September weather forecast
Endeavour, Jamaica

September

Weather in September

September, the first month of the autumn in Endeavour, is also a moderately hot month, with temperature in the range of an average high of 29.4°C (84.9°F) and an average low of 26.2°C (79.2°F).

Temperature

September's weather records an average high-temperature of a still warm 29.4°C (84.9°F), showing little deviation from August. Recording a slight drop from the daily maximum, Endeavour notes an average low temperature of 26.2°C (79.2°F) in the month of September.

Heat index

September's average heat index is appraised at a torrid 35°C (95°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. 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 are highly important for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September is 78%.

Rainfall

In Endeavour, in September, during 18.2 rainfall days, 88mm (3.46") of precipitation is typically accumulated. In Endeavour, during the entire year, the rain falls for 219.4 days and collects up to 663mm (26.1") of precipitation.

Snowfall

The only month with snowfall is September. September is the month with the most snowfall. Snow falls for 0.1 days and accumulates 1mm (0.04") of snow.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:22. On the last day of September, sunrise is at 05:58 and sunset at 17:57 EST.

Sunshine

August and September, with an average of 11.3h of sunshine, are months with the most sunshine.

UV index

April through December, with an average maximum UV index of 7, are months with the highest UV index in Endeavour. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 7 during September translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

Is it hot in Endeavour during September?
Endeavour in September has an average high-temperature of 29.4°C (84.9°F) and an average low-temperature of 26.2°C (79.2°F). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is appraised at 35°C (95°F).
What is the average humidity in September?
In Endeavour, the average relative humidity in September is 78%.
How many days does it rain in September?
In Endeavour, Jamaica, in September, it is raining for 18.2 days, with typically 88mm (3.46") of accumulated precipitation.
What is the snowiest month?
September is the month with the most snowfall in Endeavour. Snow falls for 0.1 days and accumulates 1mm (0.04") of snow.
When does it start to snow?
September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.
How many hours of daylight does Endeavour have in September?
The average day length in September is 12h and 14min.
When are sunrise and sunset in September in Endeavour?
In September, on the first day of the month, sunrise is at 05:53 and sunset at 18:22. On the last day of the month, in Endeavour, sunrise is at 05:58 and sunset at 17:57 EST.
What is the month with the most sunshine?
August and September, with an average of 11.3h of sunshine, are months with the most sunshine in Endeavour, Jamaica.
How many hours of sunshine does Endeavour have in September?
In Endeavour, the average sunshine duration in September is 11.3h.
What are the months with the highest UV index?
The months with the highest UV index are April through December, with an average maximum UV index of 7.
How high is the UV index in September?
In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high hazard to health 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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Endeavour, Jamaica
  • Average high temperature in September: 29.4°C

The warmest month (with the highest average high temperature) is August (29.7°C).
The months with the lowest average high temperature are February and March (26.6°C).

  • Average low temperature in September: 26.2°C

The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is March (23.1°C).

Average pressure in September
Endeavour, Jamaica
  • Average pressure in September: 1012.4mbar

The month with the highest atmospheric pressure is January (1015.7mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).

Average wind speed in September
Endeavour, Jamaica
  • Average wind speed in September: 13.3km/h

The windiest month (with the highest average wind speed) is June (17.9km/h).
The calmest month (with the lowest average wind speed) is October (13.2km/h).

Average humidity in September
Endeavour, Jamaica
  • Average humidity in September: 78%

The months with the highest relative humidity are May, June, November and December (79%).
The month with the lowest relative humidity is March (77%).

Average rainfall in September
Endeavour, Jamaica
  • Average rainfall in September: 88mm

The wettest month (with the highest rainfall) is October (95mm).
The driest month (with the least rainfall) is February (27mm).

Average rainfall days in September
Endeavour, Jamaica
  • Average rainfall days in September: 18.2 days

The month with the highest number of rainy days is October (23.9 days).
The month with the least rainy days is February (15 days).

Average snowfall in September
Endeavour, Jamaica
  • Average snowfall in September: 1mm

The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).

Average snowfall days in September
Endeavour, Jamaica
  • 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
Endeavour, Jamaica
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in September: 11h and 2min

The months with the most sunshine are August and September (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in September
Endeavour, Jamaica
  • Average sunshine days in September: 3.6 days

The month with the most sunshine days is January (9.6 days).
The month with the least sunshine days is May (3.4 days).

Average UV index in September
Endeavour, Jamaica
  • Average UV index in September: 7

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

Average cloud cover in September
Endeavour, Jamaica
  • Average cloud cover in September: 22

The months with the most cloud cover are November and December (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 22).

Average visibility in September
Endeavour, Jamaica
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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