Last updated: March 2, 2024
The weather in Stornoway, United Kingdom, during May is characterized by an average temperature of 10°C (51°F). Highs can soar to 21°C (70°F), while lows may dip to 2°C (36°F). Typically, the humidity level in Stornoway throughout May hovers around 83%.
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Average temperature
Maximum temperature
Humidity
In May, Stornoway averages 73 mm (2.9 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 16 hours 47 minutes of daylight, with the sun shining for approximately 12 hours 32 minutes each day. Additionally, there is a 23% probability of sunny days during this period.
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Rainy days
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Chance of sun
In May, the UV Index in Stornoway reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||