What is the weather like in August in Cabo San Lucas? Heat, Rain & Humidity

August in Cabo San Lucas — straight from my icabos3 station (2020–2025):

Okay… now the air is legally soup.

This is peak heat, peak humidity, and the month Cabo starts feeling truly tropical.

Temperatures:
– Days generally in the upper 90s (sometimes near 100°F)
– Nights staying warm in the upper 70s

Enso Cycle was La Nina

Rain? Now we’re finally talking.

Enso Cycle was La Niña

Compared with earlier months, August is where the rainy-season influence really shows up. Some years bring only scattered showers… others can deliver several inches.

Enso Cycle was La Nina

Humidity is the bigger headline, though.

Dew points often run 70–75°F+, which is my technical way of saying: the air can wear you.

Enso Cycle was El Niño

Important station note:
A lightning storm in late August 2025 messed with my temperature sensor briefly (that wild 119°F spike was not Cabo turning into Mercury). Rain and wind data remained solid.

Enso Cycle was La Niña

Wind overall is lighter than spring, though storm-related gusts can be another story.

Enso Cycle was La Niña

ENSO note (keeping it simple):
Neutral conditions tend to support our typical hot, humid August feel. If El Niño develops later, its bigger effects tend to matter more as we move deeper into the season.

Bottom line: August is hotter, muggier, and noticeably wetter than the months before it.

I’ll keep going month by month with my actual data and screenshots.

How do you handle August in Cabo — live for the summer storms, or count the days until October? 😄

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