Castlereagh Weather in April

April in Castlereagh averages 12°C (54°F) during the day and 6°C (43°F) at night. Quite a bit of rainfall is typical this month, with around 74 mm (2.9 in) on average. An umbrella is a good idea.

Rainfall in Castlereagh in April

Typically, about 15 days will experience rainfall, with an average of 74 mm (2.9 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Castlereagh in April

Castlereagh in April gets highs of 12°C (54°F) during the day and drops to 6°C (43°F) at night. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Castlereagh in April

With about 154 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Castlereagh in April

Wind speeds average 4 m/s (8 knots) during April. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in April

At 8°C (46°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Castlereagh's climate page.

Castlereagh Temperature in April

Min Temperature 6°C (43°F)  

Max Temperature 12°C (54°F)  

Water Temperature 8°C (46°F) *  

Chance of Rain 50%  

Precipitation 74 mm (2.9 in)  

Rainy days 15 days  

Humidity 88% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 154 hours *  

Percentage Sunshine 35% *  

* Data from: Belfast, Ireland (24 KM, 15 Miles).

What to Wear in Castlereagh in April

Pack for changing conditions in Castlereagh in April. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. With water temperatures around 8°C (46°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Castlereagh in April

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Castlereagh's climate page.

More climate data for Castlereagh

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Castlereagh climate overview or explore weather in the United Kingdom.