Asunción 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
Excellent
Best time to visit: April – September
What is the weather like in Asunción in September?
In September, Asunción is warm: daytime highs average 27 °C, and nights cool down to about 17 °C. The sun shines for around 7 hours a day. Rain falls on about 9 days, adding up to 110 mm. On about 10 days the thermometer climbs to 30 °C or more. All in all, September is an excellent month for a holiday in Asunción.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 86 | 81 | 64 |
| Day | 25° | 27° | 29° |
| Night | 15° | 17° | 20° |
| Sun | 6 h | 7 h | 7 h |
| Rain days | 6 | 9 | 12 |
More details for September
- Daylight
- 11 h 55 min06:49 – 18:43
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 7 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 43 %on averageAll months
- Hot days
- 10 days30 °C or moreAll months
- Time zone
- UTC−3America/Asuncion
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %58 %
- Few rainy daysweight 30 %66 %
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
- Light, breathable clothes
- Water bottle – drink plenty
- Rain jacket or umbrella
Asunción in September: quick answers
Is Asunción hot in September?
Warm rather than hot: in September, daytime highs in Asunción average 27 °C and nights cool to about 17 °C. On about 10 days the thermometer climbs to 30 °C or more.
Does it rain much in Asunción in September?
Rain falls on about 9 days, adding up to 110 mm.
Asunción month by month
The whole year in AsunciónAll destinations: ParaguayWhere 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