Historical weather in San Diego, United States
San Diego weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
Interactive graph
Explore San Diego in the interactive graph
Open the full graph with San Diego already loaded, then add more cities to compare.
Weather summary
Across 2023-2025, San Diego averaged 20.7 C for daily highs and 13.0 C for daily lows across 1096 daily observations.
The warmest month was August 2024, with an average high of 25.5 C, while February 2023 had the lowest average low at 6.8 C.
The wettest month was January 2023, totaling 182.3 mm of precipitation.
The hottest day reached 34.2 C on September 8, 2024; the coldest night fell to 2.8 C on January 8, 2024.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | 8.1 | 15.8 | 182.3 | 31 |
| 2023 | February | 6.8 | 15.9 | 76.3 | 28 |
| 2023 | March | 8.8 | 15.2 | 130.0 | 31 |
| 2023 | April | 10.9 | 17.8 | 5.3 | 30 |
| 2023 | May | 13.9 | 19.0 | 9.9 | 31 |
| 2023 | June | 15.3 | 20.5 | 5.8 | 30 |
| 2023 | July | 17.4 | 24.2 | 0.0 | 31 |
| 2023 | August | 18.4 | 25.0 | 40.8 | 31 |
| 2023 | September | 17.6 | 23.8 | 13.9 | 30 |
| 2023 | October | 14.6 | 24.3 | 3.9 | 31 |
| 2023 | November | 10.8 | 21.9 | 57.1 | 30 |
| 2023 | December | 9.4 | 19.3 | 48.4 | 31 |
| 2024 | January | 8.0 | 17.1 | 96.1 | 31 |
| 2024 | February | 9.4 | 16.3 | 144.9 | 29 |
| 2024 | March | 9.9 | 17.2 | 107.4 | 31 |
| 2024 | April | 11.0 | 18.7 | 9.7 | 30 |
| 2024 | May | 13.5 | 19.6 | 1.3 | 31 |
| 2024 | June | 15.8 | 22.2 | 0.0 | 30 |
| 2024 | July | 18.1 | 24.5 | 0.0 | 31 |
| 2024 | August | 18.1 | 25.5 | 0.2 | 31 |
| 2024 | September | 17.5 | 25.1 | 1.5 | 30 |
| 2024 | October | 14.2 | 23.6 | 1.5 | 31 |
| 2024 | November | 9.9 | 20.3 | 3.8 | 30 |
| 2024 | December | 9.1 | 18.2 | 1.4 | 31 |
| 2025 | January | 8.1 | 18.0 | 21.1 | 31 |
| 2025 | February | 10.2 | 18.9 | 31.8 | 28 |
| 2025 | March | 10.1 | 17.3 | 99.1 | 31 |
| 2025 | April | 11.3 | 18.8 | 11.9 | 30 |
| 2025 | May | 14.0 | 21.0 | 10.2 | 31 |
| 2025 | June | 15.7 | 22.3 | 6.7 | 30 |
| 2025 | July | 16.8 | 23.3 | 0.0 | 31 |
| 2025 | August | 17.8 | 25.4 | 13.0 | 31 |
| 2025 | September | 18.6 | 25.3 | 46.7 | 30 |
| 2025 | October | 14.5 | 23.5 | 56.7 | 31 |
| 2025 | November | 12.2 | 20.1 | 97.6 | 30 |
| 2025 | December | 10.7 | 19.8 | 45.9 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | September 8, 2024 | 34.2 C |
| Coldest night | January 8, 2024 | 2.8 C |
| Wettest day | January 22, 2024 | 57.8 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.