Cabo San Lucas, Mexico skyline

Cabo San Lucas Weather in August

Typical August weather in Cabo San Lucas, Mexico, based on 2006–2025 climate averages.

In August, Cabo San Lucas averages a high of 31.9°C (89.4°F) and a low of 26.6°C (79.9°F), with about 8 rainy days (68 mm of rain) and 11.8 hours of sunshine a day.

Avg high

31.9°C (89.4°F)

Avg low

26.6°C (79.9°F)

Rainfall

68 mm (2.7 in)

Rainy days

8 days

Sunshine

11.8 h / day

Humidity

72%

August vs the rest of the year

No month in Cabo San Lucas is warmer than August; for rain it is the 2nd wettest month.

MonthAvg highvs AugustRainRainy days
January25.1°C (77.2°F)−6.8°C (−12.2°F)4 mm1
February25.4°C (77.7°F)−6.5°C (−11.7°F)5 mm1
March26.6°C (79.9°F)−5.3°C (−9.5°F)1 mm0
April27.7°C (81.9°F)−4.2°C (−7.6°F)0 mm0
May29°C (84.2°F)−2.9°C (−5.2°F)1 mm0
June29.8°C (85.6°F)−2.1°C (−3.8°F)11 mm1
July31.7°C (89.1°F)−0.2°C (−0.4°F)20 mm4
August31.9°C (89.4°F)—68 mm8
September31°C (87.8°F)−0.9°C (−1.6°F)110 mm9
October30.9°C (87.6°F)−1°C (−1.8°F)38 mm3
November28.7°C (83.7°F)−3.2°C (−5.8°F)13 mm1
December26.2°C (79.2°F)−5.7°C (−10.3°F)8 mm1

What August feels like in Cabo San Lucas

August falls in Cabo San Lucas's wet season — the rainfall numbers rise clearly above the dry months. Expect proper heat in the afternoon — slow down between noon and four. Nights bring little relief: even the coolest hour of the night stays very warm. The air carries some moisture, so hot spells feel a little sticky.

Rain in Cabo San Lucas in August

It is a changeable month: rain comes about one day in 4, with dry spells in between. Each rainy day adds about 8.5 mm (0.3 in), a proper wetting rather than a sprinkle. That is close to Cabo San Lucas's typical rain per wet day for the whole year (about 9.6 mm). It is among the three wettest months of the year.

How August compares to the rest of the year

August is the warmest month of the year in Cabo San Lucas. It is about as warm as July, with 48 mm more rain. The cooling trend carries on into September. The next month's average high: 31°C (87.8°F).

Who August suits

  • Sightseeing: a good fit — comfortable enough to explore on foot all day.
  • Parks & outdoor: less ideal — afternoons are too warm to linger outside.

Tips for visiting Cabo San Lucas in August

Rain Protection

A packable rain jacket saves the day on showery afternoons.

Sun Protection

Sunscreen, a hat and sunglasses; light breathable clothes.

Quick questions

How warm is Cabo San Lucas in August?

Afternoons average 31.9°C (89.4°F) and nights about 26.6°C (79.9°F) — hot by most people's standards. It is the warmest month of the year.

Does it rain a lot in Cabo San Lucas in August?

Quite a lot — 68 mm spread over about 8 days.

What should I wear in Cabo San Lucas in August?

Pack rain protection and sun protection. There is little need to change for the evening.

Is August or September better for visiting Cabo San Lucas?

August, narrowly: it ranks #11 of 12 among Cabo San Lucas's months, against #12 for the other. September has more rainy days.

Is August a good time to visit Cabo San Lucas?

Good

Good — warm to hot days, some rainy days (about 8), plenty of sunshine (11.8 h a day). Within Cabo San Lucas's own year, August ranks #11 of 12 — one of the least comfortable months.

August in other Mexico cities

Drier places in August

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Cabo San Lucas weather by month.