September weather forecast
New Kingston, Jamaica

Weather in September

September, the first month of the autumn, in New Kingston, is also a hot month, with average temperature fluctuating between 24.1°C (75.4°F) and 30.1°C (86.2°F).

Temperature

In New Kingston, the average high-temperature in September is relatively the same as in August - a still tropical 30.1°C (86.2°F). In September, in New Kingston, the average low-temperature is 24.1°C (75.4°F).

Heat index

In September, the average heat index is calculated to be a very hot 38.3°C (100.9°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, clothing, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in New Kingston is 81%.

Rainfall

In September, the rain falls for 27.1 days. Throughout September, 154mm (6.06") of precipitation is accumulated. Throughout the year, in New Kingston, there are 310.9 rainfall days, and 1286mm (50.63") of precipitation is accumulated.

Sea temperature

September is the month with the warmest seawater, with an average sea temperature of 29.8°C (85.6°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in New Kingston is 12.2h.

Sunshine

August and September, with an average of 10.8h of sunshine, are months with the most sunshine in New Kingston.

UV index

June through October, 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 vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in September in New Kingston?

The average high-temperature, in September, is 30.1°C (86.2°F), while the average low-temperature is 24.1°C (75.4°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 38.3°C (100.9°F).

What is the average humidity in September in New Kingston?

In September, the average relative humidity in New Kingston is 81%.

How much does it rain in New Kingston in September?

In New Kingston, in September, during 27.1 rainfall days, 154mm (6.06") of precipitation is typically accumulated.

When is the sea warmest in New Kingston?

September is the month with the warmest seawater, with an average sea temperature of 29.8°C (85.6°F).

How warm is the water in September in New Kingston?

In New Kingston, Jamaica, in September, the average water temperature is 29.8°C (85.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does New Kingston have in September?

In New Kingston, the average length of the day in September is 12.2h.

What is the month with the most sunshine in New Kingston?

August and September, with an average of 10.8h of sunshine, are months with the most sunshine.

How many hours of sunshine does New Kingston have in September?

In New Kingston, the average sunshine in September is 10.8h.

What are the months with the highest UV index in New Kingston?

Months with the highest UV index in New Kingston, Jamaica, are June through October, with an average maximum UV index of 7.

How high is the UV index in September in New Kingston?

In New Kingston, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
New Kingston, Jamaica

Average temperature in September - New Kingston, Jamaica
  • Average high temperature in September: 30.1°C

The warmest month (with the highest average high temperature) is August (30.3°C).
Months with the lowest average high temperature are January and February (27.3°C).

  • Average low temperature in September: 24.1°C

The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is February (21.6°C).

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Average pressure in September
New Kingston, Jamaica

Average pressure in September - New Kingston, Jamaica
  • Average pressure in September: 1012.3mbar

The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is October (1011.5mbar).

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Average wind speed in September
New Kingston, Jamaica

Average wind speed in September - New Kingston, Jamaica
  • Average wind speed in September: 8.9km/h

The windiest month (with the highest average wind speed) is June (12.8km/h).
The calmest month (with the lowest average wind speed) is November (8.6km/h).

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Average humidity in September
New Kingston, Jamaica

Average humidity in September - New Kingston, Jamaica
  • Average humidity in September: 81%

The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is March (78%).

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Average rainfall in September
New Kingston, Jamaica

Average rainfall in September - New Kingston, Jamaica
  • Average rainfall in September: 154mm

The wettest month (with the highest rainfall) is October (184mm).
The driest month (with the least rainfall) is February (44mm).

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Average rainfall days in September
New Kingston, Jamaica

Average rainfall days in September - New Kingston, Jamaica
  • Average rainfall days in September: 27.1 days

The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is February (22.1 days).

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Average sea temperature in September
New Kingston, Jamaica

Average sea temperature in September - New Kingston, Jamaica
  • Average sea temperature in September: 29.8°C

The best month for swimming (with the highest average sea temperature) is September (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

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Average daylight in September /
Average sunshine in September
New Kingston, Jamaica

Average daylight in September / Average sunshine in September - New Kingston, Jamaica
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.2h).
The month with the shortest days is December (Average daylight: 11.1h).

  • Average sunshine in September: 10.8h

Months with the most sunshine are August and September (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 6.5h).

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Average sunshine days in September
New Kingston, Jamaica

Average sunshine days in September - New Kingston, Jamaica
  • Average sunshine days in September: 0.8 days

The month with the most sunshine days is January (3.4 days).
The month with the least sunshine days is August (0.3 days).

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Average UV index in September
New Kingston, Jamaica

Average UV index in September - New Kingston, Jamaica
  • Average UV index in September: 7

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

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Average cloud cover in September
New Kingston, Jamaica

Average cloud cover in September - New Kingston, Jamaica
  • Average cloud cover in September: 29

The month with the most cloud cover is June (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in September
New Kingston, Jamaica

Average visibility in September - New Kingston, Jamaica
  • Average visibility in September: 9km

Months with the highest visibility are January, February, March, April, June, July, November and December (10km).
Months with the lowest visibility are May, August, September and October (9km).

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