Slane Weather in September

September in Slane typically sees daytime highs of 18°C (64°F) and nighttime lows of 10°C (50°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Slane in September

Based on our climate data of the past 30 years, about 16 days of rain are anticipated, with 71 mm (2.8 in) on average. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Slane in September

September in Slane brings pleasant temperatures, with highs of 18°C (64°F) and nights around 10°C (50°F). Conditions are often most pleasant around the middle of the day. Nights cool down to 10°C (50°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Slane in September

With about 128 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.