Weather in Cardiff in March 2025
Average weather
Average temperature in Cardiff in March
Going from a maximum of +63°F during the day to a minimum of +34°F during the night, the temperature in March averages around +54°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +46°F to +46°F.
Is Cardiff warm or cold in March?
Cardiff is typically chill in March.
Maximum temperatures go up compared to the previous month from +46°F to +50°F. The minimum temperature also goes up from +37°F to +41°F.
Pack a jumper and a jacket as there will be cooler temperatures.
Take a look at how March is compared to other months in Cardiff:
Climate in Cardiff in March
| February | March | April | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +46°F | +50°F | +55°F | ||||
| Min. temperature | ||||||
| +18°F | +21°F | +28°F | ||||
| Max. temperature | ||||||
| +63°F | +68°F | +77°F | ||||
| Rainfall | ||||||
| 74 mm | 72 mm | 62 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 82% | 80% | 76% | ||||
| Air pressure | ||||||
| 1014 HPa | 1013 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 3 | 4 | 6 | ||||
| Cloudy days | ||||||
| 17 | 18 | 17 | ||||
| Rainy days | ||||||
| 8 | 9 | 7 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
March weather is still as ok as in February. It’s getting warmer as March arrives. The average maximum temperature goes up from +46°F to +50°F during the day. As March arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 74 mm to 72 mm. It feels drier, as humidity decreases from 82% to 80%. The average wind speed doesn’t change much during March, staying around 4 m/s. The good news is there are likely to be more sunny days in March, from 3 to 4.
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 Cardiff is gradually increasing during March, going from 6 m/s to 6 m/s over the course of the month.
Rain
How was the weather last March in Cardiff?
Climate Change Over the Years
The climate in Cardiff in March has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+47°F) and the highest in 2012 (+59°F). The driest year was 2011 with only 17 mm of rainfall, and the wettest year was 2022 with 212 mm.
FAQ
Is March a good time to visit Cardiff?
Can you sunbathe in Cardiff in March?
Is Cardiff rainy in March?
Is it sunny in Cardiff in March?
Other cities in United Kingdom
Monthly weather in Cardiff
Source of the data
For this page, we’ve looked at the typical weather in Cardiff, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
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.