Last updated: March 2, 2024
The weather in Postojna, Slovenia, during July is characterized by an average temperature of 20°C (68°F). Highs can soar to 31°C (87°F), while lows may dip to 11°C (51°F). Typically, the humidity level in Postojna throughout July hovers around 63%.
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Average temperature
Maximum temperature
Humidity
In July, Postojna averages 130 mm (5.1 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 15 hours 16 minutes of daylight, with the sun shining for approximately 13 hours 51 minutes each day. Additionally, there is a 47% probability of sunny days during this period.
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Chance of sun
In July, the UV Index in Postojna 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 | 5 | 7 | 9 | 9 | 9 | 7 | 5 | 3 | 2 | 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 | ||||||