October weather forecast
Brazil, Trinidad and Tobago

October

Weather in October

October, the same as September, is a moderately hot autumn month in Brazil, Trinidad and Tobago, with an average temperature fluctuating between 26.6°C (79.9°F) and 29.7°C (85.5°F).

Temperature

As Brazil welcomes October, the average high-temperature records at a moderately hot 29.7°C (85.5°F), marking an insignificant deviation from the prior month. Nights in October cool down in Brazil, indicating a minor disparity from daytime highs with an average low-temperature of 26.6°C (79.9°F).

Heat index

In October, the average heat index is evaluated at a sweltering 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in October in Brazil is 77%.

Rainfall

The month with the most rainfall in Brazil is October, when the rain falls for 20 days and typically aggregates up to 115mm (4.53") of precipitation.

Daylight

The average length of the day in October is 11h and 53min.
On the first day of the month, sunrise is at 05:53 and sunset at 17:55. On the last day of October, sunrise is at 05:56 and sunset at 17:41 AST.

Sunshine

In October, the average sunshine is 8.8h.

UV index

The months with the highest UV index in Brazil are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Brazil, Trinidad and Tobago. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In October, a daily UV index of 7 turns into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Frequently asked questions

How hot is it in Brazil in October?
The average high-temperature and low-temperature in Brazil, Trinidad and Tobago, during October are 29.7°C (85.5°F) and 26.6°C (79.9°F) respectively. In October, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 36°C (96.8°F).
What is the average humidity in October in Brazil?
In Brazil, the average relative humidity in October is 77%.
What is the wettest month in Brazil?
The month with the most rainfall in Brazil, Trinidad and Tobago, is October, when the rain falls for 20 days and typically aggregates up to 115mm (4.53") of precipitation.
How many days does it rain in October in Brazil?
In Brazil, Trinidad and Tobago, during October, the rain falls for 20 days and regularly aggregates up to 115mm (4.53") of precipitation.
What is the average length of the day in October in Brazil?
In Brazil, the average day length in October is 11h and 53min.
What time are sunrise and sunset in October in Brazil?
In October, on the first day of the month, sunrise is at 05:53 and sunset at 17:55. On the last day of the month, sunrise is at 05:56 and sunset at 17:41 AST.
How long on average sun shines in October in Brazil?
In Brazil, the average sunshine duration in October is 8.8h.
When is the highest UV index in Brazil?
The months with the highest UV index in Brazil, Trinidad and Tobago, are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index in Brazil?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in Brazil, Trinidad and Tobago.
What is the UV index intensity in October in Brazil?
In October, the average daily maximum UV index in Brazil, Trinidad and Tobago, is 7. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in October - Brazil, Trinidad and Tobago
Average temperature in October
Brazil, Trinidad and Tobago
  • Average high temperature in October: 29.7°C

The warmest month (with the highest average high temperature) is September (30.1°C).
The month with the lowest average high temperature is January (27.9°C).

  • Average low temperature in October: 26.6°C

The month with the highest average low temperature is October (26.6°C).
The coldest months (with the lowest average low temperature) are January and February (24.8°C).

Average pressure in October - Brazil, Trinidad and Tobago
Average pressure in October
Brazil, Trinidad and Tobago
  • Average pressure in October: 1010.8mbar

The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).

Average wind speed in October - Brazil, Trinidad and Tobago
Average wind speed in October
Brazil, Trinidad and Tobago
  • Average wind speed in October: 14.5km/h

The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is August (13.6km/h).

Average humidity in October - Brazil, Trinidad and Tobago
Average humidity in October
Brazil, Trinidad and Tobago
  • Average humidity in October: 77%

The month with the highest relative humidity is July (79%).
The months with the lowest relative humidity are February, March and April (75%).

Average rainfall in October - Brazil, Trinidad and Tobago
Average rainfall in October
Brazil, Trinidad and Tobago
  • Average rainfall in October: 115mm

The wettest month (with the highest rainfall) is October (115mm).
The driest month (with the least rainfall) is February (14mm).

Average rainfall days in October - Brazil, Trinidad and Tobago
Average rainfall days in October
Brazil, Trinidad and Tobago
  • Average rainfall days in October: 20 days

The month with the highest number of rainy days is August (22.2 days).
The months with the least rainy days are February and April (10.3 days).

Average daylight in October / Average sunshine in October - Brazil, Trinidad and Tobago
Average daylight in October /
Average sunshine in October
Brazil, Trinidad and Tobago
  • Average daylight in October: 11h and 5min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in October: 8h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in October - Brazil, Trinidad and Tobago
Average sunshine days in October
Brazil, Trinidad and Tobago
  • Average sunshine days in October: 8.7 days

The months with the most sunshine days are March and April (15.9 days).
The month with the least sunshine days is August (6.8 days).

Average UV index in October - Brazil, Trinidad and Tobago
Average UV index in October
Brazil, Trinidad and Tobago
  • Average UV index in October: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in October - Brazil, Trinidad and Tobago
Average cloud cover in October
Brazil, Trinidad and Tobago
  • Average cloud cover in October: 32

The month with the most cloud cover is June (Cloud cover 40).
The month with the least cloud cover is September (Cloud cover 27).

Average visibility in October - Brazil, Trinidad and Tobago
Average visibility in October
Brazil, Trinidad and Tobago
  • Average visibility in October: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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