Monthly climate guide
Westport weather in May
Expect cool weather in Westport in May: afternoons reach about 14°C (57°F), while nights drop to around 8°C (46°F). Around 90 mm of rain falls over the month (wet), and skies are often cloudy. Daytime highs are 3°C warmer than April and 2°C cooler than June.
What stands out in May
- May brings late spring to Westport.
- Days and nights are close, only about 6°C apart.
Avg high
14°C
57°F
Avg low
8°C
46°F
Rainfall
90 mm
wet
Humidity
84%
relative
Sky
74%
cloud · often cloudy
Westport weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 8°C / 46°F | 4°C / 39°F | 131 mm | 91% | 75% |
| February | 8°C / 46°F | 4°C / 38°F | 119 mm | 90% | 77% |
| March | 9°C / 48°F | 4°C / 38°F | 91 mm | 88% | 73% |
| April | 11°C / 52°F | 5°C / 41°F | 71 mm | 86% | 71% |
| May | 14°C / 57°F | 8°C / 46°F | 90 mm | 84% | 74% |
| June | 16°C / 60°F | 10°C / 49°F | 100 mm | 84% | 78% |
| July | 17°C / 63°F | 11°C / 52°F | 111 mm | 85% | 80% |
| August | 17°C / 62°F | 11°C / 53°F | 128 mm | 86% | 79% |
| September | 16°C / 60°F | 10°C / 50°F | 103 mm | 87% | 74% |
| October | 13°C / 55°F | 8°C / 46°F | 120 mm | 89% | 70% |
| November | 10°C / 49°F | 6°C / 42°F | 135 mm | 91% | 70% |
| December | 8°C / 47°F | 5°C / 41°F | 154 mm | 91% | 77% |
What to pack for May
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Westport?
Compare the months in the chart above to find your ideal window.
Best time to visit Westport →Other Ireland cities in May
Cite or embed this data
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Westport weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/ireland/westport/may
<a href="https://weathercompare.eu/weather/ireland/westport/may">Westport weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/ireland/westport" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Westport weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/ireland/westport/may">Westport weather in May</a> – WeatherCompare</p>
Westport in May: quick answers
Is May a good time to visit Westport?
May is one of the wetter months in Westport, with about 90 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Westport in May?
Average highs are about 14°C (57°F) and average lows about 8°C (46°F), based on 10 years of daily data.
Does it rain a lot in Westport in May?
Westport typically gets around 90 mm of rain in May — wet.
Figures are long-term averages for the area around Westport (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.