Average annual temperature is 10.6 °C
Absolute maximum temperature: 27.2 °C
Absolute minimum temperature: -4.0 °C
Number of sunny days: 87 days
Number of rainy days: 278 days
Look at detailed online map of Washington
* Weather data for Washington Ireland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.9 | 13.4 | 15.6 | 18.4 | 20.7 | 27.2 | 20.5 | 23.9 | 27.1 | 21.5 | 13.7 | 12.7 |
| Average daytime temperature (°C) | 7.9 | 9.8 | 9.8 | 12.6 | 16.8 | 20.7 | 17.9 | 18.8 | 18.6 | 14.3 | 9.6 | 8.8 |
| Average temperature (°C) | 5.5 | 7.2 | 6.8 | 8.9 | 12.7 | 16.5 | 14.7 | 15.3 | 14.8 | 11.0 | 7.0 | 6.9 |
| Average night temperature (°C) | 3.1 | 4.5 | 4.2 | 5.3 | 8.5 | 12.4 | 11.5 | 12.2 | 11.0 | 7.9 | 4.5 | 4.5 |
| Absolute minimum temperature (°C) | -3.8 | -3.1 | -1.5 | -0.1 | 4.5 | 8.4 | 8.4 | 9.1 | 3.9 | 0.1 | -1.9 | -4.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 8.2 | 9.8 | 11.9 | 14.0 | 15.9 | 16.9 | 16.4 | 14.7 | 12.7 | 10.6 | 8.7 | 7.6 |
| Daylight minimum duration (h) | 7.0 | 8.0 | 10.0 | 13.0 | 15.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 7.0 |
| Sunshine mean duration (h) | 3.5 | 3.6 | 4.1 | 7.4 | 9.7 | 11.4 | 8.2 | 7.7 | 6.6 | 4.8 | 4.5 | 2.1 |
| Precipitation (mm) | 81 | 17 | 136 | 80 | 40 | 70 | 160 | 93 | 151 | 149 | 61 | 103 |
| Sunny days | 8 | 15 | 4 | 5 | 16 | 12 | 1 | 0 | 7 | 6 | 8 | 5 |
| Rainy days | 23 | 13 | 27 | 25 | 15 | 18 | 30 | 31 | 23 | 25 | 22 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Washington during the most sunny months:
Months with the longest average daylight duration in Washington:
The largest precipitation sum in Washington is at