Llantrisant Weather in May

May in Llantrisant typically sees daytime highs of 16°C (61°F) and nighttime lows of 9°C (48°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Llantrisant in May

Expect around 16 days of rain based on historical data, with 83 mm (3.3 in) average. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Llantrisant in May

Daytime highs in Llantrisant in May reach 16°C (61°F), with nights around 9°C (48°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Llantrisant in May

The days are predominantly sunny, with an estimated total of around 197 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Llantrisant in May

May sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in May

The water sits at 11°C (52°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.