Last updated: March 2, 2024
The weather in Ystalyfera, United Kingdom, during May is characterized by an average temperature of 11°C (53°F). Highs can soar to 21°C (70°F), while lows may dip to 0°C (33°F). Typically, the humidity level in Ystalyfera throughout May hovers around 80%.
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Average temperature
Maximum temperature
Humidity
In May, Ystalyfera averages 107 mm (4.2 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 15 hours 40 minutes of daylight, with the sun shining for approximately 12 hours 41 minutes each day. Additionally, there is a 28% probability of sunny days during this period.
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Chance of sun
In May, the UV Index in Ystalyfera reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 2 | 3 | 4 | 6 | 7 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||