Guayaquil weather in September
Temperature, sea 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: June – November
What is the weather like in Guayaquil in September?
In September, Guayaquil is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 23.2 °C – pleasant for swimming. The sun is scarce, with only about 4 hours a day. It is the rainy season: rain falls on about 19 days, totalling 115 mm. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Guayaquil.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 51 | 49 | 48 |
| Day | 27° | 28° | 28° |
| Night | 21° | 21° | 21° |
| Sea | 23° | 23° | 24° |
| Sun | 4 h | 4 h | 4 h |
| Rain days | 18 | 19 | 18 |
More details for September
- Daylight
- 12 h 6 min06:12 – 18:18
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 11 km/haverage daily peakAll months
- Cloud cover
- 84 %on averageAll months
- Hot days
- 2 days30 °C or moreAll months
- Time zone
- UTC−5America/Guayaquil
How the score comes together
- Temperatureweight 50 %91 %
- Sunshineweight 20 %15 %
- 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
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Guayaquil in September: quick answers
Is Guayaquil hot in September?
Yes. In September, Guayaquil is hot: daytime highs average 28 °C and nights stay around 21 °C. On about 2 days the thermometer climbs to 30 °C or more.
Can you swim in Guayaquil in September?
Yes. In September the sea averages 23.2 °C – pleasant for swimming.
Does it rain much in Guayaquil in September?
It rains often – on about 19 days, adding up to 115 mm.
Guayaquil month by month
The whole year in GuayaquilAll destinations: EcuadorWhere to go in SeptemberSea temperature 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