Weather in Shannon in May 2025
- May is usually the driest month of the year in Shannon
Average weather
Average temperature in Shannon in May
Going from a maximum of +73°F during the day to a minimum of +39°F during the night, the temperature in May averages around +63°F.
The average maximum temperature goes up 42% by the end of the month, compared with the beginning of the month, from +59°F to +73°F.
Is Shannon warm or cold in May?
Shannon is typically mild in May.
Maximum temperatures go up compared to the previous month from +54°F to +59°F. The minimum temperature also goes up from +41°F to +46°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Shannon:
Climate in Shannon in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +54°F | +59°F | +63°F | ||||
| Min. temperature | ||||||
| +25°F | +30°F | +37°F | ||||
| Max. temperature | ||||||
| +72°F | +79°F | +86°F | ||||
| Rainfall | ||||||
| 68 mm | 78 mm | 77 mm | ||||
| Wind | ||||||
| 3 m/s | 4 m/s | 3 m/s | ||||
| Humidity | ||||||
| 80% | 79% | 81% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 1 | ||||
| Cloudy days | ||||||
| 9 | 9 | 9 | ||||
| Rainy days | ||||||
| 19 | 20 | 20 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +54°F to +59°F during the day. Prepare for more rain. Average rainfall goes from 68 mm to 78 mm. It feels drier, as humidity decreases from 80% to 79%. Winds are stronger in comparison to April, going up from 3 m/s to 4 m/s on average. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Shannon is gradually increasing during May, going from 2 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in Shannon?
Climate Change Over the Years
The climate in Shannon in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+53°F) and the highest in 2023 (+57°F). The driest year was 2001 with only 746 mm of rainfall, and the wettest year was 2009 with 1263 mm.
FAQ
Is May a good time to visit Shannon?
Can you sunbathe in Shannon in May?
Is Shannon rainy in May?
Is it sunny in Shannon in May?
Other cities in Ireland
Monthly weather in Shannon
Source of the data
For this page, we’ve looked at the typical weather in Shannon, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.