September weather forecastFlamstead, Jamaica
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Flamstead, Jamaica, with an average temperature varying between 26.7°C (80.1°F) and 29.5°C (85.1°F).Temperature
Flamstead experiences an average high-temperature of a still moderately hot 29.5°C (85.1°F) with the onset of September, subtly varied from August's 29.7°C (85.5°F). Flamstead observes a slightly reduced average nighttime temperature of 26.7°C (80.1°F) during September.Heat index
The average heat index in September is computed to be a torrid 35°C (95°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 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.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In Flamstead, the average relative humidity in September is 76%.Rainfall
In Flamstead, in September, it is raining for 18.4 days, with typically 88mm (3.46") of accumulated precipitation. In Flamstead, during the entire year, the rain falls for 177.2 days and collects up to 687mm (27.05") of precipitation.Daylight
In Flamstead, the average length of the day in September is 12h and 14min.On the first day of September in Flamstead, sunrise is at 05:56 and sunset at 18:25. On the last day of the month, sunrise is at 06:01 and sunset at 18:00 EST.
Sunshine
The average sunshine in September is 10.3h.UV index
January, March through December, with an average maximum UV index of 7, are months with the highest UV index in Flamstead. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 during September translates into the following guidance:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Flamstead, Jamaica
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in September: 26.7°C
The months with the highest average low temperature are July and August (26.8°C).
The coldest month (with the lowest average low temperature) is February (23.8°C).
Average pressure in September
Flamstead, Jamaica
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is October (1011.4mbar).
Average wind speed in September
Flamstead, Jamaica
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is December (20km/h).
The calmest month (with the lowest average wind speed) is September (13km/h).
Average humidity in September
Flamstead, Jamaica
- Average humidity in September: 76%
The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is March (75%).
Average rainfall in September
Flamstead, Jamaica
- Average rainfall in September: 88mm
The wettest month (with the highest rainfall) is May (90mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days in September
Flamstead, Jamaica
- Average rainfall days in September: 18.4 days
The month with the highest number of rainy days is September (18.4 days).
The month with the least rainy days is February (10.6 days).
Average daylight in September /
Average sunshine in September
Flamstead, Jamaica
- Average daylight in September: 12h and 12min
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: 10h and 18min
The months with the most sunshine are July and August (Average sunshine: 11h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 36min).
Average sunshine days in September
Flamstead, Jamaica
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is December (18 days).
The month with the least sunshine days is September (9.8 days).
Average UV index in September
Flamstead, Jamaica
- Average UV index in September: 7
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is February (UV index 6).
Average cloud cover in September
Flamstead, Jamaica
- Average cloud cover in September: 22
The months with the most cloud cover are January, May and November (Cloud cover 28).
The month with the least cloud cover is July (Cloud cover 21).
Average visibility in September
Flamstead, 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).
