Average annual temperature is 15.4 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -7.8 °C
Number of sunny days: 184 days
Number of rainy days: 181 days
Look at detailed online map of Potomac Beach
* Weather data for Potomac Beach 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) | 19.3 | 25.4 | 25.6 | 31.5 | 28.9 | 32.0 | 37.1 | 35.1 | 35.8 | 29.2 | 27.0 | 18.9 |
| Average daytime temperature (°C) | 11.5 | 13.5 | 14.6 | 22.9 | 22.7 | 27.7 | 31.6 | 30.2 | 26.9 | 22.0 | 14.5 | 11.9 |
| Average temperature (°C) | 7.1 | 8.2 | 8.9 | 16.3 | 17.4 | 22.0 | 25.9 | 24.8 | 21.9 | 16.3 | 9.1 | 7.0 |
| Average night temperature (°C) | 3.9 | 4.1 | 4.5 | 11.2 | 13.1 | 17.5 | 21.8 | 20.7 | 17.8 | 12.0 | 5.1 | 3.4 |
| Absolute minimum temperature (°C) | -0.9 | -7.8 | -2.5 | 3.7 | 8.1 | 13.4 | 19.0 | 17.2 | 12.3 | 6.7 | -4.2 | -2.2 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 5.5 | 7.0 | 7.9 | 9.3 | 10.8 | 11.1 | 11.9 | 11.1 | 8.7 | 8.8 | 7.8 | 5.9 |
| Precipitation (mm) | 87 | 71 | 35 | 134 | 56 | 97 | 141 | 59 | 98 | 42 | 52 | 179 |
| Sunny days | 15 | 17 | 17 | 16 | 16 | 9 | 9 | 10 | 15 | 19 | 23 | 18 |
| Rainy days | 16 | 11 | 14 | 14 | 15 | 21 | 22 | 21 | 15 | 12 | 7 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Potomac Beach during the most sunny months:
The largest precipitation sum in Potomac Beach is at