Click on a day for an hourly weather forecast
The temperatures in Guatemala City in September are comfortable with low of 15°C and and high up to 24°C.
With more than 22 rainy days, Guatemala City is an incredibly wet during September. Be sure to pack your umbrella and bring along your rubber boots to stay dry. It’s going to be raining cats and dogs this month!
Our weather forecast can give you a great sense of what weather to expect in Guatemala City in September 2025.
If you’re planning to visit Guatemala City in the near future, we highly recommend that you review the 14 day weather forecast for Guatemala City before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 24° / 12° | 2 | 29 | 0 | 19 mm | Perfect | Guatemala City in January |
| February | 26° / 13° | 2 | 27 | 0 | 27 mm | Perfect | Guatemala City in February |
| March | 27° / 14° | 3 | 28 | 0 | 39 mm | Perfect | Guatemala City in March |
| April | 28° / 16° | 11 | 19 | 0 | 193 mm | Good | Guatemala City in April |
| May | 26° / 17° | 21 | 10 | 0 | 594 mm | Good | Guatemala City in May |
| June | 24° / 16° | 24 | 6 | 0 | 681 mm | Good | Guatemala City in June |
| July | 25° / 15° | 20 | 11 | 0 | 387 mm | Good | Guatemala City in July |
| August | 25° / 15° | 23 | 8 | 0 | 543 mm | Good | Guatemala City in August |
| September | 24° / 15° | 26 | 4 | 0 | 659 mm | Good | Guatemala City in September |
| October | 23° / 14° | 20 | 11 | 0 | 448 mm | Good | Guatemala City in October |
| November | 23° / 13° | 6 | 24 | 0 | 85 mm | Perfect | Guatemala City in November |
| December | 24° / 13° | 1 | 30 | 0 | 20 mm | Perfect | Guatemala City in December |