September weather forecastPeckham, Jamaica
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Peckham, Jamaica, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 21.8°C (71.2°F).Temperature
As Peckham steps into September, the average high-temperature is measured at a warm 29.3°C (84.7°F), displaying minor differences from August's 30°C (86°F). In the month of September, an average of 21.8°C (71.2°F) marks the low-temperature.Heat index
During September, the heat index is estimated at a sweltering 37°C (98.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Peckham, the average relative humidity in September is 85%.Rainfall
In September, the rain falls for 27.3 days. Throughout September, 190mm (7.48") of precipitation is accumulated. In Peckham, during the entire year, the rain falls for 297.9 days and collects up to 1472mm (57.95") of precipitation.Daylight
The average length of the day in September is 12h and 14min.On the first day of September, sunrise is at 05:55 and sunset at 18:23. 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 9.8h.UV index
In Peckham, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 6 during September translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Peckham, Jamaica
- Average high temperature in September: 29.3°C
The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (27°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is August (21.9°C).
The coldest month (with the lowest average low temperature) is February (18.6°C).
Average pressure in September
Peckham, Jamaica
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is October (1011.5mbar).
Average wind speed in September
Peckham, Jamaica
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest month (with the lowest average wind speed) is November (6.2km/h).
Average humidity in September
Peckham, Jamaica
- Average humidity in September: 85%
The month with the highest relative humidity is October (87%).
The months with the lowest relative humidity are March and July (81%).
Average rainfall in September
Peckham, Jamaica
- Average rainfall in September: 190mm
The wettest month (with the highest rainfall) is October (228mm).
The driest month (with the least rainfall) is January (56mm).
Average rainfall days in September
Peckham, Jamaica
- Average rainfall days in September: 27.3 days
The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is June (21.1 days).
Average daylight in September /
Average sunshine in September
Peckham, 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: 9h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in September
Peckham, Jamaica
- Average sunshine days in September: 1.9 days
The month with the most sunshine days is June (7.6 days).
The months with the least sunshine days are September and November (1.9 days).
Average UV index in September
Peckham, Jamaica
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in September
Peckham, Jamaica
- Average cloud cover in September: 40
The months with the most cloud cover are May and November (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Peckham, Jamaica
- Average visibility in September: 7km
The months with the highest visibility are March, June, July and August (8km).
The months with the lowest visibility are November and December (6km).





