September weather forecast
Achiwib, Guyana

September in Achiwib is marked by a precipitous decrease in rainfall, signalling the termination of the annual monsoon season. In a break from the previous monsoonal months, September witnesses a rise in temperature, to 32.5°C (90.5°F), and sunshine hours. Winds also gain momentum, accentuated by a refreshing coolness in the air. As the humidity also wanes steadily, there's a gradual crawl towards a drier, warmer phase, introducing the city to a phase of temperate autumns.

Temperature

The advent of September in Achiwib brings an average high-temperature of a still tropical 32.5°C (90.5°F), almost identical to the preceding month. During the month of September, Achiwib experiences a steady low-temperature average of 23.2°C (73.8°F).

Heat index

For September, the heat index is estimated at a blisteringly hot 42°C (107.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In September, the average relative humidity is 71%.

Rainfall

In Achiwib, in September, during 20 rainfall days, 66mm (2.6") of precipitation is typically accumulated. In Achiwib, during the entire year, the rain falls for 204.4 days and collects up to 941mm (37.05") of precipitation.

Snowfall

The only month with snowfall is September. The month with the most snowfall in Achiwib, Guyana, is September, when snow falls for 0.1 days and typically aggregates up to 1mm (0.04") of snow.

Daylight

The average length of the day in September is 12h and 8min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:02. On the last day of September, sunrise is at 05:45 and sunset at 17:50 -04.

Sunshine

In Achiwib, the average sunshine in September is 9.8h.

UV index

The months with the highest UV index in Achiwib are January through May, July through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.