Average annual temperature is 10.8 °C
Absolute maximum temperature: 26.0 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 53 days
Number of rainy days: 311 days
Number of snow days: 1 day
Look at detailed online map of Mayo County
* Weather data for Mayo County 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) | 12.3 | 13.1 | 13.9 | 18.0 | 22.3 | 25.8 | 21.6 | 22.4 | 26.0 | 20.0 | 13.0 | 12.4 |
| Average daytime temperature (°C) | 8.2 | 10.0 | 9.6 | 12.6 | 16.3 | 20.9 | 16.9 | 18.0 | 17.9 | 13.8 | 10.1 | 8.9 |
| Average temperature (°C) | 5.9 | 7.8 | 6.8 | 9.2 | 12.4 | 16.6 | 14.4 | 15.1 | 14.5 | 11.1 | 7.8 | 7.3 |
| Average night temperature (°C) | 3.7 | 5.1 | 3.9 | 5.7 | 8.5 | 12.5 | 11.6 | 12.4 | 11.3 | 8.6 | 5.4 | 5.4 |
| Absolute minimum temperature (°C) | -2.9 | -1.8 | -1.8 | -0.2 | 4.8 | 8.2 | 8.5 | 9.5 | 5.8 | 2.8 | -1.7 | -1.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 12.0 | 15.0 | 16.0 | 17.0 | 17.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 8.1 | 9.8 | 11.9 | 14.0 | 16.0 | 17.0 | 16.5 | 14.8 | 12.7 | 10.6 | 8.6 | 7.5 |
| 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) | 2.7 | 2.9 | 4.3 | 6.7 | 8.3 | 10.9 | 8.2 | 8.5 | 6.5 | 4.3 | 4.0 | 2.2 |
| Precipitation (mm) | 106 | 59 | 158 | 100 | 45 | 127 | 178 | 139 | 115 | 158 | 127 | 180 |
| Sunny days | 5 | 7 | 4 | 4 | 10 | 8 | 0 | 1 | 2 | 3 | 6 | 3 |
| Rainy days | 25 | 21 | 27 | 26 | 21 | 22 | 31 | 30 | 28 | 28 | 24 | 28 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Mayo County during the most sunny months:
Months with the longest average daylight duration in Mayo County:
The largest precipitation sum in Mayo County is at