San Jose weather in 2025
San Jose weather in 2025, with 365 daily observations from Open-Meteo archive data.
Interactive graph
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Use the graph view to inspect 2025 alongside other available years for San Jose.
Year summary
In 2025, San Jose averaged 22.2 C for daily highs and 10.8 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2025 with the 2023-2025 archive baseline. The 2025 average daily high was 0.0 C from that baseline, and total precipitation was -135.5 mm from the baseline total.
The warmest month was August, with an average high of 29.1 C, while January had the lowest average low at 4.4 C.
The wettest month was February, totaling 152.1 mm. The hottest day reached 36.2 C on August 31, 2025.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 4.4 | 15.3 | 10.9 | 31 |
| February | 6.9 | 16.6 | 152.1 | 28 |
| March | 7.9 | 17.4 | 90.8 | 31 |
| April | 10.0 | 22.2 | 10.3 | 30 |
| May | 12.0 | 25.7 | 3.9 | 31 |
| June | 13.2 | 27.2 | 0.1 | 30 |
| July | 14.0 | 27.3 | 0.4 | 31 |
| August | 15.2 | 29.1 | 2.3 | 31 |
| September | 16.5 | 28.8 | 2.7 | 30 |
| October | 12.2 | 23.3 | 32.7 | 31 |
| November | 9.7 | 18.2 | 113.3 | 30 |
| December | 7.5 | 14.6 | 95.8 | 31 |
Daily records in 2025
| Record | Date | Value |
|---|---|---|
| Hottest day | August 31, 2025 | 36.2 C |
| Coldest night | February 10, 2025 | -1.1 C |
| Wettest day | February 13, 2025 | 56.5 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.