September weather forecastHat Yai, Thailand

Weather in September

In September, Hat Yai experiences a minor retreat in temperatures, providing some relief to the scorching summer heat. Humidity levels increase, resulting in more moisture-rich air that revitalizes one's skin. The extended daylight hours provide ample opportunity for day trips or long indoor siestas. It is also the perfect time to witness the tropical vegetation in all its verdant glory, fresh after the midsummer monsoons. September takes the credit for the second highest rainfall of the year, scaling to 157mm (6.18").

Temperature

Hat Yai marks the onset of September with an average high-temperature of a still tropical 32.5°C (90.5°F), a subtle shift from August's 33.1°C (91.6°F). In Hat Yai, the average temperature during the nights of September drops to a moderately hot 23.4°C (74.1°F).

Heat index

For September, the heat index is evaluated at a burning hot 47°C (116.6°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Hat Yai, the average relative humidity in September is 82%.

Rainfall

In September, in Hat Yai, the rain falls for 18 days. Throughout September, 157mm (6.18") of precipitation is accumulated. Throughout the year, in Hat Yai, there are 160 rainfall days, and 1726mm (67.95") of precipitation is accumulated.

Daylight

The average length of the day in September in Hat Yai is 12h and 10min.
On the first day of September in Hat Yai, sunrise is at 06:10 and sunset at 18:25. On the last day of the month, sunrise is at 06:06 and sunset at 18:09 +07.

Sunshine

June, August through December, with an average of 6h of sunshine, are months with the least sunshine.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index in Hat Yai. A UV Index value of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 12 in September transforms into this advice:
Put into action all important safeguards, unprotected skin may burn swiftly. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Every two hours, apply and reapply an SPF 30+ broad-spectrum sunscreen, especially after swimming or engaging in outdoor activities.