Climate averages 1991–2020
Portoviejo weather
in September.
A hot, fairly dry month: the 6th warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Portoviejo: daytime highs average 28.9°C and nights cool to about 21.3°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 20 mm of rain on roughly 5 days, which makes September a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average September day.
The nearest other city in this atlas is La Libertad (140 km away). In September its highs average 23.9°C, 5.0°C cooler than Portoviejo, with 8.9 mm of rain.
Among the 9 cities listed in Ecuador, Portoviejo ranks 1st of 9 for the warmest September highs and 2nd of 9 for the driest September (rainfall, lowest first). The mean September high of those 9 cities is 23.4°C; Portoviejo is 5.6°C warmer than that mean.
From September to October, average highs rise by 0.1°C to 29.0°C, and monthly rainfall falls from 20 mm to 18 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Portoviejo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.7°C22.8°C | 22.8°C | 132 | 18.2 | 12.212 h |
| February | 28.5°C23.0°C | 23.0°C | 256 | 22.9 | 12.112 h |
| March | 29.0°C23.1°C | 23.1°C | 234 | 23.1 | 12.112 h |
| April | 29.0°C23.0°C | 23.0°C | 158 | 20.3 | 12.112 h |
| May | 28.6°C22.8°C | 22.8°C | 75 | 14.2 | 12.112 h |
| June | 28.0°C22.1°C | 22.1°C | 32 | 7.9 | 12.112 h |
| July | 28.0°C21.6°C | 21.6°C | 22 | 5.9 | 12.112 h |
| August | 28.6°C21.3°C | 21.3°C | 14 | 4.0 | 12.112 h |
| September, selected | 28.9°C21.3°C | 21.3°C | 20 | 5.1 | 12.112 h |
| October | 29.0°C21.4°C | 21.4°C | 18 | 4.5 | 12.112 h |
| November | 29.5°C21.5°C | 21.5°C | 22 | 4.3 | 12.212 h |
| December | 29.4°C22.3°C | 22.3°C | 61 | 10.1 | 12.212 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- La Libertad in SeptemberEcuador · 140 kmHigh 23.9°C · Low 20.0°C · 8.9 mm rain
- Eloy Alfaro in SeptemberEcuador · 141 kmHigh 27.6°C · Low 20.8°C · 117 mm rain
- Santo Domingo de los Colorados in SeptemberEcuador · 168 kmHigh 24.1°C · Low 19.0°C · 87 mm rain
- Esmeraldas in SeptemberEcuador · 241 kmHigh 27.6°C · Low 22.8°C · 67 mm rain
- Cuenca in SeptemberEcuador · 261 kmHigh 18.1°C · Low 9.8°C · 62 mm rain
- Tumbes in SeptemberPeru · 278 kmHigh 29.3°C · Low 20.6°C · 6.0 mm rain
- Ibarra in SeptemberEcuador · 302 kmHigh 21.9°C · Low 10.7°C · 75 mm rain
- Loja in SeptemberEcuador · 355 kmHigh 21.9°C · Low 13.9°C · 36 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Portoviejo) is explained once on the Portoviejo year overview and on the Sources, method and limits page.