Inis Mor Weather in September

Inis Mor in September sees moderate temperatures, with highs around 17°C (63°F) and overnight lows of 13°C (55°F). Rainfall is fairly high at around 134 mm (5.3 in) on average, so pack waterproofs just in case.

Rainfall in Inis Mor in September

Typically around 20 days of rainfall are expected, averaging 134 mm (5.3 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Inis Mor in September

Expect highs of 17°C (63°F) in Inis Mor in September, with nights dropping to around 13°C (55°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, July and August typically offer the best weather for Inis Mor.