Ballymena Weather in May

May in Ballymena sees daytime temperatures around 15°C (59°F) and lows of 8°C (46°F) at night. With around 79 mm (3.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Ballymena in May

The climate data from previous years indicates about 17 days of rain, averaging 79 mm (3.1 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Ballymena in May

In May, expect moderate temperatures in Ballymena, with highs of 15°C (59°F) and lows of 8°C (46°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Ballymena in May

With about 184 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Ballymena in May

Wind speeds average 4 m/s (8 knots) during May. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in May

At 9°C (48°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Ballymena.

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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Ballymena's climate page.

Ballymena Temperature in May

Min Temperature 8°C (46°F)  

Max Temperature 15°C (59°F)  

Water Temperature 9°C (48°F) *  

Chance of Rain 58%  

Precipitation 79 mm (3.1 in)  

Rainy days 17 days  

Humidity 89% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 184 hours *  

Percentage Sunshine 39% *  

* Data from: Belfast, Ireland (24 KM, 15 Miles).

What to Wear in Ballymena in May

The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. With water temperatures around 9°C (48°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Ballymena in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Ballymena's climate page.

More climate data for Ballymena

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Ballymena climate overview or explore weather in the United Kingdom.