October weather forecast
Princesa Isabel, Brazil

October, the same as September, in Princesa Isabel, Brazil, is a hot spring month, with an average temperature fluctuating between 33.4°C (92.1°F) and 21.1°C (70°F).

Temperature

Princesa Isabel greets October with an average high-temperature of a still tropical 33.4°C (92.1°F), marking a slight deviation from the preceding month. Princesa Isabel, in October, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 21.1°C (70°F).

Heat index

For most parts of October, the heat index is evaluated at a very hot 38°C (100.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In October, the average relative humidity is 52%.

Rainfall

In Princesa Isabel, in October, it is raining for 6.5 days, with typically 18mm (0.71") of accumulated precipitation. Throughout the year, in Princesa Isabel, there are 140.8 rainfall days, and 430mm (16.93") of precipitation is accumulated.

Daylight

In October, the average length of the day is 12h and 17min.
On the first day of the month, sunrise is at 05:16 and sunset at 17:26. On the last day of October, sunrise is at 05:04 and sunset at 17:27 -03.

Sunshine

October has the most sunshine of the year in Princesa Isabel, with an average of 9.4h of sunshine.

UV index

February, March, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during October leads to these advisories:
Deter overexposure. Protecting against the sun's effects is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.