Last updated: March 2, 2024
The weather in Cariari, Costa Rica, during September is characterized by an average temperature of 24°C (76°F). Highs can soar to 31°C (87°F), while lows may dip to 19°C (67°F). Typically, the humidity level in Cariari throughout September hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Cariari averages 192 mm (7.6 inches) of rainfall, typically over the course of 27 rainy days. The month enjoys an average of 12 hours 9 minutes of daylight, with the sun shining for approximately 9 hours 9 minutes each day. Additionally, there is a 15% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In September, the UV Index in Cariari reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 | 2 | 4 | 8 | 11 | 13 | 13 | 11 | 7 | 4 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 25 min | 30 min | 45 min | ||||||