May weather forecast
Galway, Ireland

Galway in May witnesses further springtime refinement in weather conditions. The emergence of longer daylight hours, coupled with a distinct reduction in rainfall days from April to May significantly enhances outdoor recreational prospects. Temperatures continue on their upward trend, complemented by a gently warming sea. The overall temperament of Galway's weather in May serves as an indication of the forthcoming summer season.

Temperature

The shift to May in Galway signals an average high-temperature of a still mild 15.8°C (60.4°F), subtly varied from April's 13°C (55.4°F). In the month of May, the average low-temperature usually rests at a frosty 8°C (46.4°F).

Rainfall

In May, in Galway, the rain falls for 18 days. Throughout May, 68mm (2.68") of precipitation is accumulated. Throughout the year, in Galway, there are 232 rainfall days, and 1156mm (45.51") of precipitation is accumulated.

Sea temperature

In Galway, Ireland, in May, the average water temperature is 11.4°C (52.5°F).
Note: Dipping into 11.4°C (52.5°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.

Daylight

The average length of the day in May is 15h and 53min.
On the first day of May, sunrise is at 6:00 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 9:52 pm IST.

Sunshine

May has the most sunshine of the year, with an average of 6h of sunshine.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, the UV index of 5 transforms into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.