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
Weather in September
Temperature
September observes an average high-temperature of a still hot 31.4°C (88.5°F), marking an insignificant difference from August's 31.7°C (89.1°F). Throughout September, Richmond records an average temperature of 23.3°C (73.9°F) at night.Heat index
For most parts of September, the heat index is computed to be an extremely hot 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. 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 'real feel' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In Richmond, the average relative humidity in September is 79%.Rainfall
In Richmond, during September, the rain falls for 23.1 days and regularly aggregates up to 106mm (4.17") of precipitation. In Richmond, during the entire year, the rain falls for 265.1 days and collects up to 806mm (31.73") of precipitation.Daylight
The average length of the day in September is 12h and 14min.On the first day of September, sunrise is at 05:53 and sunset at 18:21. On the last day of the month, sunrise is at 05:57 and sunset at 17:56 EST.
Sunshine
The average sunshine in September is 10.9h.UV index
January through April, September, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Richmond, Jamaica. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 during September translates into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Richmond in September?
What is the average humidity in September in Richmond?
How many days does it rain in September in Richmond?
What is the average length of the day in September in Richmond?
When is the sunrise / sunset in September in Richmond?
How many hours of sunshine does Richmond have in September?
What is the month with the lowest UV index in Richmond?
How high is the UV index in September in Richmond?
Average temperature in September
Richmond, Jamaica
- Average high temperature in September: 31.4°C
The warmest months (with the highest average high temperature) are July and August (31.7°C).
The month with the lowest average high temperature is January (28.4°C).
- Average low temperature in September: 23.3°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in September
Richmond, 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).
Average wind speed in September
Richmond, Jamaica
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is June (9km/h).
The calmest month (with the lowest average wind speed) is November (6.6km/h).
Average humidity in September
Richmond, Jamaica
- Average humidity in September: 79%
The months with the highest relative humidity are October, November and December (81%).
The months with the lowest relative humidity are March, July and August (77%).
Average rainfall in September
Richmond, Jamaica
- Average rainfall in September: 106mm
The wettest month (with the highest rainfall) is October (123mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Richmond, Jamaica
- Average rainfall days in September: 23.1 days
The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is February (19.2 days).
Average daylight in September /
Average sunshine in September
Richmond, 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: 10h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Richmond, Jamaica
- Average sunshine days in September: 1.7 days
The month with the most sunshine days is January (6 days).
The month with the least sunshine days is October (1.5 days).
Average UV index in September
Richmond, Jamaica
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August and October (UV index 7).
The months with the lowest UV index are January, February, March, April, September, November and December (UV index 6).
Average cloud cover in September
Richmond, Jamaica
- Average cloud cover in September: 29
The month with the most cloud cover is June (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Richmond, Jamaica
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Richmond, Jamaica
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