September in Cabo San Lucas — straight from my icabos3 station (2020–2025):
This is the muggiest month of the year… and often the wettest.
Temperatures:
– Days generally in the mid to upper 90s
– Nights staying warm in the 70s
Rain? Now it has a real seat at the table.
Some years brought under an inch.
Others pushed well over 3–4 inches.
That’s a big jump from the earlier months, and you feel it.
Humidity stays high, the landscape starts greening up, and the whole place can feel a little more tropical.
Important station note:
That late August 2025 chubasco/lightning event briefly messed with my temperature sensor (no, 107.8°F was not reality 😄). Rain and wind data remained reliable.
Wind overall isn’t the story this time of year — moisture is.
ENSO note (simple + real):
Neutral conditions support a pretty typical late-summer pattern. If El Niño develops, September–October is when broader ocean patterns can matter more, but local outcomes are always more nuanced than headlines suggest.
Bottom line: hotter, muggier, greener… and often the wettest month in Cabo.
I’ll keep going month by month with my actual data and screenshots.
What do you associate most with September in Cabo — summer rains, storm watching, or that post-rain desert smell?
Warm nights, tropical-feeling air, and often the wettest month of the year.
This is where rainfall finally becomes more than an occasional cameo.
And yes — if you saw a suspicious 107.8°F in my data, that was a wet sensor, not the apocalypse 😄
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