Climate trends at San Diego (1940–2025)
San Diego, located in the United States, has experienced notable climate changes over the past several decades. With a population of over 3 million, the city is monitored by multiple weather stations, including the San Diego International Airport. The data from these stations allows us to observe trends and changes in climate, which are crucial for understanding the broader impacts of climate change.
Trend Summary
Between the periods of 1940–1949 and 2016–2025, San Diego's average temperature has increased from 17.08°C to 18.28°C, marking a significant rise of 1.21°C. This trend reflects a broader pattern of warming observed in many regions globally.
In recent decades, the mean temperature from 2015 to 2024 is recorded at 18.47°C, which is indicative of ongoing warming trends. Compared to the national average annual temperature of 15.02°C from 1991–2020, San Diego remains significantly warmer.
Climate Change Impacts
The increasing temperatures in San Diego may lead to heightened risks of drought and heat waves, which can affect both the environment and the population. As climate change progresses, it is essential to monitor these trends closely to prepare for potential impacts on water supply, agriculture, and public health.
Comparison vs National Benchmark and Paris
San Diego's average temperature is notably higher than the national benchmark, which stands at 15.02°C for the top 500 cities in the US from 1991–2020. Additionally, the city's temperatures are 5.35°C higher than those recorded in Paris, highlighting the regional differences in climate impacts.
Top-5 Warm Years
- 2014: 19.74°C
- 2015: 19.70°C
- 1984: 19.56°C
- 1981: 19.49°C
- 1983: 19.44°C
The record coldest temperature in San Diego was observed in 1948, at 16.26°C.
Learn More
For more detailed data, you can access the raw data in CSV format or JSON format. Explore further using our interactive map.