Compare Irish counties
Pick two or three counties to see their rainfall, sunshine and temperatures side by side, month by month.
Offaly gets 25% less rain a year than Galway (1064 mm against 1424 mm), with 20 fewer rain days and 42 fewer hours of sunshine. July afternoons average 19°C in Offaly and 19°C in Galway; January nights 2°C and 3°C.
Rainfall by month
0 50 100 150 Offaly, Jan: 84 mm Offaly, Feb: 87 mm Offaly, Mar: 85 mm Offaly, Apr: 72 mm Offaly, May: 88 mm Offaly, Jun: 69 mm Offaly, Jul: 99 mm Offaly, Aug: 79 mm Offaly, Sep: 99 mm Offaly, Oct: 120 mm Offaly, Nov: 90 mm Offaly, Dec: 92 mm 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 Kildare, Jan: 79 mm Kildare, Feb: 74 mm Kildare, Mar: 75 mm Kildare, Apr: 72 mm Kildare, May: 77 mm Kildare, Jun: 68 mm Kildare, Jul: 90 mm Kildare, Aug: 58 mm Kildare, Sep: 96 mm Kildare, Oct: 121 mm Kildare, Nov: 76 mm Kildare, Dec: 85 mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daytime high by month
0 5 10 15 Offaly, Jan: 7 °C Offaly, Feb: 9 °C Offaly, Mar: 11 °C Offaly, Apr: 13 °C Offaly, May: 16 °C Offaly, Jun: 18 °C Offaly, Jul: 19 °C Offaly, Aug: 19 °C Offaly, Sep: 17 °C Offaly, Oct: 14 °C Offaly, Nov: 10 °C Offaly, Dec: 8 °C 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 Kildare, Jan: 7 °C Kildare, Feb: 9 °C Kildare, Mar: 11 °C Kildare, Apr: 13 °C Kildare, May: 16 °C Kildare, Jun: 18 °C Kildare, Jul: 20 °C Kildare, Aug: 20 °C Kildare, Sep: 17 °C Kildare, Oct: 14 °C Kildare, Nov: 11 °C Kildare, Dec: 9 °C Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sunshine by month
0.0 5.0 10.0 Offaly, Jan: 3.9 hours a day Offaly, Feb: 4.0 hours a day Offaly, Mar: 6.0 hours a day Offaly, Apr: 8.4 hours a day Offaly, May: 9.8 hours a day Offaly, Jun: 9.9 hours a day Offaly, Jul: 8.6 hours a day Offaly, Aug: 8.9 hours a day Offaly, Sep: 7.1 hours a day Offaly, Oct: 5.3 hours a day Offaly, Nov: 4.1 hours a day Offaly, Dec: 3.0 hours a day 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 Kildare, Jan: 3.8 hours a day Kildare, Feb: 4.0 hours a day Kildare, Mar: 6.2 hours a day Kildare, Apr: 8.3 hours a day Kildare, May: 10.4 hours a day Kildare, Jun: 10.5 hours a day Kildare, Jul: 9.0 hours a day Kildare, Aug: 9.1 hours a day Kildare, Sep: 7.1 hours a day Kildare, Oct: 5.6 hours a day Kildare, Nov: 4.1 hours a day Kildare, Dec: 3.1 hours a day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Rain days by month
0 5 10 15 20 Offaly, Jan: 12 days Offaly, Feb: 15 days Offaly, Mar: 14 days Offaly, Apr: 14 days Offaly, May: 14 days Offaly, Jun: 14 days Offaly, Jul: 17 days Offaly, Aug: 14 days Offaly, Sep: 15 days Offaly, Oct: 17 days Offaly, Nov: 16 days Offaly, Dec: 15 days 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 Kildare, Jan: 12 days Kildare, Feb: 14 days Kildare, Mar: 14 days Kildare, Apr: 15 days Kildare, May: 15 days Kildare, Jun: 13 days Kildare, Jul: 17 days Kildare, Aug: 12 days Kildare, Sep: 14 days Kildare, Oct: 17 days Kildare, Nov: 14 days Kildare, Dec: 15 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.