Barna Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Barna.
Climate overview of Barna
The climate in Barna, Galway County, Ireland, sees a moderate range of temperatures across the year, from 19°C (66°F) in July down to 10°C (50°F) in January.
The city receives considerable rainfall, with around 1193 mm (47 in) annually. December is the wettest month. May is the sunniest month, averaging 5.2 hours of sunshine per day.
Barna Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Barna - and find the best time to visit.
Monthly Temperature in Barna
The weather in Barna 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 10°C (50°F) in the coolest month, January.
Nights vary from 12°C (54°F) in July to around 4°C (39°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Barna
Barna experiences significant rainfall throughout the year, averaging 1193 mm (47 in) of precipitation annually. Precipitation levels in Barna remain relatively steady throughout the year. December has the most rain, with 118 mm (4.6 in) over 22 days. In the driest month April, this drops slightly to 85 mm (3.3 in), making the city's climate fairly predictable. For more details, please visit our Barna 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 Barna
For those who appreciate different seasons, Barna 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
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Barna 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
Best Time to Visit Barna
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 September
- Warmest weather: June, July and August
- Most sunshine: May
Frequently asked questions about the climate in Barna
What is the best time to visit Barna?
June, July and September typically offer the most optimal weather in Barna. In contrast, January, February, November and December tend to have less optimal conditions.
What temperatures can I expect in Barna?
Daytime highs range from 10°C (50°F) in January to 19°C (66°F) in July. Nighttime lows range from 4°C (39°F) to 12°C (54°F).
How much rain does Barna get?
Annual rainfall is around 1193 mm (47 in). December is the wettest month with 118 mm (4.6 in), while April is the driest with 85 mm (3.3 in).
How sunny is Barna?
Barna 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.
Barna 3-Day Forecast
Barna on the map
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