Last updated: March 2, 2024
The weather in Janske Lazne, Czech Republic, during September is characterized by an average temperature of 12°C (54°F). Highs can soar to 25°C (77°F), while lows may dip to 2°C (35°F). Typically, the humidity level in Janske Lazne throughout September hovers around 72%.
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Humidity
In September, Janske Lazne averages 94 mm (3.7 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 12 hours 34 minutes of daylight, with the sun shining for approximately 10 hours 24 minutes each day. Additionally, there is a 33% probability of sunny days during this period.
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In September, the UV Index in Janske Lazne reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 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 | 2 | 3 | 5 | 5 | 6 | 5 | 4 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||