Monthly climate guide
Asunción weather in September
September in Asunción is typically hot, with average daytime highs around 29°C (84°F) and night-time lows near 15°C (60°F). The month usually brings about 61 mm of rain (some rain) and is a mix of sun and cloud. Daytime highs are 4°C warmer than August and 2°C cooler than October.
What stands out in September
- Afternoons and nights feel like different seasons, roughly 13°C apart.
- Rain is well below Asunción's usual level (around 52% less).
- Just 290 km apart, but Asunción runs about 4°C warmer than Encarnación this month.
- Seasonally, September counts as early spring in Asunción — the seasons are reversed south of the equator.
Avg high
29°C
84°F
Avg low
15°C
60°F
Rainfall
61 mm
some rain
Humidity
68%
relative
Sky
51%
cloud · a mix of sun and cloud
Asunción weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 34°C / 93°F | 23°C / 74°F | 137 mm | 69% | 60% |
| February | 33°C / 92°F | 23°C / 73°F | 149 mm | 69% | 56% |
| March | 32°C / 89°F | 20°C / 68°F | 134 mm | 71% | 51% |
| April | 29°C / 84°F | 18°C / 65°F | 166 mm | 78% | 45% |
| May | 25°C / 76°F | 15°C / 58°F | 154 mm | 83% | 55% |
| June | 22°C / 72°F | 12°C / 54°F | 76 mm | 84% | 58% |
| July | 22°C / 72°F | 11°C / 52°F | 61 mm | 81% | 54% |
| August | 25°C / 78°F | 13°C / 55°F | 36 mm | 75% | 45% |
| September | 29°C / 84°F | 15°C / 60°F | 61 mm | 68% | 51% |
| October | 31°C / 88°F | 19°C / 66°F | 157 mm | 69% | 57% |
| November | 32°C / 89°F | 20°C / 67°F | 200 mm | 71% | 49% |
| December | 33°C / 91°F | 22°C / 71°F | 181 mm | 71% | 57% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- A small travel umbrella, just in case
Is September a good time to visit Asunción?
Compare the months in the chart above to find your ideal window.
Best time to visit Asunción →Other Paraguay cities in September
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Asunción weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/paraguay/asuncion/september
<a href="https://weathercompare.eu/weather/paraguay/asuncion/september">Asunción weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/paraguay/asuncion" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Asunción weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/paraguay/asuncion/september">Asunción weather in September</a> – WeatherCompare</p>
Asunción in September: quick answers
Is September a good time to visit Asunción?
September is a reasonable time for Asunción: highs around 29°C and about 61 mm of rain, though not one of the three best months.
How warm is Asunción in September?
Average highs are about 29°C (84°F) and average lows about 15°C (60°F), based on 10 years of daily data.
Does it rain a lot in Asunción in September?
Asunción typically gets around 61 mm of rain in September — some rain.
Figures are long-term averages for the area around Asunción (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.