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San Jose is projected to experience frequent heatwaves in the coming decades, presenting serious challenges for residents and local infrastructure. Rising global temperatures will lead to increased intensity and frequency of these extreme heat events. Consequently, vulnerable populations, such as the elderly and individuals with pre-existing medical conditions, face heightened health risks. Poor air quality exacerbated by high temperatures can further worsen public health outcomes, while the urban heat island effect may deepen these vulnerabilities. The increasing demand for cooling during heatwaves could strain energy resources, increasing the potential for power outages. Additionally, these climate challenges pose risks to local ecosystems and agriculture, which are vital to the region's economy. It is essential to recognize that technology-enabled climate resilience solutions have not yet been documented for San Jose, highlighting a critical gap in our understanding of the city's climate adaptation strategies.

Hazard Outlook

How will San Jose's projected climate hazards compare to other cities under a 3.0°C future warming scenario?

Elevation

30th percentile Elevated exposure

At 29 m elevation, San Jose faces elevated risk from coastal flooding and sea level rise.

San Jose
-8.0 Lower → Higher 4k

Maximum Temperature

33rd percentile Moderate exposure

San Jose's projected maximum temperature of 8.9°C is near the median of cities globally under a 3.0°C warming scenario.

San Jose
5.0 Cooler → Hotter 13

Heavy Rainfall Days

46th percentile Moderate exposure

With 10 days of heavy rainfall expected, San Jose ranks near the median of cities for extreme precipitation events.

San Jose
0.0 Fewer → More 36

Maximum Rainfall

43rd percentile Moderate exposure

San Jose's projected maximum rainfall of 10 mm is near the median of cities globally.

San Jose
0.0 Lower → Higher 35

Longest Heatwave

3rd percentile Lower exposure

San Jose may experience heatwaves lasting up to 2 days, lower than most other cities.

San Jose
0.0 Shorter → Longer 92

Exposure Summary

Elevation
Max Temp
Heavy Rain
Max Rain
Heatwave

Adaptation Priorities

San Jose faces elevated exposure to elevation. These areas may warrant priority attention in adaptation planning.

Data source: Climate projections from the IPCC AR6 scenario analysis. See our methodology for details on how we process and interpret this data.

Deployed Solutions

Deployed climate adaptation technologies identified in San Jose.

No solutions have been documented for San Jose.

This is an archived snapshot of the database.

Recommended Solutions

Proven solutions from similar cities that could help diversify San Jose's resilience portfolio