July weather forecast
Chumael, Guinea-Bissau

July, like June, is another tropical summer month in Chumael, Guinea-Bissau, with an average temperature ranging between max 31.1°C (88°F) and min 24.3°C (75.7°F).

Temperature

Transitioning from June to July involves a subtle drop in average high-temperatures, descending from 34.8°C (94.6°F) to a still hot 31.1°C (88°F). Throughout the month of July, Chumael sees a steady low-temperature average of 24.3°C (75.7°F).

Heat index

The average heat index in July is computed to be an extremely hot 42°C (107.6°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Note that heat index values are valued for light wind and location in the shade. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In July, the average relative humidity is 81%.

Rainfall

In Chumael, during July, the rain falls for 22.8 days and regularly aggregates up to 257mm (10.12") of precipitation. Throughout the year, in Chumael, there are 109.7 rainfall days, and 868mm (34.17") of precipitation is accumulated.

Daylight

In July, the average length of the day is 12h and 44min.
On the first day of July, sunrise is at 06:38 and sunset at 19:26. On the last day of the month, sunrise is at 06:45 and sunset at 19:24 GMT.

Sunshine

In July, the average sunshine is 5.8h.

UV index

The months with the highest UV index are January through July, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In July, the UV index of 7 transforms into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.