Castlerock Weather in October

During October, Castlerock experiences moderate daytime temperatures of 14°C (57°F) and cooler nights around 10°C (50°F). Expect quite a bit of rainfall. Around 134 mm (5.3 in) is typical.

Rainfall in Castlerock in October

Records from the past 30 years suggest around 22 days of rain, with 134 mm (5.3 in) average for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Castlerock in October

October in Castlerock brings moderate temperatures, with highs of 14°C (57°F) and nights around 10°C (50°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. 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 Castlerock in October

You can expect a moderate amount of sunlight, with approximately 103 hours. This means a pleasant mix of sun and overcast.

If you prefer dry days with pleasant temperatures, June typically offers 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.