Collooney Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Collooney.

Climate overview of Collooney

Collooney, Sligo County, Ireland, has a moderate seasonal temperature range, with July reaching 19°C (66°F) and January cooling to 9°C (48°F).

The city receives considerable rain/snowfall, with around 1316 mm (52 in) annually. December is the wettest month. It has pleasant summers and cold winters. The sunniest month is May, with 5.2 hours of sunshine per day on average.

Collooney Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Collooney - and find the best time to visit.

Monthly Temperature in Collooney

In Collooney, 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, January.

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 Collooney

Collooney is known for its substantial rain/snowfall, with annual precipitation reaching 1316 mm (52 in). Precipitation levels in Collooney remain relatively steady throughout the year. December has the most rain, with 119 mm (4.7 in) over 23 days. In the driest month April, this drops slightly to 94 mm (3.7 in), making the city's climate fairly predictable. For more details, please visit our Collooney Precipitation page.

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

Sunshine Hours in Collooney

For those who appreciate different seasons, Collooney 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 (60 KM, 37 Miles).

Daily hours of sunshine

Data from: Claremorris, Ireland (60 KM, 37 Miles).

Humidity in Collooney by Month

Best Time to Visit Collooney

The most favourable weather available in Collooney usually occurs in June, July and August. Conditions are generally most challenging in January, February, November and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: June, July and August
  • Warmest weather: June, July and August
  • Most sunshine: May
  • Seasonal pattern: Pleasant summers and cold winters

Frequently asked questions about the climate in Collooney

What is the best time to visit Collooney?

June, July and August typically offer the most optimal weather in Collooney. In contrast, January, February, November and December tend to have less optimal conditions. Collooney has pleasant summers and cold winters.

What temperatures can I expect in Collooney?

Daytime highs range from 9°C (48°F) in January to 19°C (66°F) in July. Nighttime lows range from 3°C (37°F) to 12°C (54°F).

How much rain does Collooney get?

Annual rainfall is around 1316 mm (52 in). December is the wettest month with 119 mm (4.7 in), while April is the driest with 94 mm (3.7 in).

How sunny is Collooney?

Collooney receives around 1,114 hours of sunshine per year. May is the sunniest month with 157 hours, while December is the cloudiest with just 35 hours.

Collooney 3-Day Forecast

Collooney 3-Day Forecast

Collooney on the map

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