Last updated: March 2, 2024
The weather in Marco Island, United States, during May is characterized by an average temperature of 26°C (79°F). Highs can soar to 31°C (88°F), while lows may dip to 21°C (69°F). Typically, the humidity level in Marco Island throughout May hovers around 71%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Marco Island averages 126 mm (5.0 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 25 minutes of daylight, with the sun shining for approximately 10 hours 38 minutes each day. Additionally, there is a 54% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In May, the UV Index in Marco Island reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 | 1 | 3 | 5 | 8 | 11 | 12 | 11 | 9 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||