October weather forecast
Nismes, Guyana

October, the same as September, in Nismes, Guyana, is another tropical autumn month, with an average temperature fluctuating between 32.9°C (91.2°F) and 23.5°C (74.3°F).

Temperature

October's weather records an average high-temperature of a still hot 32.9°C (91.2°F), showing little deviation from September. Throughout October, Nismes witnesses a consistent average low-temperature of 23.5°C (74.3°F).

Heat index

The average heat index in October is evaluated at a blazing hot 47°C (116.6°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

September and October, with an average relative humidity of 78%, are the least humid months in Nismes.

Rainfall

In Nismes, during October, the rain falls for 23.2 days and regularly aggregates up to 85mm (3.35") of precipitation. Throughout the year, in Nismes, Guyana, there are 312.9 rainfall days, and 1254mm (49.37") of precipitation is accumulated.

Daylight

In October, the average length of the day in Nismes is 11h and 58min.
On the first day of October, sunrise is at 05:40 and sunset at 17:44. On the last day of the month, sunrise is at 05:40 and sunset at 17:33 -04.

Sunshine

In Nismes, the average sunshine in October is 8.1h.

UV index

March, April, July through November, with an average maximum UV index of 7, are months with the highest UV index in Nismes, Guyana. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In October, the UV index of 7 transforms into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.