October weather forecast
Riacho de Santana, Brazil

October, like September, is another hot spring month in Riacho de Santana, Brazil, with temperature in the range of an average high of 34.6°C (94.3°F) and an average low of 21.9°C (71.4°F).

Temperature

Riacho de Santana records a slight change with October's average high-temperatures adjusting to a still tropical 34.6°C (94.3°F) from September's 34.7°C (94.5°F). Throughout October nights, Riacho de Santana reports a steady thermal contrast from the day, with an average low-temperature of 21.9°C (71.4°F).

Heat index

The heat index value during October is evaluated at a blisteringly hot 40°C (104°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in October is 51%.

Rainfall

In October, in Riacho de Santana, the rain falls for 9.8 days. Throughout October, 62mm (2.44") of precipitation is accumulated. In Riacho de Santana, during the entire year, the rain falls for 131.5 days and collects up to 692mm (27.24") of precipitation.

Daylight

In October, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 05:34 and sunset at 17:48. On the last day of October, sunrise is at 05:17 and sunset at 17:53 -03.

Sunshine

In October, the average sunshine in Riacho de Santana, Brazil, is 9.3h.

UV index

February, August through October, with an average maximum UV index of 7, are months with the highest UV index in Riacho de Santana. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In October, the maximum UV index of 7 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.