Last updated: March 2, 2024
The weather in Ko Lanta, Thailand, during September is characterized by an average temperature of 27°C (82°F). Highs can soar to 29°C (85°F), while lows may dip to 26°C (78°F). Typically, the humidity level in Ko Lanta throughout September hovers around 84%.
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Average temperature
Maximum temperature
Humidity
In September, Ko Lanta averages 306 mm (12.0 inches) of rainfall, typically over the course of 24 rainy days. The month enjoys an average of 12 hours 8 minutes of daylight, with the sun shining for approximately 9 hours 36 minutes each day. Additionally, there is a 8% probability of sunny days during this period.
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Chance of sun
In September, the UV Index in Ko Lanta reaches a maximum of 14, 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 | 9 | 12 | 14 | 13 | 11 | 7 | 4 | 1 | 1 | 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 | ||||||