Weather in Belfast in March 2025
Average weather
Average temperature in Belfast in March
The expected average maximum temperature in March is +10°C with a maximum of +15°C and a minimum of -4°C.
The average maximum temperature goes up 26% by the end of the month, compared with the beginning of the month, from +8°C to +13°C.
Is Belfast warm or cold in March?
Belfast is typically cool in March.
Maximum temperatures go up compared to the previous month from +8°C to +9°C. The minimum temperature also goes up from +3°C to +4°C.
Pack a sweater and a jacket as there will be cooler temperatures.
Take a look at how March is compared to other months in Belfast:
Water temperature in Belfast in March
Water in Belfast in March is Cold. It varies from +7°C to +9°C, with an average of +8°C. This is almost similar to the air temperature, which averages +9°C.
The water temperature in March is one of the coldest of the entire year:
Can you swim in Belfast in March?
Climate in Belfast in March
| February | March | April | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +8°C | +9°C | +11°C | ||||
| Min. temperature | ||||||
| -7°C | -5°C | -3°C | ||||
| Max. temperature | ||||||
| +15°C | +18°C | +22°C | ||||
| Rainfall | ||||||
| 63 mm | 68 mm | 60 mm | ||||
| Wind | ||||||
| 5 m/s | 5 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +8°C | +8°C | +9°C | ||||
| Humidity | ||||||
| 83% | 81% | 77% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 3 | ||||
| Cloudy days | ||||||
| 9 | 9 | 8 | ||||
| Rainy days | ||||||
| 16 | 19 | 18 | ||||
| Snowy days | ||||||
| 1 | 1 | 0 | ||||
March weather is still as ok as in February. It’s getting warmer as March arrives. The average maximum temperature goes up from +8°C to +9°C during the day. Prepare for more rain. Average rainfall goes from 63 mm to 68 mm. It feels drier, as humidity decreases from 83% to 81%. The average wind speed doesn’t change much during March, staying around 5 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
April brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 8 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 decreasing during March, going from 5 m/s to 3 m/s over the course of the month.
Rain
Snow
March is one of the snowiest months in Belfast.
Here’s how March is compared with other months in the amount of snow, total mm:
How was the weather last March in Belfast?
Climate Change over Years
The climate in Belfast in March has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+11°C) and the highest in 1995 (+14°C). The driest year was 2003 with only 711 mm of rainfall, and the wettest year was 2019 with 1255 mm.
FAQ
Is March a good time to visit Belfast?
Can you sunbathe in Belfast in March?
Can you swim in Belfast in March?
Is Belfast rainy in March?
Is it sunny in Belfast in March?
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.