Guatemala City weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Fair
Best time to visit: November – March
What is the weather like in Guatemala City in September?
In September, Guatemala City is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. Expect around 5 hours of sunshine a day. It rains often – on about 27 days, adding up to 329 mm. All in all, September is a so-so month for a holiday in Guatemala City.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 59 | 55 | 56 |
| Day | 24° | 23° | 23° |
| Night | 15° | 15° | 15° |
| Sun | 6 h | 5 h | 5 h |
| Rain days | 22 | 27 | 21 |
More details for September
- Daylight
- 12 h 14 min05:50 – 18:04
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 8 km/haverage daily peakAll months
- Cloud cover
- 87 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−6America/Guatemala
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %27 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Guatemala City in September: quick answers
Is Guatemala City hot in September?
Warm rather than hot: in September, daytime highs in Guatemala City average 23 °C and nights cool to about 15 °C.
Does it rain much in Guatemala City in September?
It rains often – on about 27 days, adding up to 329 mm.
Guatemala City month by month
The whole year in Guatemala CityAll destinations: GuatemalaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences