September weather forecast
Santo Tomás, Cuba

englishespañol中文
Share

Weather in September

The first month of the autumn, September, is also a hot month in Santo Tomás, Cuba, with an average temperature varying between 24.6°C (76.3°F) and 31.3°C (88.3°F).

Temperature

Santo Tomás experiences an average high-temperature of a still hot 31.3°C (88.3°F) in September, subtly different from August's 32.1°C (89.8°F). In Santo Tomás, September is marked by an average low-temperature of 24.6°C (76.3°F).

Heat index

During September, the heat index is computed to be a blistering 42°C (107.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Santo Tomás, in September, during 21.3 rainfall days, 76mm (2.99") of precipitation is typically accumulated. In Santo Tomás, during the entire year, the rain falls for 181.5 days and collects up to 590mm (23.23") of precipitation.

Daylight

In Santo Tomás, the average length of the day in September is 12h and 16min.
On the first day of September, sunrise is at 06:58 and sunset at 19:31. On the last day of the month, sunrise is at 07:06 and sunset at 19:03 CDT.

Sunshine

In September, the average sunshine in Santo Tomás is 9.6h.

UV index

The months with the highest UV index are March through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
[Resources]

Frequently asked questions

How hot is it in Santo Tomás in September?

The average high-temperature and low-temperature in Santo Tomás during September are 31.3°C (88.3°F) and 24.6°C (76.3°F) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 42°C (107.6°F).

What is the average humidity in September in Santo Tomás?

The average relative humidity in September in Santo Tomás is 80%.

How much does it rain in Santo Tomás in September?

In Santo Tomás, in September, it is raining for 21.3 days, with typically 76mm (2.99") of accumulated precipitation.

What is the average length of the day in September in Santo Tomás?

The average day length in September in Santo Tomás is 12h and 16min.

When is the sunrise / sunset in September in Santo Tomás?

In September, on the first day of the month, sunrise is at 06:58 and sunset at 19:31. On the last day of the month, in Santo Tomás, Cuba, sunrise is at 07:06 and sunset at 19:03 CDT.

How many hours of sunshine does Santo Tomás have in September?

In Santo Tomás, the average sunshine duration in September is 9.6h.

What are the months with the highest UV index in Santo Tomás?

March through October, with an average maximum UV index of 7, are months with the highest UV index in Santo Tomás, Cuba.

What is the UV index intensity in September in Santo Tomás?

In September, the average daily maximum UV index in Santo Tomás is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in September
Santo Tomás, Cuba

Average temperature in September - Santo Tomás, Cuba
  • Average high temperature in September: 31.3°C

The warmest month (with the highest average high temperature) is August (32.1°C).
The month with the lowest average high temperature is January (27°C).

  • Average low temperature in September: 24.6°C

The month with the highest average low temperature is August (25.5°C).
The coldest month (with the lowest average low temperature) is January (20.3°C).

[Resources]

Average pressure in September
Santo Tomás, Cuba

Average pressure in September - Santo Tomás, Cuba
  • Average pressure in September: 1013mbar

The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).

[Resources]

Average wind speed in September
Santo Tomás, Cuba

Average wind speed in September - Santo Tomás, Cuba
  • Average wind speed in September: 10km/h

The windiest month (with the highest average wind speed) is November (13.9km/h).
The calmest month (with the lowest average wind speed) is June (9.8km/h).

[Resources]

Average humidity in September
Santo Tomás, Cuba

Average humidity in September - Santo Tomás, Cuba
  • Average humidity in September: 80%

The month with the highest relative humidity is October (81%).
The month with the lowest relative humidity is March (71%).

[Resources]

Average rainfall in September
Santo Tomás, Cuba

Average rainfall in September - Santo Tomás, Cuba
  • Average rainfall in September: 76mm

The wettest month (with the highest rainfall) is October (91mm).
The driest months (with the least rainfall) are February and March (14mm).

[Resources]

Average rainfall days in September
Santo Tomás, Cuba

Average rainfall days in September - Santo Tomás, Cuba
  • Average rainfall days in September: 21.3 days

The months with the highest number of rainy days are August and October (21.7 days).
The month with the least rainy days is February (6.6 days).

[Resources]

Average daylight in September /
Average sunshine in September
Santo Tomás, Cuba

Average daylight in September / Average sunshine in September - Santo Tomás, Cuba
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 6h and 54min).

[Resources]

Average sunshine days in September
Santo Tomás, Cuba

Average sunshine days in September - Santo Tomás, Cuba
  • Average sunshine days in September: 7.5 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is August (6.4 days).

[Resources]

Average UV index in September
Santo Tomás, Cuba

Average UV index in September - Santo Tomás, Cuba
  • Average UV index in September: 7

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

[Resources]

Average cloud cover in September
Santo Tomás, Cuba

Average cloud cover in September - Santo Tomás, Cuba
  • Average cloud cover in September: 26

The month with the most cloud cover is October (Cloud cover 31).
The month with the least cloud cover is February (Cloud cover 24).

[Resources]

Average visibility in September
Santo Tomás, Cuba

Average visibility in September - Santo Tomás, Cuba
  • Average visibility in September: 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).

[Resources]

Santo Tomás, Cuba

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location