Last updated: August 27, 2025
In May, the average temperature in Rhayader, United Kingdom is a mild 10°C (51°F). Expect a chilly minimum of -2°C (29°F) and the occasional warm up to 24°C (76°F). This month sees 88 mm (3.5 in) of precipitation spread over 14 days, contributing to a relatively high average humidity of 79%. Prepare for a dynamic climate experience!
In May in Rhayader, the average temperature is 10°C (51°F), with maximums reaching 24°C (76°F) and minimums dropping as low as -2°C (29°F). This makes it a great time for travelers seeking a mix of mild and cool weather, perfect for outdoor activities and exploring the scenic sights.
In Rhayader in May, the precipitation amount is 88 mm (3.5 in) over the course of 14 days.
In Rhayader in May, humidity is 79%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel somewhat uncomfortable unless you're properly layered.
In Rhayader in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Rhayader.
UV Risk Categories
Weather in Rhayader varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Rhayader, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 79 mm (3.1 inches) | 89% | low |
| February Weather | 4°C (40°F) | 115 mm (4.5 inches) | 88% | low |
| March Weather | 5°C (42°F) | 115 mm (4.5 inches) | 86% | moderate |
| April Weather | 7°C (46°F) | 60 mm (2.4 inches) | 84% | high |
| May Weather | 10°C (51°F) | 88 mm (3.5 inches) | 79% | high |
| June Weather | 14°C (57°F) | 94 mm (3.7 inches) | 81% | very high |
| July Weather | 15°C (60°F) | 82 mm (3.2 inches) | 78% | very high |
| August Weather | 14°C (58°F) | 106 mm (4.2 inches) | 79% | high |
| September Weather | 12°C (55°F) | 85 mm (3.3 inches) | 85% | high |
| October Weather | 10°C (50°F) | 123 mm (4.8 inches) | 90% | moderate |
| November Weather | 6°C (44°F) | 104 mm (4.1 inches) | 91% | low |
| December Weather | 5°C (41°F) | 129 mm (5.1 inches) | 89% | low |