São Luís
Brazil
Long-term weather forecast
Long-term weather forecast

November weather forecast and climate
São Luís, Brazil

November, the last month of the spring, in São Luís, is also a hot month, with average temperature ranging between min 24°C (75.2°F) and max 31.4°C (88.5°F).
The ideal sea water temperature of 27.8°C (82°F) and only 1 rainfall days, with 10.5mm (0.4") of accumulated rainfall, make November the best time for swimming and other water activities.

Temperature

The warmest month in São Luís is November, with an average high-temperature of 31.4°C (88.5°F) and an average low-temperature of 24°C (75.2°F).

Heat index

The average heat index is calculated to a scorching 41.9°C (107.4°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, wind, metabolic differences). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In São Luís, the average relative humidity in November is 79%.

Rainfall

In São Luís, during November, the rain falls for 1 days and regularly aggregates up to 10.5mm (0.4") of precipitation. Throughout the year, there are 130 rainfall days, and 2290.2mm (90.2") of precipitation is accumulated.

Sea temperature

In November, the average sea temperature is 27.8°C (82°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In November, the average length of the day in São Luís is 12.2h.

Sunshine

In November, the average sunshine is 8.1h.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 12 transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the warmest month in São Luís?

November is the warmest month, with an average high-temperature of 31.4°C (88.5°F) and an average low-temperature of 24°C (75.2°F).

What is the temperature in November in São Luís?

In November, in São Luís, the average high-temperature is 31.4°C (88.5°F), and the average low-temperature is 24°C (75.2°F). In November, the average heat index (a.k.a. 'real feel', 'feels like'), that calculates temperature value influenced by the moisture in the air, is estimated at 41.9°C (107.4°F).

What is the average humidity in November in São Luís?

In São Luís, Brazil, the average relative humidity in November is 79%.

How much does it rain in São Luís in November?

In São Luís, during November, the rain falls for 1 days and regularly aggregates up to 10.5mm (0.4") of precipitation.

What is the water temperature in November in São Luís?

In São Luís, Brazil, in November, the average water temperature is 27.8°C (82°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does São Luís have in November?

The average length of the day in November in São Luís, Brazil, is 12.2h.

How long on average sun shines in November in São Luís?

In São Luís, the average sunshine in November is 8.1h.

What is the month with the highest UV index in São Luís?

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index in São Luís.

What is the UV index reading in November in São Luís?

The average daily maximum UV index in November in São Luís is 12. A UV Index reading of 11, and higher, represents an ultimate hazard to health from the exposure to the Sun's UV radiation.
Average temperature in November - São Luís, Brazil
  • Average high temperature in November: 31.4°C

The warmest month (with the highest average high temperature) is November (31.4°C).
Months with the lowest average high temperature are February and March (29.4°C).

  • Average low temperature in November: 24°C

Months with the highest average low temperature are November and December (24°C).
The coldest month (with the lowest average low temperature) is July (22.6°C).

Average humidity in November - São Luís, Brazil
  • Average humidity in November: 79%

The month with the highest relative humidity is April (90%).
The month with the lowest relative humidity is December (71%).

Average rainfall in November - São Luís, Brazil
  • Average rainfall in November: 10.5mm

The wettest month (with the highest rainfall) is April (475.9mm).
The driest month (with the lowest rainfall) is October (7.6mm).

Average rainfall days in November - São Luís, Brazil
  • Average rainfall days in November: 1 days

The month with the highest number of rainy days is March (23 days).
Months with the lowest number of rainy days are October and November (1 days).

Average sea temperature in November - São Luís, Brazil
  • Average sea temperature in November: 27.8°C

The best month for swimming (with the highest average sea temperature) is March (28.9°C).
The coldest month (with the lowest average sea temperature) is September (27.3°C).

Average daylight in November / Average sunshine in November - São Luís, Brazil
  • Average daylight in November: 12.2h

Months with the longest days are January and December (Average daylight: 12.3h).
Months with shortest days are May, June, July and August (Average daylight: 12h).

  • Average sunshine in November: 8.1h

The month with most sunshine is August (Average sunshine: 8.4h).
The month with least sunshine is March (Average sunshine: 3.5h).

Average UV index in November - São Luís, Brazil
  • Average UV index in November: 12

Months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 10).