Guayaquil Weather in September
What's the weather like in Guayaquil (Guayas) in September 2025?
The climate in Guayaquil during September can be summarized as hot, humid and very dry.
September is in the spring in Guayaquil and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 31.6°C 88.9°F |
|---|---|
| Nightly temperature | 18.6°C 65.5°F |
| Average temperature | 25.1°C 77.2°F |
| Daily sunshine | 2.9 hrs |
| Avg rainfall | 1 mm 0 ins |
| Rainy days | 2 days |
| Sea temperature | 21.7°C 71.1°F |
| Humidity | 76% |
| Windspeed | 12.2kph 8 mph |
On average September is the 3rd driest month of the year in Guayaquil with around 1mm 0 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 2.9 hours of sunshine per day.
September temperatures in Guayaquil
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Guayaquil in September 2025.
Other monthly averages
Best places to visit in September
Guayaquil weather stats
| Hottest month: | March | 32.8°C 91°F |
|---|---|---|
| Driest month: | August | 0mm 0ins |
| Sunniest month: | April | 4.8hrs |
| Coldest month: | July | 30.5°C 86.9°F |
| Wettest month: | March | 250mm 9.8ins |
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