Last updated: March 2, 2024
The weather in Gustavia, Saint Barthélemy, during May is characterized by an average temperature of 26°C (79°F). Highs can soar to 27°C (81°F), while lows may dip to 24°C (76°F). Typically, the humidity level in Gustavia throughout May hovers around 79%.
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Average temperature
Maximum temperature
Humidity
In May, Gustavia averages 47 mm (1.8 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 12 hours 58 minutes of daylight, with the sun shining for approximately 11 hours 41 minutes each day. Additionally, there is a 60% probability of sunny days during this period.
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Chance of sun
In May, the UV Index in Gustavia reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 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 | 3 | 6 | 10 | 12 | 13 | 12 | 10 | 6 | 3 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||