September weather forecast
Llano Grande, Panama

The first month of the autumn, September, is still a warm month in Llano Grande, Panama, with an average temperature fluctuating between 29.5°C (85.1°F) and 23.2°C (73.8°F).

Temperature

Llano Grande experiences a subtle adjustment in high-temperatures to a still moderately hot 29.5°C (85.1°F) with the onset of September, maintaining near parity with August's 29.7°C (85.5°F). During September, an average low-temperature of 23.2°C (73.8°F) is observed in Llano Grande.

Heat index

September's heat index is calculated to be a torrid 37°C (98.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Llano Grande, the average relative humidity in September is 85%.

Rainfall

In Llano Grande, in September, during 28.3 rainfall days, 160mm (6.3") of precipitation is typically accumulated. Throughout the year, in Llano Grande, there are 261.2 rainfall days, and 1359mm (53.5") of precipitation is accumulated.

Daylight

The average length of the day in September in Llano Grande, Panama, is 12h and 10min.
On the first day of September, sunrise is at 06:11 and sunset at 18:27. On the last day of the month, sunrise is at 06:07 and sunset at 18:10 EST.

Sunshine

The average sunshine in September in Llano Grande is 8.2h.

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.