Cabo San Lucas Weather by Month: What to Expect

For a mix of warm days and low average rainfall, November is our weather-only pick for Cabo San Lucas. March and April are also good bets if you want dry conditions, while September is the wettest month in the climate averages. Expect the hottest weather from June through August.

One gap in the available data: the climate source reports air temperatures and rainfall, but not monthly sea temperatures. So the table below can help you plan for the weather on land, but it can’t tell you how warm the water will feel.

What is Cabo San Lucas weather like by month?

Use these as climate averages, not a forecast for your travel dates. Highs and lows are rounded to Fahrenheit from the source’s Celsius figures. Rainfall is shown in millimeters, as reported.

The monthly figures are based on weather reports from 2012 to 2021. The source uses La Paz for its annual weather averages and says that station is 147 km from Cabo San Lucas, so local conditions can vary. It lists August as the hottest month by average temperature and September as the wettest. Time and Date’s climate averages for Cabo San Lucas provide the underlying monthly figures.

What is the best month to visit Cabo?

For weather alone, we’d choose November. Its average high is 88°F (31°C), its average low is 66°F (19°C), and average rainfall is 5.9 mm. That’s a useful middle ground: warm days without the highest heat or the peak monthly rainfall in this data.

March and April are close alternatives if you’re prioritizing very little rain. Their monthly averages are 0.7 mm and 0.6 mm, respectively, but April’s average high reaches 91°F (33°C). Pick March for a less hot average afternoon, or April if you don’t mind more heat. These are weather recommendations, not a claim about prices, crowds, or events.

January and February suit travelers who prefer milder afternoons, though the average lows are 57°F (14°C) in both months. Pack a layer for evenings and early starts. For more help weighing the calendar, see our month-by-month guide to the best time to visit Cabo.

How does Cabo weather change through the year?

Winter is the mildest stretch in this table. January and December have average highs of 79°F (26°C), while February averages 82°F (28°C). The nights are cooler than the days, particularly in January and February, so don’t pack only for beach afternoons.

Spring warms up quickly. March averages 86°F (30°C), April 91°F (33°C), and May 95°F (35°C). Rainfall averages stay very low from March through May in this data. If you plan to spend hours outside, the April and May heat matters as much as the low rain totals.

June through October is the hotter part of the year. June, July, and August average highs of 100°F (38°C), and September averages 97°F (36°C). Rain rises notably in August and peaks in September, before the average drops in October. If your plans depend on long stretches outdoors, the milder months are an easier fit.

November and December bring lower average highs again. November averages 88°F (31°C), and December 79°F (26°C). If you’re choosing dates around outdoor activities, compare the heat as well as the rain rather than treating a low rainfall figure as the whole story.

What about sea temperature and swimming?

The monthly climate figures available here don’t include sea temperature, so we can’t give you a reliable month-by-month water-temperature table from these sources. Air temperature and sea temperature aren’t interchangeable. If swimming is central to your trip, check current local conditions close to your travel dates and choose a beach suited to your plans.

Also, a warm day doesn’t mean every Cabo beach is safe for swimming. Read our guide to Cabo’s swimmable beaches before picking a hotel or planning a beach day. For where to base yourself, our overview of the four Cabo areas can help match your stay to your itinerary.

What should you plan around?

Think about the trip you actually want. For a weather-first visit with warm days and low average rain, look at November, March, or April. If you’re comfortable with stronger heat, late spring and summer have much higher average daytime temperatures. September stands out for rainfall, so it’s the month to consider carefully if you want to minimize the chance of wet weather.

These are historical climate averages, not a promise for a specific week. Check a forecast before you leave, and pack for the cooler nights if you’re traveling in winter. For a practical packing checklist, see our Cabo packing list.

Quick answers

What is the best month to visit Cabo?

For weather alone, November is a good balance of warm average days and relatively little rain. March and April are also strong options if you prioritize low average rainfall.

What is Cabo San Lucas weather like by month?

Average highs range from 79°F (26°C) in January and December to 100°F (38°C) in June, July, and August. September has the highest average rainfall in the climate data.

What is the hottest month in Cabo San Lucas?

August is listed as the hottest month by average temperature, at 32°C (about 90°F). June, July, and August each have an average high of 100°F (38°C).

Does the monthly weather data include sea temperatures?

No. The climate averages used here report air temperatures and rainfall, not monthly sea temperatures. Check local conditions close to your trip if water temperature is important to your plans.

Which month is the rainiest in Cabo?

September is the wettest month in the cited climate averages, with 114.4 mm of precipitation. August is next, with 43.0 mm.