Cavan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Cavan.
Climate overview of Cavan
Cavan, Cavan County, Ireland, has a moderate seasonal temperature range, with July reaching 20°C (68°F) and January cooling to 9°C (48°F).
The city receives considerable rainfall, with around 1024 mm (40 in) annually. August is the wettest month. It has pleasant summers and cold winters.
Cavan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cavan - and find the best time to visit.
Monthly Temperature in Cavan
In Cavan, seasonal changes bring about a moderate variation in temperatures. Typically, average maximum daytime temperatures range from a pleasant 20°C (68°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 Cavan
Cavan is known for its substantial rainfall, with annual precipitation reaching 1024 mm (40 in). Precipitation levels in Cavan remain relatively steady throughout the year. August has the most rain, with 96 mm (3.8 in) over 19 days. In the driest month March, this drops slightly to 73 mm (2.9 in), making the city's climate fairly predictable. For more details, please visit our Cavan Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Cavan
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July
- Warmest weather: June, July and August
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Cavan
What is the best time to visit Cavan?
July typically offers the most optimal weather in Cavan. In contrast, January, February and December tend to have less optimal conditions. Cavan has pleasant summers and cold winters.
What temperatures can I expect in Cavan?
Daytime highs range from 9°C (48°F) in January to 20°C (68°F) in July. Nighttime lows range from 3°C (37°F) to 12°C (54°F).
How much rain does Cavan get?
Annual rainfall is around 1024 mm (40 in). August is the wettest month with 96 mm (3.8 in), while March is the driest with 73 mm (2.9 in).
Cavan 3-Day Forecast
Cavan on the map
Cavan is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Cork
19°C (66°F) Kilkenny
20°C (68°F) Dublin20°C (68°F) Kenmare
19°C (66°F) Galway20°C (68°F) Killarney19°C (66°F) Westport19°C (66°F) Doolin18°C (64°F) 
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