October weather forecast
Port Mourant, Guyana

Come October, and Port Mourant seems set for an exceptional weather transition phase. The continuation from September’s decreased rainfall and moderate temperatures rules the weather trends. The dried and warmed landscapes, having soaked hours of sunlight, carry a charm unique to this time of the year. Furthermore, with the highest recorded visibility of 10km (6.2mi), October's weather paints a canopy of clear skies over Port Mourant. Through the subtleties of its weather, October in Port Mourant makes a gentle shift from the rainy phase to the relatively drier months ahead.

Temperature

The arrival of October in Port Mourant, Guyana, records an average high-temperature of a still tropical 30.7°C (87.3°F), closely related to the 30.8°C (87.4°F) observed in September. October nights in Port Mourant witness a slight temperature decrease, averaging at a warm 25.9°C (78.6°F).

Heat index

The heat index in October is estimated at a fiery hot 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index 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.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In October, the average relative humidity in Port Mourant is 77%.

Rainfall

In Port Mourant, in October, it is raining for 23.5 days, with typically 133mm (5.24") of accumulated precipitation. In Port Mourant, during the entire year, the rain falls for 312.6 days and collects up to 2298mm (90.47") of precipitation.

Daylight

In Port Mourant, the average length of the day in October is 11h and 59min.
On the first day of October, sunrise is at 05:36 and sunset at 17:40. On the last day of the month, sunrise is at 05:35 and sunset at 17:30 -04.

Sunshine

The average sunshine in October is 8.9h.

UV index

The months with the highest UV index in Port Mourant are January, February, April, June through 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 rays for ordinary individuals.
Note: The maximum UV index of 7 during October translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.