August weather forecast
Joanna, Guyana

The last month of the summer, August, is a tropical month in Joanna, Guyana, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 30.3°C (86.5°F).

Temperature

Joanna measures an average high-temperature of a tropical 30.3°C (86.5°F) in August, nearly consistent with the preceding month. A minimal decline in temperature from daytime highs is anticipated throughout the August nights, averaging a warm 25.5°C (77.9°F).

Heat index

For most parts of August, the heat index is computed to be a fiery hot 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In August, the average relative humidity is 78%.

Rainfall

In August, the rain falls for 28 days. Throughout August, 229mm (9.02") of precipitation is accumulated. Throughout the year, there are 312.6 rainfall days, and 2298mm (90.47") of precipitation is accumulated.

Daylight

The average length of the day in August is 12h and 19min.
On the first day of the month, sunrise is at 05:43 and sunset at 18:06. On the last day of August, sunrise is at 05:42 and sunset at 17:56 -04.

Sunshine

In Joanna, the average sunshine in August is 8.8h.

UV index

The months with the highest UV index are January, February, April, June through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 in August translates into these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.