September weather forecast
Rockstone, Guyana

Rockstone's September continues to surprise with its series of climatic variations. The month witnesses slight increments in the mercury levels, but nothing too drastic from its preceding counterparts. Yet, the record-breaking temperatures hold at 33.1°C (91.6°F), indicating September as the hottest month in Rockstone. The collective influence of the heat, high humidity, and declining rainfall sets the perfect conditions for tropical weather. Despite the notable heat, September is an attractive month to visit the city for those who enjoy the sun and sand.

Temperature

In Rockstone, the month of September is known for its highest average temperatures, reaching a high of 33.1°C (91.6°F) and a low of 22.9°C (73.2°F).

Heat index

In September, the average heat index is appraised at a burning hot 48°C (118.4°F). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 78%.

Rainfall

September is the month with the least rainfall in Rockstone. Rain falls for 21 days and accumulates 55mm (2.17") of precipitation.

Daylight

In Rockstone, Guyana, the average length of the day in September is 12h and 9min.
On the first day of September, sunrise is at 05:47 and sunset at 18:00. On the last day of the month, sunrise is at 05:41 and sunset at 17:45 -04.

Sunshine

In Rockstone, the average sunshine in September is 9h.

UV index

March, April, July through November, with an average maximum UV index of 7, are months with the highest UV index in Rockstone. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.