Don't be fooled by the warm temperatures, Grenada can still experience some pretty unpleasant weather during the month of September. Daily temperatures may range from 80 to 86 degrees Fahrenheit, but the monthly average of 18 days of rain is a reminder that there remains a distinct possibility of severe weather resulting from tropical storms systems.
During the early morning hours of an average September day in Grenada, you can expect the temperature will be in the vicinity of 81.8 degrees.
In September, temperatures typically rise to around 85.2 degrees by early afternoon.
The temperature in Grenada will typically decline by early evening, to approximately 80.0 degrees.
Overall, temperatures in Grenada during September average around 83.1 degrees.
| Early Morning | Late Morning | Early Afternoon | Late Afternoon | Early Evening | Overall |
| 81.8° F |
85.3° F |
85.2° F |
82.6° F |
80.0° F |
83.1° F |
|
Rain
During September, rain is most likely to occur around 2:00 PM, and least likely to occur around 11:00 PM.
As shown below, if a thunderstorm occurs in September, it is most likely to occur around 2:00 PM.
| Percent Frequencies of Hourly Observations | | Hour | Rain
and/or
Drizzle | Thunder-
storms |
| 2:00 AM |
6.3 % |
0.65 % |
| 5:00 AM |
8.25 % |
1 % |
| 8:00 AM |
21.55 % |
1.75 % |
| 11:00 AM |
24.8 % |
4.5 % |
| 2:00 PM |
31.65 % |
5.75 % |
| 5:00 PM |
20.8 % |
2.6 % |
| 8:00 PM |
12.5 % |
2.05 % |
| 11:00 PM |
4.35 % |
1 % |
| ALL |
20.15 % |
2.45 % |
|
