Portlaoise Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Portlaoise.
Climate overview of Portlaoise
Portlaoise, Laois, Ireland, sees big temperature differences between seasons, with July peaking at 20°C (68°F) and January dropping to 9°C (48°F).
Annual rain/snowfall is moderate at around 929 mm (37 in), with November being the wettest month. The city also has pleasant summers and cold winters.
Portlaoise Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Portlaoise - and find the best time to visit.
Monthly Temperature in Portlaoise
Visitors to Portlaoise can expect significant temperature changes throughout the year. Average daytime temperatures reach a pleasant 20°C (68°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 9°C (48°F).
At night, temperatures range from around 12°C (54°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Portlaoise
Generally, Portlaoise experiences moderate precipitation patterns, averaging 929 mm (37 in) yearly. Despite minor fluctuations, Portlaoise enjoys fairly consistent precipitation throughout the year. In November, you can expect around 85 mm (3.3 in) of precipitation, while in March, Portlaoise receives about 68 mm (2.7 in). For more details, please visit our Portlaoise 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 Portlaoise
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 Portlaoise
What is the best time to visit Portlaoise?
July and August typically offer the most optimal weather in Portlaoise. In contrast, January, February and December tend to have less optimal conditions. Portlaoise has pleasant summers and cold winters.
What temperatures can I expect in Portlaoise?
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). Temperatures vary considerably through the year.
How much rain does Portlaoise get?
Annual rainfall is around 929 mm (37 in). November is the wettest month with 85 mm (3.3 in), while March is the driest with 68 mm (2.7 in).
Portlaoise 3-Day Forecast
Portlaoise 3-Day Forecast
Portlaoise on the map
Portlaoise 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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