October weather forecast
Marapanim, Brazil

October, like September, is another tropical spring month in Marapanim, Brazil, with an average temperature varying between 31.5°C (88.7°F) and 25°C (77°F).

Temperature

The highest temperatures are recorded in October, with averages reaching a high of 31.5°C (88.7°F) and a low of 25°C (77°F).

Heat index

The heat index for October is calculated to be a scorching 41°C (105.8°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Heat index values are typically calculated for conditions of shade and a light breeze. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The months with the lowest humidity are October and November, with an average relative humidity of 76%.

Rainfall

October is the month with the least rainfall. Rain falls for 18.8 days and accumulates 41mm (1.61") of precipitation.

Sea temperature

September and October, with an average sea temperature of 28.4°C (83.1°F), are months with the coldest seawater.
Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.

Daylight

In Marapanim, the average length of the day in October is 12h and 8min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:03. On the last day of October, in Marapanim, sunrise is at 05:50 and sunset at 17:58 -03.

Sunshine

October has the most sunshine of the year, with an average of 10.4h of sunshine.

UV index

January, June through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 7 in October suggests the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Alert! UV radiation becomes sharper due to reflections from sand and water.