Castlereagh
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Castlereagh Weather in August

August in Castlereagh brings pleasant temperatures, with daytime highs of 18°C (64°F) and nights around 13°C (55°F). Quite a bit of rainfall is expected, around 92 mm (3.6 in), so pack an umbrella.

Rainfall in Castlereagh in August

Records from the past 30 years suggest around 17 days of rain, with 92 mm (3.6 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Castlereagh in August

August in Castlereagh brings pleasant temperatures, with highs of 18°C (64°F) and nights around 13°C (55°F). Summer occurs in August. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. On average, it sees the highest temps of the year.

Sunshine in Castlereagh in August

The month brings about 139 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Castlereagh in August

In August, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

Average water temperature in August

The water is 13°C (55°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

Castlereagh Temperature in August

Min Temperature
13°C (55°F)
Max Temperature
18°C (64°F)
Water Temperature
13°C (55°F) *
Chance of Rain
57%
Precipitation
92 mm (3.6 in)
Rainy days
17 days
Humidity
89% *
Windspeed
4 m/s (8 knots) *
Sunshine
139 hours *
Percentage Sunshine
29% *
* Data from: Belfast, Ireland (24 KM, 15 Miles).

Castlereagh Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Castlereagh - and find the best time to visit.

Best Places in the United Kingdom in August

Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in August →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Castlereagh in August

Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 13°C (55°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Castlereagh in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    6/10
  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    8/10
  • Outdoor sports
    9/10

Castlereagh 3-Day Forecast

Popular in August

Where to go in August - average daytime high across popular destinations.

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