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Comment by acwan93 | Hacker News Reader

You’re correct that LA is usually hot (95F+) this time of year, but the humidity is what’s abnormal. The dew point in Disneyland was higher than in Disney World yesterday due to a tropical storm that dissipated west of the LA basin.

More tropical storms are approaching LA and that’s increasing humidity is why it’s sweltering.

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A separate LA Times article explained that the humidity is due to lingering effects of a recent hurricane/tropical storm.

"Forecasters attributed the punishing humidity to the remnants of Tropical Storm Iselle moving over the state, as well as unusually warm ocean temperatures due to a combination of a months-long marine heat wave, a powerful El Niño and climate change.

"Dew points in the Los Angeles Basin have been “really high,” hovering around 70 degrees in many places, with a few coastal areas like Redondo Beach and Torrance reaching a dew point of 73 to 75 on Friday, said Ryan Kittell, meteorologist with the National Weather Service in Oxnard. The metric measures the moisture content in the air."

https://www.latimes.com/california/story/2026-08-28/forget-f...

The sea surface temperature anomaly is indeed pretty high right now near the Los Angeles and San Diego coast.

Exactly! What a strange about what’s going on in the LA basin right now is the extremely high humidity for this time of year. A 69° dewpoint is unheard of in this region. And this is what’s associated with the El Niño and associated with climate change.

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