Castlederg Weather in September

September in Castlederg brings moderate temperatures, with highs of 17°C (63°F) and nights dropping to 10°C (50°F). Rainfall is on the higher side this month, averaging around 90 mm (3.5 in), so keep a rain jacket handy.

Rainfall in Castlederg in September

Records from the past 30 years suggest around 21 days of rain, with 90 mm (3.5 in) average for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Castlederg in September

If you're visiting Castlederg in September, expect highs of 17°C (63°F) and overnight lows around 10°C (50°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 10°C (50°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Castlederg in September

The city usually sees around 118 hours of sunlight, indicating a moderately sunny period.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Castlederg.