August weather forecast and climate
Havana, Cuba

The front yard of the Gran Teatro in Havana, Cuba, with a display of colored vintage cars
The front yard of the Gran Teatro in Havana, Cuba, with a display of colored vintage cars
August, the last month of the summer, in Havana, is another hot month, with temperature in the range of an average low of 24.1°C (75.4°F) and an average high of 31.6°C (88.9°F).

Temperature

The warmest month is August, with an average high-temperature of 31.6°C (88.9°F) and an average low-temperature of 24.1°C (75.4°F).

Heat index

In August, the average heat index is estimated at a scorching 42.2°C (108°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. 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 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, differences in body mass, height, and shape, metabolic differences, and wind affect individual temperature impact. 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 particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Havana, Cuba, the average relative humidity in August is 78%.

Rainfall

In Havana, during August, the rain falls for 9 days and regularly aggregates up to 99.6mm (3.92") of precipitation. Throughout the year, in Havana, there are 80 rainfall days, and 1189.2mm (46.82") of precipitation is accumulated.

Sea temperature

August is the month with the warmest seawater in Havana, Cuba, with an average sea temperature of 30.2°C (86.4°F).
Note: For swimming, other intense water activities, temperature above 30°C (86°F) is arguably unpleasant, as the water cooling effect is missing.

Daylight

In Havana, the average length of the day in August is 12.9h.

Sunshine

The average sunshine in Havana is 8h.

UV index

In Havana, Cuba, the average daily maximum UV index is 11. A UV Index reading of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 11 translate into the following recommendations:
Practice all-important precautions. Light skin people may get burned in less than 5 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 reflection of water and sand dramatically increases exposure to the UV rays.

What is the warmest month in Havana?

August is the warmest month in Havana, Cuba, with an average high-temperature of 31.6°C (88.9°F) and an average low-temperature of 24.1°C (75.4°F).

What is the temperature in August in Havana?

In Havana, in August, the average high-temperature is 31.6°C (88.9°F), and the average low-temperature is 24.1°C (75.4°F). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, is estimated at 42.2°C (108°F).

What is the average humidity in August in Havana?

In August, the average relative humidity in Havana, Cuba, is 78%.

How much does it rain in Havana in August?

In August, the rain falls for 9 days. Throughout August, 99.6mm (3.92") of precipitation is accumulated.

What is the month with the warmest sea water in Havana?

With an average sea temperature of 30.2°C (86.4°F), August is the month with the warmest seawater.

What is the sea temperature in August in Havana?

In August, the average sea temperature in Havana is 30.2°C (86.4°F). For swimming, other intense water activities, temperature above 30°C (86°F) is arguably unpleasant, as the water cooling effect is missing.

How many hours of daylight does Havana have in August?

In August, the average length of the day is 12.9h.

How long on average sun shines in August in Havana?

In August, the average sunshine in Havana is 8h.

What is the UV index intensity in August in Havana?

The average daily maximum UV index in August in Havana, Cuba, is 11. A UV Index of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation.
Average temperature in August - Havana, Cuba
  • Average high temperature in August: 31.6°C

The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (25.8°C).

  • Average low temperature in August: 24.1°C

The month with the highest average low temperature is August (24.1°C).
The coldest months (with the lowest average low temperature) are January and February (18.6°C).

Average humidity in August - Havana, Cuba
  • Average humidity in August: 78%

The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is April (72%).

Average rainfall in August - Havana, Cuba
  • Average rainfall in August: 99.6mm

The wettest month (with the highest rainfall) is June (182.3mm).
The driest month (with the least rainfall) is March (46.2mm).

Average rainfall days in August - Havana, Cuba
  • Average rainfall days in August: 9 days

The month with the highest number of rainy days is October (11 days).
Months with the least rainy days are March and April (3 days).

Average sea temperature in August - Havana, Cuba
  • Average sea temperature in August: 30.2°C

The best month for swimming (with the highest average sea temperature) is August (30.2°C).
The coldest month (with the lowest average sea temperature) is January (24.7°C).

Average daylight in August / Average sunshine in August - Havana, Cuba
  • Average daylight in August: 12.9h

The month with the longest days is June (Average daylight: 13.5h).
The month with the shortest days is December (Average daylight: 10.7h).

  • Average sunshine in August: 8h

The month with the most sunshine is September (Average sunshine: 10h).
Months with the least sunshine are January, February, November and December (Average sunshine: 7).

Average UV index in August - Havana, Cuba
  • Average UV index in August: 11

Months with the highest UV index are April, May and June (UV index 12).
Months with the lowest UV index are January and December (UV index 6).