Callan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Callan.
Climate overview of Callan
The climate in Callan, Ireland, sees a moderate range of temperatures across the year, from 20°C (68°F) in July down to 9°C (48°F) in January.
With around 920 mm (36 in) of annual rain/snowfall, the city has moderate precipitation levels. October is the wettest month and March the driest. It also has pleasant summers and cold winters.
Callan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Callan - and find the best time to visit.
Monthly Temperature in Callan
The climate in Callan experiences moderate temperature changes, with mild shifts between seasons. 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 Callan
On average, Callan receives a reasonable amount of rain/snowfall, with an annual precipitation of 920 mm (36 in). Precipitation levels in Callan remain relatively steady throughout the year. October has the most rain, with 87 mm (3.4 in) over 18 days. In the driest month March, this drops slightly to 66 mm (2.6 in), making the city's climate fairly predictable. For more details, please visit our Callan 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 Callan
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: June, July and August
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Callan
What is the best time to visit Callan?
July and August typically offer the most optimal weather in Callan. In contrast, January, February and December tend to have less optimal conditions. Callan has pleasant summers and cold winters.
What temperatures can I expect in Callan?
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 Callan get?
Annual rainfall is around 920 mm (36 in). October is the wettest month with 87 mm (3.4 in), while March is the driest with 66 mm (2.6 in).
Callan 3-Day Forecast
Callan on the map
Callan is highlighted - select any city to see its climate.
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