September weather forecast and climate
Trinidad, Cuba

The first month of the autumn, September, is also a moderately hot month in Trinidad, Cuba, with average temperature varying between 29.3°C (84.7°F) and 23.9°C (75°F).

Temperature

In Trinidad, the average high-temperature is almost the same as in August - a moderately hot 29.3°C (84.7°F). In Trinidad, in September, the average low-temperature is 23.9°C (75°F).

Heat index

The average heat index is evaluated at a sweltering 36.3°C (97.3°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy 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 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

Months with the highest humidity are September and October, with an average relative humidity of 83%.

Rainfall

Months with the most rainfall are May and September, with an average 196mm (7.72") of precipitation.

Sea temperature

August and September, with an average sea temperature of 30°C (86°F), are months with the warmest seawater.
Note: The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

Daylight

In September, the average length of the day in Trinidad, Cuba, is 12.3h.

Sunshine

The average sunshine in September is 9.2h.

UV index

Months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Trinidad?

The average high-temperature, in September, in Trinidad, is 29.3°C (84.7°F), while the average low-temperature is 23.9°C (75°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines air temperature and relative humidity, is evaluated at 36.3°C (97.3°F).

What are the most humid months in Trinidad?

Months with the highest humidity in Trinidad, Cuba, are September and October, with an average relative humidity of 83%.

What is the average humidity in September in Trinidad?

In September, the average relative humidity in Trinidad is 83%.

How much does it rain in Trinidad in September?

In September, in Trinidad, Cuba, the rain falls for 27.3 days. Throughout September, 196mm (7.72") of precipitation is accumulated.

What is the rainiest month in Trinidad?

The wettest months in Trinidad, Cuba, are May and September, with an average 196mm (7.72") of rainfall.

What months are the sea warmest in Trinidad?

Months with the warmest seawater are August and September, with an average sea temperature of 30°C (86°F).

What is the sea temperature in September in Trinidad?

In Trinidad, Cuba, the average seawater temperature in September is 30°C (86°F). For swimming, other intense water activities, temperature above 30°C (86°F) is arguably unpleasant, as the water cooling effect is missing.

What is the average length of the day in September in Trinidad?

In Trinidad, Cuba, the average length of the day in September is 12.3h.

How many hours of sunshine does Trinidad have in September?

The average sunshine in September in Trinidad, Cuba, is 9.2h.

When is the highest UV index in Trinidad?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in September in Trinidad?

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.
Average temperature in September - Trinidad, Cuba
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is August (30.1°C).
The month with the lowest average high temperature is January (25.3°C).

  • Average low temperature in September: 23.9°C

The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (18.7°C).

Average humidity in September - Trinidad, Cuba
  • Average humidity in September: 83%

Months with the highest relative humidity are September and October (83%).
The month with the lowest relative humidity is March (75%).

Average rainfall in September - Trinidad, Cuba
  • Average rainfall in September: 196mm

The wettest months (with the highest rainfall) are May and September (196mm).
The driest month (with the least rainfall) is March (21mm).

Average rainfall days in September - Trinidad, Cuba
  • Average rainfall days in September: 27.3 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is February (6.9 days).

Average sea temperature in September - Trinidad, Cuba
  • Average sea temperature in September: 30°C

The best months for swimming (with the highest average sea temperature) are August and September (30°C).
The coldest months (with the lowest average sea temperature) are January, February and March (26°C).

Average daylight in September / Average sunshine in September - Trinidad, Cuba
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.5h).
The month with the shortest days is December (Average daylight: 10.8h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is November (Average sunshine: 6.8h).

Average UV index in September - Trinidad, Cuba
  • Average UV index in September: 7

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 6).