Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October is the month when São Caetano de Odivelas sees the highest average temperatures, with a high of 31.5°C (88.7°F) and a low of 25°C (77°F).Heat index
In October, the heat index is evaluated at an extremely hot 41°C (105.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
October and November, with an average relative humidity of 76%, are the least humid months in São Caetano de Odivelas.Rainfall
October is the month with the least rainfall. Rain falls for 18.8 days and accumulates 41mm (1.61") of precipitation.Sea temperature
With an average sea temperature of 28.4°C (83.1°F), October is the month with the coldest seawater.Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.
Daylight
In October, the average length of the day in São Caetano de Odivelas is 12h and 8min.On the first day of October, sunrise is at 05:57 and sunset at 18:05. On the last day of the month, sunrise is at 05:51 and sunset at 17:59 -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 in São Caetano de Odivelas. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In October, an average UV index of 7 transforms into the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Warning! The reflection of sand and water increases the UV dose.
Frequently asked questions
What is the warmest month in São Caetano de Odivelas?
How hot is October in São Caetano de Odivelas?
What are the least humid months in São Caetano de Odivelas?
What is the average humidity in October in São Caetano de Odivelas?
What is the driest month in São Caetano de Odivelas?
How much does it rain in São Caetano de Odivelas in October?
What is the month with the coldest sea water in São Caetano de Odivelas?
What is the water temperature in October in São Caetano de Odivelas?
What is the average length of the day in October in São Caetano de Odivelas?
When is the sunrise / sunset in October in São Caetano de Odivelas?
What month has the most sunshine in São Caetano de Odivelas?
How long on average sun shines in October in São Caetano de Odivelas?
When is the highest UV index in São Caetano de Odivelas?
How high is the UV index in October in São Caetano de Odivelas?
Average temperature in October
São Caetano de Odivelas, Brazil
- Average high temperature in October: 31.5°C
The warmest month (with the highest average high temperature) is October (31.5°C).
The month with the lowest average high temperature is March (28.7°C).
- Average low temperature in October: 25°C
The month with the highest average low temperature is November (25.3°C).
The coldest month (with the lowest average low temperature) is July (23.9°C).
Average pressure in October
São Caetano de Odivelas, Brazil
- Average pressure in October: 1010.3mbar
The month with the highest atmospheric pressure is July (1012.7mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in October
São Caetano de Odivelas, Brazil
- Average wind speed in October: 14.6km/h
The windiest month (with the highest average wind speed) is November (14.7km/h).
The calmest month (with the lowest average wind speed) is May (9.9km/h).
Average humidity in October
São Caetano de Odivelas, Brazil
- Average humidity in October: 76%
The month with the highest relative humidity is April (87%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in October
São Caetano de Odivelas, Brazil
- Average rainfall in October: 41mm
The wettest month (with the highest rainfall) is March (359mm).
The driest month (with the least rainfall) is October (41mm).
Average rainfall days in October
São Caetano de Odivelas, Brazil
- Average rainfall days in October: 18.8 days
The month with the highest number of rainy days is March (30.7 days).
The months with the least rainy days are October and November (18.8 days).
Average sea temperature in October
São Caetano de Odivelas, Brazil
- Average sea temperature in October: 28.4°C
The best months for swimming (with the highest average sea temperature) are January, May, June, July, August and November (28.8°C).
The coldest month (with the lowest average sea temperature) is October (28.4°C).
Average daylight in October /
Average sunshine in October
São Caetano de Odivelas, Brazil
- Average daylight in October: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in October: 10h and 2min
The month with the most sunshine is October (Average sunshine: 10h and 24min).
The months with the least sunshine are February and April (Average sunshine: 6h and 48min).
Average sunshine days in October
São Caetano de Odivelas, Brazil
- Average sunshine days in October: 8.8 days
The month with the most sunshine days is October (8.8 days).
The months with the least sunshine days are February, March and April (0.2 days).
Average UV index in October
São Caetano de Odivelas, Brazil
- Average UV index in October: 7
The months with the highest UV index are January, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are February, March, April and May (UV index 6).
Average cloud cover in October
São Caetano de Odivelas, Brazil
- Average cloud cover in October: 31
The month with the most cloud cover is April (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility in October
São Caetano de Odivelas, 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).
São Caetano de Odivelas, Brazil
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