September weather forecast
Krabi, Thailand

In September, Krabi experiences the highest rainfall of the year averaging 355mm (13.98"). Despite the increase in rainfall, temperatures remain steady from 24°C (75.2°F) to 31°C (87.8°F). With 12.2 daylight hours and five sunshine hours, outdoor activities can still be planned accordingly, considering the high likelihood of showers. September's weather indicates a nearing end of the wet season and a transition towards the drier months.

Temperature

The dawn of September brings a marginal shift in the average high-temperature to a still hot 31°C (87.8°F), equivalent to August's readings. During September, Krabi witnesses a consistent average low-temperature of 24°C (75.2°F).

Rainfall

The month with the most rainfall is September, when the rain falls for 22 days and typically aggregates up to 355mm (13.98") of precipitation.

Sea temperature

In September, the average sea temperature is 29°C (84.2°F).
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:16 and sunset at 18:32. On the last day of September, sunrise is at 06:12 and sunset at 18:16 +07.

Sunshine

With an average of 5h of sunshine, September has the least sunshine of the year.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 12 during September translates into these guidelines:
Adopt every precaution of necessity, unprotected skin and eyes may suffer burns instantly. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. After every outdoor workout or swim, liberally apply and frequently reapply a broad-spectrum SPF 30+ sunscreen. Notice! The reflection of water and sand increases the UV radiation significantly.