Average annual temperature is 16.4 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 176 days
Number of rainy days: 188 days
Number of snow days: 1 day
Look at detailed online map of Westbrook
* Weather data for Westbrook 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) | 20.8 | 25.5 | 25.1 | 27.3 | 30.3 | 34.8 | 35.6 | 35.4 | 32.2 | 29.9 | 25.8 | 20.6 |
| Average daytime temperature (°C) | 12.9 | 15.9 | 17.0 | 20.5 | 26.0 | 29.6 | 31.4 | 30.7 | 28.6 | 23.1 | 17.4 | 13.0 |
| Average temperature (°C) | 8.2 | 10.2 | 11.2 | 14.7 | 19.6 | 23.3 | 25.4 | 24.9 | 22.4 | 17.3 | 11.3 | 7.6 |
| Average night temperature (°C) | 4.6 | 6.2 | 6.6 | 9.8 | 14.3 | 17.8 | 20.6 | 20.5 | 17.2 | 12.5 | 6.7 | 3.6 |
| Absolute minimum temperature (°C) | -4.0 | -5.0 | -5.4 | 3.9 | 5.4 | 13.4 | 15.7 | 15.4 | 12.2 | 2.9 | -4.5 | -4.7 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.1 | 6.1 | 8.2 | 9.0 | 11.1 | 11.6 | 10.9 | 9.8 | 10.5 | 8.4 | 7.5 | 6.9 |
| Precipitation (mm) | 187 | 154 | 138 | 127 | 87 | 96 | 123 | 195 | 34 | 10 | 46 | 101 |
| Sunny days | 10 | 11 | 18 | 15 | 9 | 14 | 6 | 12 | 16 | 22 | 22 | 21 |
| Rainy days | 20 | 17 | 13 | 15 | 22 | 16 | 25 | 19 | 14 | 9 | 8 | 10 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Westbrook during the most sunny months:
The largest precipitation sum in Westbrook is at