Last updated: March 2, 2024
The weather in San Isidro, Puerto Rico, during March is characterized by an average temperature of 25°C (77°F). Highs can soar to 29°C (85°F), while lows may dip to 22°C (71°F). Typically, the humidity level in San Isidro throughout March hovers around 74%.
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Average temperature
Maximum temperature
Humidity
In March, San Isidro averages 67 mm (2.6 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 12 hours 2 minutes of daylight, with the sun shining for approximately 11 hours 9 minutes each day. Additionally, there is a 64% probability of sunny days during this period.
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Rainy days
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Chance of sun
In March, the UV Index in San Isidro 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 | 2 | 5 | 8 | 11 | 13 | 13 | 10 | 7 | 4 | 2 | 1 | 0 |
| 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 | |||||