October weather forecastSantarém, Brazil
October
Weather in October
October, the same as September, in Santarém, Brazil, is another hot spring month, with an average temperature ranging between min 25.8°C (78.4°F) and max 34.5°C (94.1°F).Temperature
Temperature readings reach their annual highs in October, averaging 34.5°C (94.1°F) and a minimum average of 25.8°C (78.4°F).Heat index
October's average heat index is evaluated at a life-threatening hot 45°C (113°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.Understanding the heat index involves considering values for shaded locales with light wind. 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 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. 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. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in October in Santarém is 64%.Rainfall
In Santarém, in October, it is raining for 15.3 days, with typically 60mm (2.36") of accumulated precipitation. Throughout the year, there are 259.2 rainfall days, and 2234mm (87.95") of precipitation is accumulated.Daylight
In Santarém, the average length of the day in October is 12h and 10min.On the first day of October in Santarém, sunrise is at 06:24 and sunset at 18:32. On the last day of the month, sunrise is at 06:16 and sunset at 18:28 -03.
Sunshine
In October, the average sunshine in Santarém, Brazil, is 9.5h.UV index
The months with the highest UV index are January, April through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 7 in October transforms into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Santarém, Brazil
- Average high temperature in October: 34.5°C
The warmest month (with the highest average high temperature) is October (34.5°C).
The month with the lowest average high temperature is April (29.3°C).
- Average low temperature in October: 25.8°C
The months with the highest average low temperature are October and November (25.8°C).
The coldest month (with the lowest average low temperature) is July (23.6°C).
Average pressure in October
Santarém, Brazil
- Average pressure in October: 1009.2mbar
The months with the highest atmospheric pressure are June and July (1012.5mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in October
Santarém, Brazil
- Average wind speed in October: 8.1km/h
The windiest months (with the highest average wind speed) are September and December (8.4km/h).
The calmest months (with the lowest average wind speed) are April and May (6.9km/h).
Average humidity in October
Santarém, Brazil
- Average humidity in October: 64%
The month with the highest relative humidity is April (86%).
The month with the lowest relative humidity is September (63%).
Average rainfall in October
Santarém, Brazil
- Average rainfall in October: 60mm
The wettest month (with the highest rainfall) is April (372mm).
The driest month (with the least rainfall) is August (32mm).
Average rainfall days in October
Santarém, Brazil
- Average rainfall days in October: 15.3 days
The month with the highest number of rainy days is May (29.2 days).
The month with the least rainy days is August (10.8 days).
Average daylight in October /
Average sunshine in October
Santarém, Brazil
- Average daylight in October: 12h and 12min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in October: 9h and 30min
The month with the most sunshine is September (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in October
Santarém, Brazil
- Average sunshine days in October: 13.8 days
The month with the most sunshine days is August (17.5 days).
The month with the least sunshine days is April (1.1 days).
Average UV index in October
Santarém, Brazil
- Average UV index in October: 7
The months with the highest UV index are January, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are February and March (UV index 6).
Average cloud cover in October
Santarém, Brazil
- Average cloud cover in October: 27
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are August and September (Cloud cover 21).
Average visibility in October
Santarém, Brazil
- Average visibility in October: 10km
The months with the highest visibility are July, August, September, October and November (10km).
The months with the lowest visibility are March, April and May (8km).
