Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: 1.4 °C
Number of sunny days: 253 days
Number of rainy days: 112 days
Look at detailed online map of City of Millbrae
* Weather data for City of Millbrae 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) | 17.0 | 17.5 | 18.4 | 26.1 | 25.0 | 23.1 | 28.8 | 30.1 | 25.1 | 34.4 | 24.0 | 17.7 |
| Average daytime temperature (°C) | 13.1 | 12.8 | 12.4 | 15.5 | 16.6 | 18.6 | 21.7 | 22.8 | 21.1 | 22.9 | 17.8 | 14.7 |
| Average temperature (°C) | 9.6 | 7.9 | 8.7 | 10.6 | 12.4 | 13.9 | 15.6 | 17.0 | 16.2 | 16.3 | 13.0 | 11.2 |
| Average night temperature (°C) | 6.9 | 4.3 | 6.0 | 7.2 | 9.6 | 10.9 | 11.6 | 13.5 | 13.1 | 12.2 | 9.6 | 8.5 |
| Absolute minimum temperature (°C) | 1.7 | 1.4 | 2.7 | 3.6 | 7.1 | 8.9 | 10.1 | 11.9 | 11.4 | 6.8 | 5.3 | 4.9 |
| 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 | 14.5 | 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) | 6.3 | 7.8 | 8.2 | 11.1 | 10.7 | 12.1 | 12.4 | 11.5 | 10.6 | 9.5 | 8.0 | 6.0 |
| Precipitation (mm) | 288 | 108 | 238 | 12 | 46 | 0 | 0 | 1 | 3 | 6 | 90 | 160 |
| Sunny days | 12 | 14 | 8 | 25 | 21 | 27 | 31 | 28 | 26 | 26 | 20 | 15 |
| Rainy days | 19 | 14 | 23 | 5 | 10 | 3 | 0 | 3 | 4 | 5 | 10 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit City of Millbrae during the most sunny months:
The largest precipitation sum in City of Millbrae is at