Asunción weather in December
December in Asunción: sweltering, rainy, with clean air — a good time to visit.
#11 of 12 months in Asunción · #303 of 604 destinations to visit in December · comfort 69/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Asunción climate normals — December
| Daytime high | 33°C / 91°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 23°C / 73°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 105 mm / 4.1 in | 🌧 rainy |
| Rainy days | 8 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 21°C / 69°F | |
| Sunshine | 11.8 h/day | |
| Daylight | 13.7 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Asunción in December — FAQ
- Is December a good time to visit Asunción?
- December in Asunción: sweltering, rainy, with clean air — a good time to visit. It ranks #11 of 12 months for Asunción on SeasonMap's comfort score (69/100).
- What is the weather like in Asunción in December?
- In December, Asunción averages a daily high of 32.5°C and a low of 22.8°C, with about 105.2 mm of rain over roughly 8.4 rainy days.
- What is the air quality in Asunción in December?
- Asunción has a mean US Air Quality Index of about 37 in December.