May 29, 2025 - News
San Diego summers, like the rest of the U.S., are getting hotter
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Don't let June Gloom mislead you: summers are getting hotter in San Diego — and in the rest of the U.S.
Why it matters: Hotter summers are one of the clearest ways we experience climate change.
- They also present health risks for vulnerable groups like children, pregnant women, the elderly and homeless people.
Driving the news: Average summer temperatures between 1970 and 2024 rose in 97% of the 242 cities analyzed in a new report from Climate Central, a climate research group.
- Among those cities, summers are now 2.6°F hotter on average.
- The analysis uses NOAA data and defines "summer" as June through August.
Zoom in: San Diego is getting even hotter, with the average summer temperature warming by 3.2°F since 1970.
What's next: Summer 2025 is likely to be hotter than normal for much of the country, per the National Weather Service's seasonal outlook.
- That includes San Diego and the rest of southern California, per NWS.