Click on a day for an hourly weather forecast
The weather in Georgetown in September is hot. The average temperatures are between 22°C and 31°C.
You can expect about 3 to 8 days of rain in Georgetown during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Georgetown in September 2025.
If you’re planning to visit Georgetown in the near future, we highly recommend that you review the 14 day weather forecast for Georgetown before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 15° / 6° | 3 | 27 | 1 | 59 mm | Good | Georgetown in January |
| February | 16° / 7° | 3 | 24 | 1 | 48 mm | Good | Georgetown in February |
| March | 21° / 11° | 5 | 26 | 0 | 77 mm | Good | Georgetown in March |
| April | 25° / 14° | 5 | 25 | 0 | 83 mm | Perfect | Georgetown in April |
| May | 29° / 19° | 8 | 23 | 0 | 165 mm | Ok | Georgetown in May |
| June | 33° / 22° | 6 | 25 | 0 | 97 mm | Good | Georgetown in June |
| July | 35° / 24° | 4 | 28 | 0 | 82 mm | Ok | Georgetown in July |
| August | 35° / 24° | 3 | 28 | 0 | 89 mm | Ok | Georgetown in August |
| September | 31° / 22° | 6 | 24 | 0 | 145 mm | Good | Georgetown in September |
| October | 26° / 16° | 4 | 27 | 0 | 120 mm | Perfect | Georgetown in October |
| November | 20° / 11° | 4 | 26 | 0 | 63 mm | Good | Georgetown in November |
| December | 16° / 8° | 4 | 27 | 0 | 70 mm | Good | Georgetown in December |