Cabo San Lucas & Los Cabos Weather by Month (2026)

Cabo San Lucas has one of the most reliable climates in Mexico: on average it rains on only about 14 days a year, humidity is low for most of the calendar, and in this desert-meets-ocean setting the big weather questions are how hot it will be and whether you're traveling in hurricane season. This month-by-month guide uses the official climate averages to walk you through temperatures, rain, water temps, whale season and the trade-offs of each part of the year, so you can pick the dates that fit your trip.

Cabo's Two Seasons in a Nutshell

Cabo really has two seasons. The dry season runs from November through June: sunny, low-humidity days and comfortable nights, with almost no rain from March to June. This is peak season, and for good reason. The humid, rainy season runs from July through October, hottest and stickiest in August and September — Cabo's rainiest months — when the ocean is bath-warm but the tropical-storm risk is real. Neither season is bad; they simply suit different travelers.

Month-by-Month Weather

Average daily high and low, and average monthly rain, at the Cabo San Lucas weather station (SMN normals, 1991–2020):

• January: high 80°F (26.6°C) · low 55°F (12.8°C) · rain 6 mm
• February: high 81°F (27.1°C) · low 55°F (12.9°C) · rain 5 mm
• March: high 83°F (28.5°C) · low 57°F (13.9°C) · rain 1 mm
• April: high 86°F (30.1°C) · low 60°F (15.4°C) · rain 0 mm
• May: high 90°F (32.1°C) · low 62°F (16.5°C) · rain 0 mm
• June: high 91°F (32.6°C) · low 65°F (18.5°C) · rain 0 mm
• July: high 94°F (34.4°C) · low 72°F (22.4°C) · rain 8 mm
• August: high 94°F (34.7°C) · low 75°F (23.8°C) · rain 85 mm
• September: high 93°F (33.7°C) · low 74°F (23.3°C) · rain 110 mm
• October: high 92°F (33.4°C) · low 70°F (21.2°C) · rain 25 mm
• November: high 87°F (30.4°C) · low 64°F (17.5°C) · rain 17 mm
• December: high 81°F (27.4°C) · low 57°F (14.0°C) · rain 7 mm

January & February

Peak dry season. Average highs are around 80°F (27°C), evenings cool to about 55°F (13°C) — January is the coolest month — and rain is close to zero. Water temps are on the cool side, around 70–72°F (21–22°C), so swimming is refreshing rather than warm. This is prime whale-watching time and comfortable for hiking and full days outdoors.

March & April

Many locals' favorite months. Warm, dry and sunny, with highs climbing from 83°F (28.5°C) in March to 86°F (30°C) in April, gentle nights around 57–60°F, and virtually no rain. The water starts warming, crowds are lively but not unbearable, and whale season runs through March into April. If you want the best all-around weather of the year, this is it.

May

The tail end of the dry season and a sweet spot. Highs average 90°F (32°C) with nights near 62°F (16.5°C), humidity stays low and it essentially doesn't rain, all before the summer heat and humidity fully arrive. Excellent value and excellent conditions.

June & July

Summer heat settles in. Highs average 91°F (32.6°C) in June and 94°F (34.4°C) in July, and nights warm up to about 72°F by July as humidity builds. June is still almost rain-free; July brings the occasional shower, though serious storms are uncommon this early. The ocean warms into the 80s°F, and mornings and evenings are the time to be active.

August & September

The hottest, most humid and most storm-prone stretch of the year. Highs average about 94°F (34.7°C) in August and 93°F (33.7°C) in September, with nights that barely drop below 74°F, and the humidity makes midday genuinely hot. These are also Cabo's rainiest months — about 85 mm in August and 110 mm in September on average, usually in short heavy bursts on a handful of days. The eastern Pacific hurricane season peaks in late August. The upside: the warmest water of the year (about 82–84°F / 28–29°C), the lowest prices and the fewest crowds. If you travel now, watch the forecast and consider travel insurance.

October

A transition month that gets better as it goes. October is still hot — the average high is 92°F (33.4°C) with nights around 70°F — and early October carries some hurricane-season risk, but rain drops to about 25 mm for the month and the air dries out as it goes on. The water stays warm. The back half of October can be a hidden gem: warm, quiet and increasingly reliable.

November & December

This is when the summer heat breaks. November's average high falls to 87°F (30.4°C) with nights near 64°F (17.5°C), and by December highs are around 81°F (27.4°C) with cool 57°F evenings — bring a light layer. Humidity is low and sunshine abundant. Whale season begins in December, and the holiday period brings a festive buzz and higher prices. Book early if you want to be here for the holidays.

Water Temperatures & Whale Season

Ocean temperatures swing more than the air does. Expect cooler water around 70–72°F (21–22°C) in winter, warming steadily through spring and peaking around 82–84°F (28–29°C) in late summer. If bath-warm water for snorkeling and swimming is your priority, aim for August through October.

Whale season is a headline reason to visit in winter. Gray and humpback whales migrate to Baja's waters roughly from December through April, with peak sightings usually in January and February. Watching them breach offshore is one of Cabo's signature experiences. Our full Cabo whale watching guide covers the season, tours, and tips in detail.

So, When Should You Visit?

The answer depends on what you want out of the trip.

• Best overall weather: March through May, warm, dry, sunny, and reliable.
• Whale watching: December through April, with January and February at the peak.
• Warmest water: August through October, ideal for swimming and snorkeling.
• Best value and fewest crowds: late spring and the shoulder of late October, when prices dip but the weather still delivers.
• Weather to plan around: August and September, the hottest, most humid, and most storm-prone months.

For a deeper look at crowds, prices, and events alongside the climate, see our companion guide to the best time to visit Cabo San Lucas.

Averages are Mexico's National Weather Service (SMN) climate normals for 1991–2020 at the Cabo San Lucas station; hurricane-season dates are from the US National Hurricane Center. Checked September 30, 2026. Any single year can run hotter or wetter.

Make Every Season Cheaper

No matter which month you choose, Cabo is not a cheap destination once you add up meals, tours, and boat trips. That is where a Baja Pass for Los Cabos pays for itself: 2-for-1 restaurants and activities and 50% off yacht charters and sportfishing, all year round. Whether you come for whale season in February or warm water in September, the savings stack up fast. Join Baja Pass and turn your trip's weather window into a better deal.