July weather forecast
Biacha, Guinea-Bissau

July, like June, is another tropical summer month in Biacha, Guinea-Bissau, with an average temperature ranging between min 25.3°C (77.5°F) and max 31.3°C (88.3°F).

Temperature

The onset of July brings with it an average high-temperature of a still hot 31.3°C (88.3°F), showing a negligible variation from the month before. During July, the temperature in Biacha tends to dip to an average of 25.3°C (77.5°F) at night.

Heat index

Throughout July, the heat index is evaluated at an extremely hot 40°C (104°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In Biacha, the average relative humidity in July is 76%.

Rainfall

In Biacha, during July, the rain falls for 22.3 days and regularly aggregates up to 199mm (7.83") of precipitation. Throughout the year, there are 103.1 rainfall days, and 677mm (26.65") of precipitation is accumulated.

Daylight

The average length of the day in July is 12h and 45min.
On the first day of July, sunrise is at 06:43 and sunset at 19:32. On the last day of the month, sunrise is at 06:50 and sunset at 19:30 GMT.

Sunshine

In July, the average sunshine in Biacha is 6.6h.

UV index

July and August, with an average maximum UV index of 6, are months with the lowest UV index in Biacha. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in July translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.