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Weather in Asunción for September 2026

Your guide to Asunción weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Lluvia, granizo y tormentas electricas tormenta eléctrica - See hour by hour.

    • Temperatures

  • Until now, September 2026 in Asunción is cooler than usual, with temperatures averaging 25.1 °C, this is 4.7 °C below the typical seasonal average.

  • The forecast for the next days in Asunción predicts a temperature of 31.3 °C, which is cooler than the historical average.

  • In general, the average temperature in Asunción at the beginning of September is 28.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 35.7 °C by the end of September.

    • Rain 🌧️

  • Asunción experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 74.4 mm.

Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
33°/18°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
53 %
Avg humidity

Asunción Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
28°
2
Thundery outbreaks possible
32°
3
Sunny
37°
4
Moderate or heavy rain shower
25°
5
Overcast
21°
6
Sunny
26°
7
Sunny
30°
8
Light rain shower
30°
9
Light rain shower
31°
10
Thundery outbreaks possible
35°
11
Sunny
35°
12
Overcast
30°
13
Overcast
25°
14
Partly cloudy
25°
15
Sunny
29°
16
Sunny
32°
17
Sunny
36°
18
Sunny
33°
19
Weather Alert Light rain shower
26°
20
Sunny
38°
21
Sunny
38°
22
Overcast
22°
23
Sunny
31°
24
Overcast
36°
25
Sunny
42°
26
Sunny
37°
27
Sunny
43°
28
Sunny
42°
29
Light rain shower
28°
30
Patchy rain possible
22°

Temperatures trend during September in Asunción

See the weather trend as well as the moving average line

September weather in Asunción day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 28° /16° 4.4 mm 7
2 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 32° /15° 5 mm 8
3 Sept. Sunny
Sunny
 37° /18° 2.1 mm 9
4 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 25° /15° 5.1 mm 6
5 Sept. Overcast
Overcast
 21° /13° 0 mm 5
6 Sept. Sunny
Sunny
 26° /11° 0 mm 8
7 Sept. Sunny
Sunny
 30° /14° 9.2 mm 8
8 Sept. Light rain shower
Light rain shower
 30° /16° 9.9 mm 7
9 Sept. Light rain shower
Light rain shower
 31° /18° 2.1 mm 7
10 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 35° /17° 1.3 mm 8
11 Sept. Sunny
Sunny
 35° /20° 0.5 mm 8
12 Sept. Overcast
Overcast
 30° /16° 0.3 mm 6
13 Sept. Overcast
Overcast
 25° /14° 0.5 mm 6
14 Sept. Partly cloudy
Partly cloudy
 25° /15° 1 mm 7
15 Sept. Sunny
Sunny
 29° /14° 0.2 mm 8
16 Sept. Sunny
Sunny
 32° /14° 0.2 mm 9
17 Sept. Sunny
Sunny
 36° /18° 0 mm 9
18 Sept. Sunny
Sunny
 33° /20° 1.8 mm 7
19 Sept. Light rain shower
Light rain shower
 26° /18° 52.6 mm 3.7
20 Sept. Sunny
Sunny
 38° /20° 1.1 mm 8.9
21 Sept. Sunny
Sunny
 38° /16° 2.8 mm 8.3
22 Sept. Overcast
Overcast
 22° /14° 1.9 mm 7
23 Sept. Sunny
Sunny
 31° /12° 0 mm 9
24 Sept. Overcast
Overcast
 36° /21° 0 mm 9
25 Sept. Sunny
Sunny
 42° /25° 0 mm 11
26 Sept. Sunny
Sunny
 37° /26° 0 mm 10
27 Sept. Sunny
Sunny
 43° /24° 0 mm 11
28 Sept. Sunny
Sunny
 42° /27° 0 mm 11
29 Sept. Light rain shower
Light rain shower
 28° /22° 3.6 mm 7
30 Sept. Patchy rain possible
Patchy rain possible
 22° /16° 15.9 mm 6
Next
Important Notice
Our weather forecast for Asunción in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Asunción forecast closer to your planned date for the most up-to-date weather information.
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Asunción in September - FAQ

What are the expected maximum and minimum temperatures in Asunción during September?
Expect warm days with temperatures around 33°, cooling to mild conditions of 18° after sunset. Perfect for those who enjoy warm weather.

How much rainfall should be expected in Asunción during September?
Moderate rainfall is anticipated in Asunción during September, with a total of 74.4 mm spread over approximately 8 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Asunción during September?
The average wind speed in Asunción during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Asunción

Explore the daily rainfall trends and prepare for Asuncións September weather 💧
Typically, Asunción has 8 rainy days in September with a total of 74.4 mm of rainfall.

UV exposure in Asunción during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Asunción?

Get accurate weather forecasts for Asunción, located at latitude -25.286 and longitude -57.647. Stay updated with localized weather information tailored for Asunción.

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