September weather forecast
Onverwacht, Suriname

September sees a mild reduction in temperature from the scorching summer highs of August, with an average high of 34°C (93.2°F). The decrease in rainfall continues to favor dry conditions in Onverwacht. Extended daylight hours and an increased wind speed soon become the month's defining features. A proportional decrease in cloud cover allows for longer sunshine hours. This month marks a transition towards the cooler months of the year ahead.

Temperature

Onverwacht's average high-temperature in September is a still hot 34°C (93.2°F), marking an insignificant difference from the 32.8°C (91°F) of August. During the nights in September, Onverwacht experiences a consistent average temperature of 22.2°C (72°F).

Heat index

The heat index value for September is estimated at a life-threatening hot 51°C (123.8°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Onverwacht, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall in Onverwacht, Suriname, is September, when the rain falls for 17.2 days and typically collects 34mm (1.34") of precipitation.

Daylight

In September, the average length of the day in Onverwacht, Suriname, is 12h and 9min.
On the first day of September, sunrise is at 06:34 and sunset at 18:47. On the last day of the month, sunrise is at 06:28 and sunset at 18:32 -03.

Sunshine

September has the most sunshine of the year, with an average of 9.3h of sunshine.

UV index

The months with the highest UV index in Onverwacht are July through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.