Castlereagh Weather in October

Castlereagh in October averages 14°C (57°F) during the day and 9°C (48°F) at night. This is the wettest month of the year.

Rainfall in Castlereagh in October

As the month with the highest rainfall, make sure to have an umbrella to manage the showers. You can expect rain on roughly 19 days based on historical data, averaging 103 mm (4.1 in) 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 Castlereagh in October

Expect highs of 14°C (57°F) in Castlereagh in October, with nights dropping to around 9°C (48°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Castlereagh in October

The area experiences limited sunny days, amounting to roughly 85 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

Wind Speed in Castlereagh in October

Average wind conditions reach 5 m/s (10 knots) in October. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

Average water temperature in October

With water at 13°C (55°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

For Castlereagh itself, July and August generally stand out with 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.