Weather in Cardiff in May 2024
- May is usually the driest month of the year in Cardiff
Average weather
Average temperature in Cardiff in May
The expected average maximum temperature in May is +17°C with a maximum of +21°C and a minimum of +7°C.
The average maximum temperature goes up 36% by the end of the month, compared with the beginning of the month, from +11°C to +16°C.
Is Cardiff warm or cold in May?
Cardiff is typically mild in May.
Maximum temperatures go up compared to the previous month from +13°C to +16°C. The minimum temperature also goes up from +6°C to +9°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Cardiff:
Climate in Cardiff in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +13°C | +16°C | +19°C | ||||
| Min. temperature | ||||||
| -2°C | 0°C | +3°C | ||||
| Max. temperature | ||||||
| +25°C | +27°C | +30°C | ||||
| Rainfall | ||||||
| 62 mm | 72 mm | 74 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 3 m/s | ||||
| Humidity | ||||||
| 76% | 75% | 76% | ||||
| Air pressure | ||||||
| 1013 HPa | 1014 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 6 | 6 | 5 | ||||
| Cloudy days | ||||||
| 17 | 17 | 17 | ||||
| Rainy days | ||||||
| 7 | 8 | 8 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +13°C to +16°C during the day. Prepare for more rain. Average rainfall goes from 62 mm to 72 mm. It feels drier, as humidity decreases from 76% to 75%. The average wind speed doesn’t change much during May, staying around 4 m/s. The amount of sunny days stay about the same, averaging 6 sunny days during the month.
June brings much the same weather, it remains ok.
Wind
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 Cardiff is gradually increasing during May, going from 2 m/s to 5 m/s over the course of the month.
Rain
How was the weather last May in Cardiff?
Climate Change over Years
The climate in Cardiff in May has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+14°C) and the highest in 2020 (+21°C). The driest year was 1991 with only 9 mm of rainfall, and the wettest year was 2021 with 230 mm.
FAQ
Is May a good time to visit Cardiff?
Can you sunbathe in Cardiff in May?
Is Cardiff rainy in May?
Is it sunny in Cardiff in May?
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.