Castlerea Weather & Climate: Best Time to Visit

Castlerea, Roscommon County, Ireland, experiences moderate temperature changes through the seasons. July is the warmest month with daytime highs of 19°C (66°F), while February is the coolest at 9°C (48°F).

The city receives considerable rain/snowfall, with around 1163 mm (46 in) annually. December is the wettest month. The most sunshine falls in May, with an average of 5.2 hours of daily sunshine.

Monthly Temperature in Castlerea

In Castlerea, seasonal changes bring about a moderate variation in temperatures. 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 Castlerea

Castlerea has a relatively rain/snowy climate with high precipitation levels, averaging 1163 mm (46 in) of rain/snowfall annually. Precipitation levels in Castlerea remain relatively steady throughout the year. December has the most rain, with 107 mm (4.2 in) over 22 days. In the driest month March, this drops slightly to 86 mm (3.4 in), making the city's climate fairly predictable. For more details, please visit our Castlerea 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 Castlerea

For those who appreciate different seasons, Castlerea 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 (33 KM, 20 Miles).

Daily hours of sunshine

Data from: Claremorris, Ireland (33 KM, 20 Miles).

Daily percentage of sunshine

Data from: Claremorris, Ireland (33 KM, 20 Miles).

Humidity in Castlerea 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 (33 KM, 20 Miles).

Castlerea 3-Day Forecast

10-Day Forecast

Select a Month

Check the conditions for any month of the year.

Best Time to Visit Castlerea

During the months of June, July and August, Castlerea enjoys pleasant weather with average temperatures ranging from 18°C (65°F) to 19°C (67°F). These months are perfect for sightseeing and exploring.

Rainfall during this time ranges from 95 mm (3.7 in) in June to 101 mm (4 in) in August. This means you can expect a mix of sunny days and occasional showers.

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.