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If you booked a March vacation to Cabo San Lucas, you likely packed a light sweater for the evenings and prepared for perfectly mild, breezy 75-degree weather. After all, that is exactly what the historical averages dictate.

But if you are landing at SJD this week, you can leave that sweater in your suitcase.

According to a new report, the entire state of Baja California Sur is currently experiencing a massive, unseasonal heatwave. The first week of March has completely shattered the temperature records of the last four years, catching both locals and tourists completely off guard.

If you are currently sitting by a resort pool or packing for an upcoming flight, here is exactly what the weather looks like right now and how to adjust your vacation plans.

The Record-Breaking Numbers

The National Meteorological Service (SMN) has confirmed that the southern half of the peninsula is baking.

• The Local Data: This week, Los Cabos is seeing daytime highs soaring to 30 degrees Celsius (roughly 86 degrees Fahrenheit), with nighttime lows only dropping to 18 degrees Celsius (64 degrees Fahrenheit).
• The Historical Context: To understand how unusual this is, you have to look at the last few years. On this exact same week in 2025, the high was a cool 21°C (70°F). In 2024 and 2023, it hovered around 22°C (71°F). You have to go all the way back to 2022 to find temperatures that even come close to what Cabo is experiencing right now.
• The State-Wide Trend: It isn’t just Los Cabos. The capital city of La Paz is hitting 33°C (91°F), and the inland municipality of Comondú is facing an oppressive 38°C (100°F).

The Immediate Forecast for Cabo San Lucas

While the broader Mexican news is reporting on the extreme 30°C+ highs across the municipality, the hyper-local, real-time data for the immediate Cabo San Lucas area (specifically where the resorts are located) shows things are slightly more manageable, but still significantly warmer than average.

According to the official Google Weather forecast for Cabo San Lucas specifically:

• Today (Tuesday, March 3): Sunny with a high of 75°F and a low of 70°F.
• Wednesday, March 4: Sunny with a high of 76°F and a low of 70°F.
• Thursday, March 5: Sunny with a high of 76°F and a low of 69°F.
• The Weekend: Temperatures will slightly cool down by Friday (High 74°F) and hold steady in the low 70s through the weekend with periodic clouds.

How To Adjust Your Vacation

While 80-degree weather sounds perfect on paper, the intensity of the Baja sun—especially when it arrives weeks earlier than expected—can be incredibly draining. Here is how to adjust your plans.

• Rethink Your Excursions: If you booked a high-exertion activity like an ATV desert tour or a hike into Fox Canyon, you need to shift your schedule. Do not attempt these activities at 1:00 PM. Reschedule for the earliest possible morning time slot to avoid the peak solar radiation.
• Aggressive Hydration: As we frequently warn travelers, the combination of resort alcohol and desert heat is a recipe for severe dehydration. You cannot rely on local tap water. You must aggressively hydrate with sealed, bottled water (ideally mixed with an electrolyte packet) throughout the day.
• Watch The UV Index: Even on the days when the temperature dips slightly, the UV index remains a high 7 or 8. The sun will burn you much faster here than in the United States. Reapply reef-safe sunscreen constantly.

The Bottom Line

The “cool breezes” of a typical Cabo March are currently taking a hiatus. If you are arriving this week, expect mid-summer heat in the middle of spring.

Drink plenty of bottled water, stay under the shade of a beach umbrella during the midday hours, and enjoy the unexpected burst of summer.