September weather forecast
Guaninao, Cuba

September

Weather in September

The first month of the autumn, September, is still a hot month in Guaninao, Cuba, with an average temperature fluctuating between 31.4°C (88.5°F) and 22.6°C (72.7°F).

Temperature

Guaninao records an average high-temperature of a still hot 31.4°C (88.5°F) as September arrives, nearly mirroring the previous month's climate. In the month of September, an average of 22.6°C (72.7°F) marks the low-temperature.

Heat index

In September, the heat index is evaluated at a blistering 43°C (109.4°F). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Guaninao, the average relative humidity in September is 81%.

Rainfall

The month with the most rainfall is September, when the rain falls for 26.3 days and typically aggregates up to 125mm (4.92") of precipitation.

Daylight

The average length of the day in September is 12h and 15min.
On the first day of the month, sunrise is at 06:49 and sunset at 19:19. On the last day of September, in Guaninao, sunrise is at 06:55 and sunset at 18:53 CDT.

Sunshine

In Guaninao, the average sunshine in September is 10.9h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index in Guaninao. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

Is it hot during September?
In September, in Guaninao, the average high-temperature is 31.4°C (88.5°F), and the average low-temperature is 22.6°C (72.7°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 43°C (109.4°F).
What is the average humidity in September?
In Guaninao, the average relative humidity in September is 81%.
What is the rainiest month?
The month with the most rainfall is September, when the rain falls for 26.3 days and typically aggregates up to 125mm (4.92") of precipitation.
How much does it rain in September?
In Guaninao, in September, during 26.3 rainfall days, 125mm (4.92") of precipitation is typically accumulated.
What is the average length of the day in September?
In September, the average day length is 12h and 15min.
When is the sunrise / sunset in September in Guaninao?
In September, on the first day of the month, sunrise is at 06:49 and sunset at 19:19. On the last day of the month, sunrise is at 06:55 and sunset at 18:53 CDT.
How long on average sun shines in September?
The average sunshine duration in September is 10.9h.
What is the month with the highest UV index?
The months with the highest UV index in Guaninao are April through September, with an average maximum UV index of 7.
How high is the UV index in September?
The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Guaninao, Cuba
  • Average high temperature in September: 31.4°C

The warmest month (with the highest average high temperature) is July (32.1°C).
The month with the lowest average high temperature is January (27.8°C).

  • Average low temperature in September: 22.6°C

The months with the highest average low temperature are July and August (22.8°C).
The coldest month (with the lowest average low temperature) is March (18.9°C).

Average pressure in September
Guaninao, Cuba
  • Average pressure in September: 1012.9mbar

The month with the highest atmospheric pressure is January (1016.8mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).

Average wind speed in September
Guaninao, Cuba
  • Average wind speed in September: 5.5km/h

The windiest month (with the highest average wind speed) is February (7.5km/h).
The calmest month (with the lowest average wind speed) is September (5.5km/h).

Average humidity in September
Guaninao, Cuba
  • Average humidity in September: 81%

The months with the highest relative humidity are October, November and December (83%).
The month with the lowest relative humidity is March (75%).

Average rainfall in September
Guaninao, Cuba
  • Average rainfall in September: 125mm

The wettest month (with the highest rainfall) is September (125mm).
The driest month (with the least rainfall) is February (16mm).

Average rainfall days in September
Guaninao, Cuba
  • Average rainfall days in September: 26.3 days

The month with the highest number of rainy days is September (26.3 days).
The month with the least rainy days is February (10.2 days).

Average daylight in September /
Average sunshine in September
Guaninao, Cuba
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in September: 10h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 18min).
The months with the least sunshine are January and November (Average sunshine: 6h and 48min).

Average sunshine days in September
Guaninao, Cuba
  • Average sunshine days in September: 2.4 days

The month with the most sunshine days is March (14.7 days).
The month with the least sunshine days is September (2.4 days).

Average UV index in September
Guaninao, Cuba
  • Average UV index in September: 7

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

Average cloud cover in September
Guaninao, Cuba
  • Average cloud cover in September: 25

The month with the most cloud cover is November (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 24).

Average visibility in September
Guaninao, Cuba
  • Average visibility in September: 8km

The months with the highest visibility are February, March, April, June, July and August (9km).
The month with the lowest visibility is November (7km).

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