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Belfast in April: Weather, Average temperature and Climate

Take a look at past year’s weather for Belfast in April and see if it is worth visiting.
Check flight prices to Belfast on Avionero:
April

Weather in Belfast in April 2025

OK Weather
Chill
🌧️
Rainy
🌊
Cold water
Belfast in April usually sees fair weather conditions, with an average daily high temperature of +52°F and roughly 3 sunny days. However, you should prepare for about 18 rainy days with an average precipitation of 60 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+52°F
Avg. max. temperature
+27°F
Min.
+72°F
Max.
60 mm
Total precipitation
77%
Avg. humidity
4 m/s
Avg. wind
3 ☀️
Sunny Days
8 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Belfast has OK weather in April.

Average temperature in Belfast in April

Here are the expected maximum, average and minimum temperatures in Belfast for April based on the historical data.
Last Year
Historical Data

The temperature in April is +54°F on average, with a range between a maximum of +63°F during the day and a minimum of +34°F at night.

The average maximum temperature goes up 44% by the end of the month, compared with the beginning of the month, from +50°F to +63°F.

Is Belfast warm or cold in April?

Belfast is typically chill in April.

Maximum temperatures go up compared to the previous month from +48°F to +52°F. The minimum temperature also goes up from +39°F to +41°F.

Pack a jumper and a jacket as there will be cooler temperatures.

Take a look at how April is compared to other months in Belfast:

Water temperature in Belfast in April

Water in Belfast in April is Cold. It varies from +46°F to +50°F, with an average of +48°F. This is almost similar to the air temperature, which averages +52°F.

The water temperature in April is one of the coldest of the entire year:

The warmest water temperatures in Belfast are reached in September, when the average sea temperature rises to +58°F. The coldest water temperatures are in March, with an average of +47°F.

Can you swim in Belfast in April?

We would not recommend swimming in Belfast in April, the water is very cold (+48°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in Belfast in April

Belfast weather looks like this, on average, in April and the surrounding months.
MarchAprilMay
Avg. temperature
+48°F+52°F+57°F
Min. temperature
+23°F+27°F+30°F
Max. temperature
+64°F+72°F+77°F
Rainfall
68 mm60 mm69 mm
Wind
5 m/s4 m/s4 m/s
Avg. water temperature
+47°F+48°F+51°F
Humidity
81%77%76%
Air pressure
1011 HPa1013 HPa1014 HPa
Sunny days
234
Cloudy days
988
Rainy days
191819
Snowy days
100

April weather is still as ok as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +48°F to +52°F during the day. As April arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 68 mm to 60 mm. It feels drier, as humidity decreases from 81% to 77%. Winds are calmer in comparison to March, going down from 5 m/s to 4 m/s on average. The good news is there are likely to be more sunny days in April, from 2 to 3.

May brings much the same weather, it remains ok.

Wind

Wind speed in Belfast in April based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Belfast is gradually increasing during April, going from 2 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during April in Belfast based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in April stands at 57%, leading to total precipitation of around 77 mm. The maximum amount of rainfall per day is around 17 mm, which is considered light rain. April is a pretty wet month with over 17 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how April is compared with other months in the amount of precipitation, total mm:
Belfast wettest month is October, where a typical day has a 61% chance of precipitation and 91 mm of rainfall per day. April, on the other hand, is the driest month with a mere 60% chance of precipitation and 60 mm of rainfall per day.

How was the weather last April in Belfast?

This is the weather in Belfast in April 2023:
1 April
🌧️
+50°F
2 April
☁️
+52°F
3 April
☁️
+50°F
4 April
☁️
+54°F
5 April
🌧️
+57°F
6 April
☀️
+55°F
7 April
☁️
+53°F
8 April
☁️
+55°F
9 April
🌧️
+53°F
10 April
🌧️
+52°F
11 April
🌧️
+48°F
12 April
☀️
+46°F
13 April
☀️
+52°F
14 April
☁️
+53°F
15 April
🌧️
+55°F
16 April
☁️
+61°F
17 April
☁️
+55°F
18 April
☀️
+59°F
19 April
☀️
+57°F
20 April
☀️
+57°F
21 April
☀️
+62°F
22 April
🌧️
+50°F
23 April
🌧️
+55°F
24 April
🌧️
+50°F
25 April
☁️
+46°F
26 April
☁️
+52°F
27 April
☁️
+52°F
28 April
🌧️
+61°F
29 April
🌫️
+55°F
30 April
🌧️
+62°F
In April 2023 Belfast had 7 sunny days, 11 cloudy days, and 11 rainy days. The average maximum temperature was +54°F, with an absolute maximum of +63°F and a minimum of +46°F. The average humidity was 82%, with a maximum of 100% and a minimum of 54%. The average wind speed was 4 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in April?

Climate Change Over the Years

This is how Belfast climate has changed over the last 43 years.

The climate in Belfast in April has not changed that much over the last 43 years.

The average temperature was the lowest in 1979 (+52°F) and the highest in 1995 (+57°F). The driest year was 2003 with only 711 mm of rainfall, and the wettest year was 2019 with 1255 mm.

FAQ

Frequently asked questions about the weather in Belfast in April:

Is April a good time to visit Belfast?

It’s always a good time to visit Belfast, but the weather is changeable in April, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Belfast in April?

Not really, April is not the best time to sunbathe, unless you visit a local solarium.

Can you swim in Belfast in April?

Swimming in Belfast in April is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Belfast rainy in April?

Belfast is often rainy in April. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Belfast in April?

Usually, it’s not very sunny in Belfast in April, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in United Kingdom

Check out the weather for other cities in United Kingdom.

Monthly weather in Belfast

Source of the data

For this page, we’ve looked at the typical weather in Belfast, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.