season, the wettest, most humid month, and the one most likely to see a tropical system. For flexible, heat-tolerant travellers who can roll with the weather, September offers unbeatable value; for anyone who needs certainty, it is the riskiest month to choose.
| Factor | September Rating |
|---|---|
| Weather | 4/10 — hot, humid, and the wettest, stormiest month; sunny mornings common |
| Crowds | 9/10 — the quietest month of the year; beaches and tours wide open |
| Prices | 10/10 — the cheapest month; the best hotel value of the year |
| Beaches | 7/10 — warmest water of the year, but storm swell and closures can interrupt |
| Whale Watching | 0/10 — not available (season runs mid-December through April) |
| Sportfishing | 8/10 — still strong for marlin and dorado between weather systems |
| Nightlife | 6/10 — quietest of the year; some venues run reduced hours |
| Families | 6/10 — great value, but heat, humidity, and storm risk are real considerations |
| Couples | 6/10 — cheap and quiet, with weather as the wildcard |
💰 Average September hotel prices (Cabo San Lucas / Tourist Corridor, mid-range 4-star):
All September: ~$150/night (the cheapest of the year)
Rough mid-range estimates; rates vary by property and booking lead time.
So who is September for? We'd lean toward September for budget travellers and warm-water lovers who can stay flexible and accept weather risk. We'd book September if value and empty beaches matter most and you protect yourself with refundable bookings and insurance. We'd only steer you away if you need guaranteed sunshine for a once-in-a-lifetime trip, in which case a drier month is worth the higher price. Most people don't realize that September's storms are usually brief; many days still deliver sunny mornings, and the risk is about the occasional system, not constant rain.
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Cabo San Lucas Weather in September
| Metric | September |
|---|---|
| Avg High | 33°C (91°F) |
| Avg Low | 23°C (73°F) |
| Water Temp | 29–30°C (84–86°F) |
| Rain Days | ~4–5 (wettest month) |
| Humidity | High |
| Wind | Light, variable (higher near systems) |
| Hurricane Risk | High (peak of the season) |
Temperature and Humidity
September stays hot and very humid, with daytime highs around 32–34°C (90–93°F) and warm, muggy nights near 23°C (73°F). It feels much like August, with the added weight of peak-season moisture. Early mornings are the most comfortable hours; midday is for the water or air conditioning.
Rain Pattern
September is the wettest month of the year, but the rain typically comes as short, intense afternoon or evening storms rather than steady all-day rain. Many mornings are still bright and sunny. The bigger weather story is the chance of a tropical system; when one approaches, it can bring a day or two of heavy rain, wind, and surf before clearing.
Sea and Outdoor Conditions
The water is at its warmest of the year, 29–30°C (84–86°F), and between weather systems the sea is calm and superb for swimming and snorkeling. The caveat is storm swell: as systems pass, beaches may flag red and boat tours may pause for a day or two. Plan water activities for calm mornings, stay flexible, and always check local flag and operator status before heading out.
Cabo Weather by Month: How September Compares
September is the wettest, stormiest, but cheapest month. 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 (quietest) |
| 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 September
September is the low point of the year for both crowds and prices, which is precisely why it appeals to bargain hunters. Demand is minimal all month.
- The whole month is cheap and quiet. Summer family travel is over, the weather keeps casual visitors away, and rates fall to their yearly floor. Beaches, tours, and restaurants are wide open. Our take: if the forecast looks clear for your dates, the value is unmatched.
- Storm risk is the constant. No week is reliably storm-free, so the calendar matters less than your flexibility. Booking refundable and watching the tropics is more important than picking the "right" week.
- Some venues reduce hours. A handful of restaurants and operators take their annual break in September, so confirm openings, especially for specific tours or dining.
Expect mid-range 4-star hotels around $150/night, the lowest of the year, with luxury resorts also heavily discounted. Flights are at their cheapest too. Most guests find September is a calculated bet: the savings are real and large, but they come paired with the year's highest weather risk, so protect the trip with flexible bookings and insurance.
The September Trade-off: Best Value vs. Peak Storm Risk
September is the clearest value-versus-risk decision on the Cabo calendar. Understanding both sides lets you make it with eyes open.
The Value Side
This is the cheapest month to visit Cabo, full stop. Hotels, flights, and even luxury resorts sit at their yearly lows, the beaches are empty, and the warm sea is at its best between systems. For a flexible traveller who lands a clear stretch of weather, September delivers a high-end trip at a low-season price.
The Risk Side
September is the statistical peak of eastern Pacific hurricane season, and Baja California Sur sits in the zone. Most September trips are fine, with brief storms rather than major systems, but the chance of a tropical storm or hurricane affecting your dates is higher than any other month. A system can mean a day or two of heavy rain, wind, beach closures, and paused tours.
How to Hedge
- Book refundable hotels and free-cancellation tours so weather changes cost you nothing.
- Buy travel insurance that covers weather disruption and trip interruption.
- Watch the tropics in the week before you travel; systems usually give several days of warning.
- Build a flexible itinerary with indoor and quick-to-rebook options, and keep water activities to calm mornings.
Whales return in mid-December, so September is a warm-water and value month, not a wildlife one. For the full whale season, see our whale watching guide.
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Best Activities in Cabo San Lucas in September
| Activity | September Rating | Best Time of Day | Notes |
|---|---|---|---|
| Sportfishing (La Paz / Cabo) | 8/10 | Morning | Marlin and dorado still strong between weather systems |
| Snorkeling tours | 8/10 | Morning | Warmest water of the year on calm days; watch for storm swell |
| Scuba diving | 8/10 | Morning | Warm water and Los Islotes sea lion swim reopening; check conditions |
| Sunset catamaran cruise | 8/10 | Evening | Great on calm evenings; rebook freely if a system moves through |
| Tequila tasting | 9/10 | Any | Air-conditioned, weather-proof; the reliable rainy-day option |
| Playa Balandra (La Paz) | 7/10 | Early morning | Calm, shallow bay; warm water, weather permitting |
| Hip hop boat party | 6/10 | Daytime | Runs on calm days; quieter crowd than summer |
| ATV desert tours | 5/10 | Early morning | Hot, humid, and muddy after rain; go early and check conditions |
| Camel ride & eco ranch | 5/10 | Early morning | Tough in heat and humidity; sunrise only |
| Zipline canyon circuit | 5/10 | Early morning | May pause in wind or storms; confirm operation |
| Whale watching | 0/10 | — | Not available; season runs mid-December through April |
What we'd prioritise in September
On calm days, September is a water month: sportfishing, snorkeling, and diving all shine in the warmest sea of the year, with the Los Islotes sea lion swim reopening this month. Because weather can interrupt, we'd keep a weather-proof backup like an air-conditioned tequila tasting or cooking class ready, and book everything flexible. Save desert tours for clear, dry mornings. 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 September Activities Worth Booking
Beyond the headliners, a few experiences round out a September trip especially well, even if they don't have a dedicated guide on this site yet:
- Sportfishing charter on a calm day: marlin and dorado are still strong, and the empty water and low rates are a bonus.
- Cabo Pulmo snorkel or dive day trip: the warmest water of the year makes the marine park's reefs superb when conditions allow.
- Spa and resort day: September's low rates make a higher-end property with a great spa and pools a smart, weather-proof splurge.
- Air-conditioned cultural outings: a tequila tasting or a leisurely meal in San José del Cabo's historic center are reliable rainy-afternoon options.
- Sea lion swim at Los Islotes (La Paz): the colony swim reopens in September after its summer pupping closure, weather permitting.
- Sunset catamaran cruise around El Arco: warm, settling September evenings make for excellent Land's End sunsets on the calm nights between systems.
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From Our Experience
The one thing we'd tell every September visitor is that flexibility is the whole game: the savings are the best of the year, but they only pay off if your bookings are refundable and your plans can flex around a passing storm, so spend the small effort on insurance and free-cancellation options before anything else.
Tips for Visiting Cabo San Lucas in September
- Book everything refundable. Free-cancellation hotels and tours plus travel insurance are essential in peak storm season, not optional extras.
- Watch the tropics before you travel. Systems usually give several days of warning; check forecasts in the days before your trip and stay adaptable.
- Take advantage of the prices. September is the cheapest month, so it is a good time to book a higher-end resort with great pools and a spa as a weather-proof base.
- Plan water activities for calm mornings. Between systems the sea is the warmest of the year; book early and confirm operator status the day before.
- Keep weather-proof backups ready. A tequila tasting, spa day, or relaxed meal in San José del Cabo covers a rainy afternoon.
- Confirm openings. Some restaurants and operators take their annual break in September, so check before counting on a specific spot.
- Hydrate and protect from the sun. Heat and humidity stay high; reef-safe sunscreen and water are essential on clear days.
- Visiting at a different time of year? September is the cheapest, stormiest month; our Cabo in August guide covers the lead-up, and Cabo in October covers the easing of storm season and the famous marlin tournaments. For the full picture of the season, see our Cabo in summer guide. For whales and dependable 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 September guide from long-run climate data for Los Cabos, eastern Pacific hurricane-season records, sea-temperature and sportfishing patterns for the Sea of Cortez, and the booking and pricing trends we track across local operators and hotels through the low season. Ratings reflect what actually shapes a September trip: the warmest sea of the year, the cheapest prices and lightest crowds, peak hurricane-season risk, and the wettest, most humid weather. We weighed each activity on how its real-world conditions change in September rather than on its year-round reputation. Tour recommendations point to operators with verified booking records and strong review volume, with an emphasis on free-cancellation flexibility and morning departures, which matter most during peak storm season.
Frequently Asked Questions
Is Cabo San Lucas good in September?+
It depends on your priorities. September is the cheapest, quietest month with the warmest sea of the year, so the value is unbeatable if the weather holds. But it is also peak hurricane season, the wettest and stormiest month, so it best suits flexible, budget-focused travellers who book refundable and accept weather risk.
What is the weather like in Cabo San Lucas in September?+
September is hot, humid, and the wettest month. Daytime highs average about 33°C (91°F), nights stay warm near 23°C (73°F), and rain comes as brief, heavy storms, often with sunny mornings in between. Ocean water is at its warmest of the year at 29–30°C (84–86°F).
Is September hurricane season in Cabo San Lucas?+
Yes, September is the statistical peak of eastern Pacific hurricane season, and Baja California Sur is in the zone. Most trips are fine, with brief storms rather than major systems, but the chance of a tropical storm or hurricane affecting your dates is higher than any other month. Flexible bookings and travel insurance are essential.
Is September the cheapest month in Cabo San Lucas?+
Yes. September is the cheapest month of the year, with mid-range 4-star hotels around $150/night and luxury resorts heavily discounted, plus the lowest flight prices. The low rates reflect the weather risk, so the savings come paired with peak storm season.
Is the water warm enough to swim in Cabo in September?+
Very. September water is at its warmest of the year at 29–30°C (84–86°F), bath-like and superb for swimming and snorkeling on calm days. The caveat is storm swell: as systems pass, beaches may flag red and tours may pause, so plan water time for calm mornings.
What is the best week to visit Cabo in September?+
No single week is reliably storm-free, so flexibility matters more than the calendar. The best strategy is to book refundable hotels and free-cancellation tours, buy travel insurance, and watch the tropical forecast in the days before you travel, then enjoy the year's lowest prices and emptiest beaches.
What activities are best in Cabo in September?+
On calm days, sportfishing, snorkeling, and diving shine in the warmest sea of the year, and the Los Islotes sea lion swim reopens this month. Keep a weather-proof backup like a tequila tasting or spa day ready for stormy afternoons, and save desert tours for clear, dry mornings.
Can you see whales in Cabo San Lucas in September?+
No. Humpback whale season runs mid-December through April and is over in September. The marine highlights are warm-water snorkeling and diving plus sportfishing between weather systems. Humpbacks return in mid-December.
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