October weather forecastAlcântara, Brazil
October
Weather in October
October, the same as September, in Alcântara, Brazil, is another hot spring month, with temperature in the range of an average low of 25.7°C (78.3°F) and an average high of 31.1°C (88°F).Temperature
October brings the highest temperatures, with an average high of 31.1°C (88°F) and an average low of 25.7°C (78.3°F).Heat index
For October, the heat index is estimated at a fiery hot 39°C (102.2°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The months with the lowest humidity are September through November, with an average relative humidity of 75%.Rainfall
October is the month with the least rainfall in Alcântara. Rain falls for 13.6 days and accumulates 29mm (1.14") of precipitation.Sea temperature
In Alcântara, in October, the average water temperature is 27.7°C (81.9°F).Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.
Daylight
The average length of the day in October in Alcântara is 12h and 10min.On the first day of the month, sunrise is at 05:43 and sunset at 17:51. On the last day of October, sunrise is at 05:35 and sunset at 17:47 -03.
Sunshine
In Alcântara, the average sunshine in October is 7.3h.UV index
The months with the highest UV index in Alcântara, Brazil, are April, June through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In October, the maximum UV index of 7 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Alcântara, Brazil
- Average high temperature in October: 31.1°C
The warmest month (with the highest average high temperature) is October (31.1°C).
The month with the lowest average high temperature is February (29.1°C).
- Average low temperature in October: 25.7°C
The month with the highest average low temperature is November (26°C).
The coldest month (with the lowest average low temperature) is July (24.2°C).
Average pressure in October
Alcântara, Brazil
- Average pressure in October: 1010.3mbar
The month with the highest atmospheric pressure is July (1013mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in October
Alcântara, Brazil
- Average wind speed in October: 17.9km/h
The windiest month (with the highest average wind speed) is October (17.9km/h).
The calmest month (with the lowest average wind speed) is May (10.2km/h).
Average humidity in October
Alcântara, Brazil
- Average humidity in October: 75%
The months with the highest relative humidity are April and May (84%).
The months with the lowest relative humidity are September, October and November (75%).
Average rainfall in October
Alcântara, Brazil
- Average rainfall in October: 29mm
The wettest month (with the highest rainfall) is April (438mm).
The driest month (with the least rainfall) is October (29mm).
Average rainfall days in October
Alcântara, Brazil
- Average rainfall days in October: 13.6 days
The month with the highest number of rainy days is March (30.7 days).
The month with the least rainy days is October (13.6 days).
Average sea temperature in October
Alcântara, Brazil
- Average sea temperature in October: 27.7°C
The best month for swimming (with the highest average sea temperature) is March (29°C).
The coldest month (with the lowest average sea temperature) is September (27.4°C).
Average daylight in October /
Average sunshine in October
Alcântara, 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: 7h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days in October
Alcântara, Brazil
- Average sunshine days in October: 12.6 days
The month with the most sunshine days is October (12.6 days).
The month with the least sunshine days is February (0 days).
Average UV index in October
Alcântara, Brazil
- Average UV index in October: 7
The months with the highest UV index are April, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, May and December (UV index 6).
Average cloud cover in October
Alcântara, Brazil
- Average cloud cover in October: 39
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in October
Alcântara, Brazil
- Average visibility in October: 10km
The months with the highest visibility are August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June and July (9km).
