September weather forecastGuanabana, Cuba
September
Weather in September
The first month of the autumn, September, is also a hot month in Guanabana, Cuba, with an average temperature varying between 31.2°C (88.2°F) and 24.1°C (75.4°F).Temperature
September's average high-temperature is a still tropical 31.2°C (88.2°F), maintaining a close comparison with August's 32.1°C (89.8°F). Guanabana's temperature tends to fall to an average low of 24.1°C (75.4°F) during the nights of September.Heat index
The heat index for September is evaluated at a scorching 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The most humid month is September, with an average relative humidity of 82%.Rainfall
In Guanabana, in September, it is raining for 23 days, with typically 95mm (3.74") of accumulated precipitation. Throughout the year, there are 204.4 rainfall days, and 774mm (30.47") of precipitation is accumulated.Daylight
In Guanabana, the average length of the day in September is 12h and 16min.On the first day of the month, sunrise is at 07:08 and sunset at 19:43. On the last day of September, sunrise is at 07:17 and sunset at 19:14 CDT.
Sunshine
In Guanabana, the average sunshine in September is 8.8h.UV index
The months with the highest UV index in Guanabana, Cuba, are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 in September translates into these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Guanabana, Cuba
- Average high temperature in September: 31.2°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 (25.2°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (18.6°C).
Average pressure in September
Guanabana, Cuba
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is January (1018.4mbar).
The month with the lowest atmospheric pressure is October (1013.1mbar).
Average wind speed in September
Guanabana, Cuba
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is March (13.1km/h).
The calmest month (with the lowest average wind speed) is September (9.5km/h).
Average humidity in September
Guanabana, Cuba
- Average humidity in September: 82%
The month with the highest relative humidity is September (82%).
The months with the lowest relative humidity are March and April (71%).
Average rainfall in September
Guanabana, Cuba
- Average rainfall in September: 95mm
The wettest month (with the highest rainfall) is August (119mm).
The driest month (with the least rainfall) is March (19mm).
Average rainfall days in September
Guanabana, Cuba
- Average rainfall days in September: 23 days
The month with the highest number of rainy days is June (23.5 days).
The month with the least rainy days is March (10.8 days).
Average daylight in September /
Average sunshine in September
Guanabana, Cuba
- Average daylight in September: 12h and 18min
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: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in September
Guanabana, Cuba
- Average sunshine days in September: 4.8 days
The month with the most sunshine days is March (17.8 days).
The month with the least sunshine days is June (4.3 days).
Average UV index in September
Guanabana, 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
Guanabana, Cuba
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in September
Guanabana, Cuba
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June and November (10km).
The months with the lowest visibility are January, February, July, August, September, October and December (9km).
