Galway, where it's located

The climate of Galway is oceanic, with quite mild, rainy winters and mild, relatively rainy summers.
The city is located on the west coast of Ireland, in the province of Connacht.
The average temperature of the coldest month (January) is of 6.1 °C (43 °F), that of the warmest month (July) is of 16.2 °C (61 °F). Here are the average temperatures.
Galway - Average temperatures
Min (°C)4456811131210854
Max (°C)991113161820191714119
Min (°F)393941434652555450464139
Max (°F)484852556164686663575248

Precipitation amounts to 1,155 millimeters (45.5 inches) per year: it is therefore quite abundant. It ranges from 60 mm (2.4 in) in the driest month (April) to 130 mm (5.1 in) in the wettest (October). Here is the average precipitation.
Galway - Average precipitation

The sea temperature ranges between 10 °C (50 °F) and 16 °C (61 °F). So, it never becomes warm for swimming. Here are the average sea temperatures.
Galway - Sea temperature
Temp (°C)101010101214151615141211
Temp (°F)505050505457596159575452


Best Time

The best time to visit Galway is the summer, from June to August, since it is the mildest of the year. The temperatures are generally good for outdoors activities, although it's better to bring an umbrella, and a sweatshirt or sweater for the evening or for cool days.