Last updated: March 2, 2024
The weather in Old Saybrook, United States, during May is characterized by an average temperature of 13°C (56°F). Highs can soar to 22°C (73°F), while lows may dip to 6°C (43°F). Typically, the humidity level in Old Saybrook throughout May hovers around 69%.
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Average temperature
Maximum temperature
Humidity
In May, Old Saybrook averages 119 mm (4.7 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 14 hours 30 minutes of daylight, with the sun shining for approximately 9 hours 22 minutes each day. Additionally, there is a 44% 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 Old Saybrook reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 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 | 4 | 6 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 1 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||