Compare Irish counties
Pick two or three counties to see their rainfall, sunshine and temperatures side by side, month by month.
Galway gets 7% more rain a year than Clare (1424 mm against 1328 mm), with 1 fewer rain days and 73 more hours of sunshine. July afternoons average 19°C in Galway and 19°C in Clare; January nights 3°C and 3°C.
Rainfall by month
0 50 100 150 Galway, Jan: 110 mm Galway, Feb: 120 mm Galway, Mar: 115 mm Galway, Apr: 88 mm Galway, May: 83 mm Galway, Jun: 103 mm Galway, Jul: 116 mm Galway, Aug: 121 mm Galway, Sep: 110 mm Galway, Oct: 176 mm Galway, Nov: 134 mm Galway, Dec: 148 mm Clare, Jan: 109 mm Clare, Feb: 120 mm Clare, Mar: 111 mm Clare, Apr: 76 mm Clare, May: 91 mm Clare, Jun: 104 mm Clare, Jul: 102 mm Clare, Aug: 94 mm Clare, Sep: 122 mm Clare, Oct: 154 mm Clare, Nov: 123 mm Clare, Dec: 122 mm Mayo, Jan: 114 mm Mayo, Feb: 132 mm Mayo, Mar: 113 mm Mayo, Apr: 87 mm Mayo, May: 93 mm Mayo, Jun: 113 mm Mayo, Jul: 102 mm Mayo, Aug: 131 mm Mayo, Sep: 114 mm Mayo, Oct: 172 mm Mayo, Nov: 130 mm Mayo, Dec: 141 mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daytime high by month
0 5 10 15 Galway, Jan: 8 °C Galway, Feb: 10 °C Galway, Mar: 11 °C Galway, Apr: 13 °C Galway, May: 16 °C Galway, Jun: 18 °C Galway, Jul: 19 °C Galway, Aug: 19 °C Galway, Sep: 17 °C Galway, Oct: 14 °C Galway, Nov: 11 °C Galway, Dec: 9 °C Clare, Jan: 8 °C Clare, Feb: 10 °C Clare, Mar: 11 °C Clare, Apr: 13 °C Clare, May: 16 °C Clare, Jun: 18 °C Clare, Jul: 19 °C Clare, Aug: 19 °C Clare, Sep: 17 °C Clare, Oct: 15 °C Clare, Nov: 11 °C Clare, Dec: 9 °C Mayo, Jan: 8 °C Mayo, Feb: 9 °C Mayo, Mar: 11 °C Mayo, Apr: 13 °C Mayo, May: 15 °C Mayo, Jun: 17 °C Mayo, Jul: 18 °C Mayo, Aug: 18 °C Mayo, Sep: 17 °C Mayo, Oct: 14 °C Mayo, Nov: 11 °C Mayo, Dec: 9 °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sunshine by month
0.0 5.0 10.0 Galway, Jan: 3.9 hours a day Galway, Feb: 4.4 hours a day Galway, Mar: 5.8 hours a day Galway, Apr: 8.5 hours a day Galway, May: 10.5 hours a day Galway, Jun: 9.5 hours a day Galway, Jul: 9.2 hours a day Galway, Aug: 9.2 hours a day Galway, Sep: 7.2 hours a day Galway, Oct: 5.2 hours a day Galway, Nov: 4.0 hours a day Galway, Dec: 3.0 hours a day Clare, Jan: 3.9 hours a day Clare, Feb: 4.2 hours a day Clare, Mar: 5.9 hours a day Clare, Apr: 8.4 hours a day Clare, May: 9.8 hours a day Clare, Jun: 9.0 hours a day Clare, Jul: 8.6 hours a day Clare, Aug: 8.9 hours a day Clare, Sep: 7.1 hours a day Clare, Oct: 5.1 hours a day Clare, Nov: 4.0 hours a day Clare, Dec: 3.1 hours a day Mayo, Jan: 3.3 hours a day Mayo, Feb: 4.2 hours a day Mayo, Mar: 5.6 hours a day Mayo, Apr: 8.1 hours a day Mayo, May: 9.7 hours a day Mayo, Jun: 8.8 hours a day Mayo, Jul: 8.4 hours a day Mayo, Aug: 8.7 hours a day Mayo, Sep: 6.9 hours a day Mayo, Oct: 4.7 hours a day Mayo, Nov: 3.6 hours a day Mayo, Dec: 2.8 hours a day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Rain days by month
0 10 20 Galway, Jan: 14 days Galway, Feb: 18 days Galway, Mar: 16 days Galway, Apr: 14 days Galway, May: 16 days Galway, Jun: 17 days Galway, Jul: 17 days Galway, Aug: 17 days Galway, Sep: 15 days Galway, Oct: 20 days Galway, Nov: 17 days Galway, Dec: 17 days Clare, Jan: 15 days Clare, Feb: 18 days Clare, Mar: 15 days Clare, Apr: 14 days Clare, May: 15 days Clare, Jun: 16 days Clare, Jul: 17 days Clare, Aug: 17 days Clare, Sep: 16 days Clare, Oct: 21 days Clare, Nov: 17 days Clare, Dec: 17 days Mayo, Jan: 15 days Mayo, Feb: 18 days Mayo, Mar: 16 days Mayo, Apr: 15 days Mayo, May: 15 days Mayo, Jun: 19 days Mayo, Jul: 18 days Mayo, Aug: 20 days Mayo, Sep: 16 days Mayo, Oct: 20 days Mayo, Nov: 17 days Mayo, Dec: 18 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Figures are averages for 2021–2025 at each county town, from the ERA5 weather reanalysis via Open-Meteo. They describe typical lowland weather in each county; hills and exposed coasts are wetter and windier.