September weather forecastGrenada, MS
September
Weather in September
September in Grenada reflects the turning of the leaf towards autumn. A decrease in average high temperature is noticeable, as the heat of summer begins to retreat slowly. A lower cloud percentage of 27% clears the way for more blue skies, mirrored by the rippling waters of the local reservoirs. Despite the onset of shorter days, the weather stays predominantly mild and pleasant. September is thus a willful compromise between the fading summer and approaching fall.Temperature
The transition from August to September sees an average high-temperature of a still tropical 86°F (30°C), indicating a minor variance from the prior month. Grenada reports an average nighttime low-temperature of 66°F (18.9°C) in September.Heat index
The heat index in September is appraised at a sweltering 96.8°F (36°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in September is 72%.Rainfall
In Grenada, in September, it is raining for 14.7 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 170.7 rainfall days, and 40.39" (1026mm) of precipitation is accumulated.Snowfall
In Grenada, snow does not fall in April through October.Daylight
In Grenada, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:44 pm CDT.
Sunshine
In Grenada, the average sunshine in September is 9.6h.UV index
In Grenada, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grenada, MS
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in September
Grenada, MS
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Grenada, MS
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are February and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Grenada, MS
- Average humidity in September: 72%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Grenada, MS
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is February (4.25").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Grenada, MS
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in September
Grenada, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Grenada, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Grenada, MS
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Grenada, MS
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in September
Grenada, MS
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Grenada, MS
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 27).
Average visibility in September
Grenada, MS
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





