Average annual temperature is 15.2 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: 1.5 °C
Number of sunny days: 257 days
Number of rainy days: 108 days
Look at detailed online map of City of Sunnyvale
* Weather data for City of Sunnyvale United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 18.9 | 17.6 | 21.7 | 30.8 | 29.3 | 32.0 | 36.9 | 35.0 | 30.8 | 35.8 | 25.7 | 19.0 |
| Average daytime temperature (°C) | 14.3 | 13.9 | 14.6 | 19.7 | 22.2 | 26.1 | 30.4 | 30.7 | 26.9 | 26.3 | 19.9 | 16.0 |
| Average temperature (°C) | 10.0 | 8.8 | 9.8 | 12.9 | 15.6 | 18.1 | 21.1 | 21.9 | 19.3 | 18.6 | 14.0 | 11.8 |
| Average night temperature (°C) | 7.0 | 5.0 | 6.3 | 8.0 | 10.8 | 12.7 | 14.4 | 15.7 | 13.9 | 13.3 | 9.4 | 8.3 |
| Absolute minimum temperature (°C) | 2.4 | 1.5 | 1.5 | 3.3 | 6.8 | 9.3 | 12.5 | 12.7 | 10.6 | 5.3 | 4.3 | 4.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.0 | 7.8 | 7.6 | 11.0 | 11.1 | 12.8 | 13.3 | 12.4 | 11.0 | 9.9 | 8.3 | 6.2 |
| Precipitation (mm) | 278 | 105 | 212 | 3 | 24 | 0 | 0 | 0 | 4 | 3 | 68 | 135 |
| Sunny days | 11 | 14 | 10 | 24 | 23 | 29 | 30 | 29 | 25 | 26 | 21 | 15 |
| Rainy days | 20 | 14 | 21 | 6 | 8 | 1 | 1 | 2 | 5 | 5 | 9 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit City of Sunnyvale during the most sunny months:
The largest precipitation sum in City of Sunnyvale is at