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
As Halse Hall welcomes September, the average high-temperature records at a still hot 30.4°C (86.7°F), marking an insignificant deviation from the prior month. Throughout September, Halse Hall experiences a low-temperature average of 22.9°C (73.2°F).Heat index
For most parts of September, the heat index is calculated to be a torrid 39°C (102.2°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Understand that the heat index values take into account shaded locations and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. 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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity is 81%.Rainfall
In Halse Hall, in September, during 25.9 rainfall days, 132mm (5.2") of precipitation is typically accumulated. In Halse Hall, during the entire year, the rain falls for 279.6 days and collects up to 947mm (37.28") of precipitation.Daylight
The average length of the day in September is 12h and 14min.On the first day of September, sunrise is at 05:54 and sunset at 18:22. On the last day of the month, sunrise is at 05:59 and sunset at 17:58 EST.
Sunshine
In September, the average sunshine is 11.1h.UV index
January through April, September through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
When is the lowest UV index?
How high is the UV index in September?
Average temperature in September
Halse Hall, Jamaica
- Average high temperature in September: 30.4°C
The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (27.8°C).
- Average low temperature in September: 22.9°C
The months with the highest average low temperature are July and August (23.3°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).
Average pressure in September
Halse Hall, Jamaica
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is January (1015.4mbar).
The month with the lowest atmospheric pressure is October (1011.4mbar).
Average wind speed in September
Halse Hall, Jamaica
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is June (10.3km/h).
The calmest month (with the lowest average wind speed) is November (6.9km/h).
Average humidity in September
Halse Hall, Jamaica
- Average humidity in September: 81%
The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Halse Hall, Jamaica
- Average rainfall in September: 132mm
The wettest month (with the highest rainfall) is October (147mm).
The driest month (with the least rainfall) is January (33mm).
Average rainfall days in September
Halse Hall, Jamaica
- Average rainfall days in September: 25.9 days
The month with the highest number of rainy days is October (27.5 days).
The month with the least rainy days is June (20.1 days).
Average daylight in September /
Average sunshine in September
Halse Hall, 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 1min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The months with the least sunshine are October and December (Average sunshine: 6h and 54min).
Average sunshine days in September
Halse Hall, Jamaica
- Average sunshine days in September: 2.8 days
The month with the most sunshine days is July (7.5 days).
The month with the least sunshine days is October (2.3 days).
Average UV index in September
Halse Hall, Jamaica
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February, March, April, September, October, November and December (UV index 6).
Average cloud cover in September
Halse Hall, Jamaica
- Average cloud cover in September: 29
The month with the most cloud cover is June (Cloud cover 36).
The months with the least cloud cover are March, July, August, September and December (Cloud cover 29).
Average visibility in September
Halse Hall, Jamaica
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and November (9km).
The months with the lowest visibility are January, October and December (8km).
