Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Las Guásimas marks the start of September with an average high-temperature of a still tropical 31.2°C (88.2°F), hinting at a slight fluctuation from August's 32.1°C (89.8°F). Las Guásimas usually reports an average low-temperature of 22.5°C (72.5°F) during the month of September.Heat index
For September, the heat index is estimated at a blisteringly hot 42°C (107.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity is 81%.Rainfall
In Las Guásimas, in September, during 25.8 rainfall days, 136mm (5.35") of precipitation is typically accumulated. Throughout the year, there are 233.3 rainfall days, and 982mm (38.66") of precipitation is accumulated.Daylight
In Las Guásimas, the average length of the day in September is 12h and 15min.On the first day of September, sunrise is at 06:47 and sunset at 19:17. On the last day of the month, sunrise is at 06:53 and sunset at 18:51 CDT.
Sunshine
The average sunshine in September is 10.6h.UV index
The months with the highest UV index in Las Guásimas are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 7 transforms into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure 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
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Las Guásimas have in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Las Guásimas, 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 (28°C).
- Average low temperature in September: 22.5°C
The month with the highest average low temperature is August (22.6°C).
The coldest month (with the lowest average low temperature) is January (18.9°C).
Average pressure in September
Las Guásimas, Cuba
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is October (1012.1mbar).
Average wind speed in September
Las Guásimas, Cuba
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is February (7.7km/h).
The calmest month (with the lowest average wind speed) is September (5.6km/h).
Average humidity in September
Las Guásimas, Cuba
- Average humidity in September: 81%
The months with the highest relative humidity are October and November (83%).
The month with the lowest relative humidity is March (76%).
Average rainfall in September
Las Guásimas, Cuba
- Average rainfall in September: 136mm
The wettest month (with the highest rainfall) is May (161mm).
The driest month (with the least rainfall) is February (21mm).
Average rainfall days in September
Las Guásimas, Cuba
- Average rainfall days in September: 25.8 days
The month with the highest number of rainy days is September (25.8 days).
The month with the least rainy days is February (9.2 days).
Average daylight in September /
Average sunshine in September
Las Guásimas, Cuba
- Average daylight in September: 12h and 1min
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 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in September
Las Guásimas, Cuba
- Average sunshine days in September: 2.2 days
The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is September (2.2 days).
Average UV index in September
Las Guásimas, Cuba
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 6).
Average cloud cover in September
Las Guásimas, Cuba
- Average cloud cover in September: 27
The months with the most cloud cover are May, October and November (Cloud cover 33).
The months with the least cloud cover are February and July (Cloud cover 25).
Average visibility in September
Las Guásimas, Cuba
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, June, July, August and December (9km).
The months with the lowest visibility are May, September, October and November (8km).
