September weather forecastMella, Cuba

September

Weather in September

The first month of the autumn, September, is still a tropical month in Mella, Cuba, with an average temperature fluctuating between 22.7°C (72.9°F) and 31.5°C (88.7°F).

Temperature

September's arrival brings an average high-temperature of a still tropical 31.5°C (88.7°F), demonstrating subtle variation from the preceding month. Nighttime temperature lowers to an average of 22.7°C (72.9°F) in September.

Heat index

In September, the average heat index is estimated at an extremely hot 43°C (109.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
The metrics for the heat index are tailored for both shady environments and light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Mella, the average relative humidity in September is 80%.

Rainfall

The month with the most rainfall is September, when the rain falls for 24.7 days and typically aggregates up to 114mm (4.49") of precipitation.

Snowfall

The only month with snowfall in Mella is September. The month with the most snowfall days is September, when snow falls for 0.1 days.

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of the month, sunrise is at 06:48 and sunset at 19:19. On the last day of September, sunrise is at 06:54 and sunset at 18:52 CDT.

Sunshine

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. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Frequently asked questions

The high-temperature during September is 31.5°C (88.7°F) and the low-temperature is 22.7°C (72.9°F). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 43°C (109.4°F).

The average relative humidity in September is 80%.

September is the month with the most rainfall. Rain falls for 24.7 days and accumulates 114mm (4.49") of precipitation.

In Mella, in September, during 24.7 rainfall days, 114mm (4.49") of precipitation is typically accumulated.

The month with the most snowfall days is September, when snow falls for 0.1 days.

September is the first month it typically snows in Mella. Throughout September, there are 0.1 snowfall days.

In September, the average day length is 12h and 15min.

In September, on the first day of the month, sunrise is at 06:48 and sunset at 19:19. On the last day of the month, sunrise is at 06:54 and sunset at 18:52 CDT.

The average sunshine duration in September is 10.9h.

The months with the highest UV index are April through September, with an average maximum UV index of 7.

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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 snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mella, Cuba

  • Average high temperature in September: 31.5°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: 22.7°C

The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (19.2°C).

Average pressure in September
Mella, Cuba

  • Average pressure in September: 1012.9mbar

The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is October (1012.1mbar).

Average wind speed in September
Mella, Cuba

  • Average wind speed in September: 5.5km/h

The windiest month (with the highest average wind speed) is February (7.6km/h).
The calmest month (with the lowest average wind speed) is September (5.5km/h).

Average humidity in September
Mella, Cuba

  • Average humidity in September: 80%

The months with the highest relative humidity are October, November and December (82%).
The month with the lowest relative humidity is March (75%).

Average rainfall in September
Mella, Cuba

  • Average rainfall in September: 114mm

The wettest month (with the highest rainfall) is September (114mm).
The driest month (with the least rainfall) is January (9mm).

Average rainfall days in September
Mella, Cuba

  • Average rainfall days in September: 24.7 days

The month with the highest number of rainy days is September (24.7 days).
The month with the least rainy days is February (6.3 days).

Average snowfall days in September
Mella, Cuba

  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Mella, Cuba

  • Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in September: 10h and 54min

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

Average sunshine days in September
Mella, Cuba

  • Average sunshine days in September: 2.9 days

The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is September (2.9 days).

Average UV index in September
Mella, 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
Mella, Cuba

  • Average cloud cover in September: 25

The months with the most cloud cover are October and November (Cloud cover 30).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in September
Mella, Cuba

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August and September (9km).
The months with the lowest visibility are October, November and December (8km).