Last updated: August 23, 2025
In Knocknalower, Ireland, the average temperature in September hovers around 13°C (57°F). With a minimum of 7°C (45°F) and a maximum of 21°C (70°F), there’s a notable range to prepare for. Expect about 112 mm (4.4 in) of precipitation spread out over 20 days, contributing to an average humidity of 87%. So, pack accordingly to stay comfortable!
In September in Knocknalower, the average temperature is 13°C (57°F). Maximum temperatures can reach 21°C (70°F), while minimums can be as low as 7°C (45°F). This pleasant climate makes Knocknalower an ideal destination for travelers looking to enjoy moderate weather during their visit.
In Knocknalower in September, the precipitation amount is 112 mm (4.4 in) over a span of 20 days.
In Knocknalower in September humidity is 87%. With an average temperature of 13°C (57°F), this humidity feels like a damp blanket wrapping around you, making it feel heavier and less comfortable for traveling, as every step seems to require more effort in the muggy air.
In Knocknalower in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Knocknalower.
UV Risk Categories
Weather in Knocknalower varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Knocknalower, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (45°F) | 107 mm (4.2 inches) | 84% | low |
| February Weather | 7°C (45°F) | 140 mm (5.5 inches) | 84% | low |
| March Weather | 7°C (45°F) | 122 mm (4.8 inches) | 83% | moderate |
| April Weather | 9°C (48°F) | 68 mm (2.7 inches) | 84% | moderate |
| May Weather | 11°C (52°F) | 76 mm (3.0 inches) | 83% | high |
| June Weather | 13°C (55°F) | 97 mm (3.8 inches) | 83% | very high |
| July Weather | 14°C (58°F) | 100 mm (3.9 inches) | 86% | very high |
| August Weather | 15°C (59°F) | 157 mm (6.2 inches) | 86% | high |
| September Weather | 13°C (57°F) | 112 mm (4.4 inches) | 87% | moderate |
| October Weather | 11°C (53°F) | 163 mm (6.4 inches) | 87% | moderate |
| November Weather | 9°C (49°F) | 145 mm (5.7 inches) | 88% | low |
| December Weather | 8°C (47°F) | 145 mm (5.7 inches) | 84% | low |