Shannon weather

Our guide to the weather in Shannon during May

15

Average high

4

UV Index

87mm

Monthly rainfall

84%

Humidity

We've looked at the most up-to-date weather data for Shannon, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Shannon weather in May.

What's the temperature like in Shannon during May?

The temperature reaches around 15℃ during the daytime in May, falling away to 7℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Shannon during May?

On average, there will be 7 rainy days during the month, amounting to 87.0mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Shannon during May?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during May. With moderate air temperatures, any breeze will feel cool.

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Weather in Shannon

Our month-by-month guide to the weather and climate in Shannon

7.9

Shannon weather in

January
8.6

Shannon weather in

February
10.1

Shannon weather in

March
12.4

Shannon weather in

April
14.5

Shannon weather in

May
17.2

Shannon weather in

June
18.6

Shannon weather in

July
18.1

Shannon weather in

August
16.6

Shannon weather in

September
13.8

Shannon weather in

October
10.1

Shannon weather in

November
8.1

Shannon weather in

December