Westport Weather & Climate: Best Time to Visit

Temperatures in Westport, Mayo, Ireland, shift moderately through the seasons. The warmest month is July at 19°C (66°F), and the coolest is February at 9°C (48°F).

The city receives considerable rainfall, with around 1338 mm (53 in) annually. December is the wettest month. May is the sunniest month, averaging 5.2 hours of sunshine per day.

Monthly Temperature in Westport

The weather in Westport changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 9°C (48°F) in the coolest month, February.

Nights vary from 12°C (54°F) in July to around 3°C (37°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Westport

Westport has a notably wet climate with abundant precipitation, recording 1338 mm (53 in) of rainfall per year. Precipitation levels in Westport remain relatively steady throughout the year. December has the most rain, with 133 mm (5.2 in) over 24 days. In the driest month April, this drops slightly to 93 mm (3.7 in), making the city's climate fairly predictable. For more details, please visit our Westport Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Sunshine Hours in Westport

For those who appreciate different seasons, Westport serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 5.2 hours of sunshine daily, and embrace the darker days in December, offering only 1.2 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Claremorris, Ireland (36 KM, 22 Miles).

Daily hours of sunshine

Data from: Claremorris, Ireland (36 KM, 22 Miles).

Daily percentage of sunshine

Data from: Claremorris, Ireland (36 KM, 22 Miles).

Humidity in Westport by Month

The city experiences its highest humidity in January, reaching 90%. In May, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

Data from: Claremorris, Ireland (36 KM, 22 Miles).

Westport 3-Day Forecast

10-Day Forecast

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Check the conditions for any month of the year.

Best Time to Visit Westport

Westport's weather is most enjoyable during June, July, August and September, with comfortable temperatures from 17°C (63°F) to 19°C (65°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 98 mm (3.9 in) and 112 mm (4.4 in), providing a good balance of sunny and rainy days.

Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.