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 snowfall in September
- Average snowfall 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
Weather in September
Temperature
Havana's average high-temperature marks a still tropical 87.3°F (30.7°C) with the advent of September, closely mirroring that of the preceding month. In Havana, the average nighttime temperature during September is a pleasant 69.4°F (20.8°C).Heat index
Throughout September, the heat index is estimated at a sweltering 102.2°F (39°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. With 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 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
In September, the average relative humidity is 77%.Rainfall
In Havana, in September, it is raining for 17.5 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 174.5 rainfall days, and 33.62" (854mm) of precipitation is accumulated.Snowfall
In Havana, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:00 pm. On the last day of September, in Havana, sunrise is at 7:31 am and sunset at 7:23 pm EDT.
Sunshine
In Havana, Florida, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Havana is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 6 during September translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
How hot is September in Havana?
What is the average humidity in September in Havana?
How many days does it rain in September in Havana?
When it does not snow in Havana?
How many hours of daylight does Havana have in September?
What time are sunrise and sunset in September in Havana?
How many hours of sunshine does Havana have in September?
What is the UV index reading in September in Havana?
Average temperature in September
Havana, FL
- Average high temperature in September: 87.3°F
The warmest months (with the highest average high temperature) are July and August (90.9°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in September: 69.4°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (42.1°F).
Average pressure in September
Havana, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Havana, FL
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Havana, FL
- Average humidity in September: 77%
The months with the highest relative humidity are August and December (78%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Havana, FL
- Average rainfall in September: 2.99"
The wettest months (with the highest rainfall) are July and August (4.37").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days in September
Havana, FL
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (25.2 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in September
Havana, FL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Havana, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Havana, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Havana, FL
- Average sunshine days in September: 11 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in September
Havana, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Havana, FL
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Havana, FL
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, October and November (6mi).
The months with the lowest visibility are July, August, September and December (5mi).
Havana, Florida, USA
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