Willemstad weather in December
December in Willemstad: warm, a little rain, with clean air — fine if you can take 19 rainy days.
#10 of 12 months in Willemstad · #228 of 897 destinations to visit in December · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Willemstad in December
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Willemstad climate normals — December
| Daytime high | 28°C / 82°F | 🌤 warm |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Rainfall | 57 mm / 2.3 in | 🌦 some rain |
| Rainy days | 19 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 10.7 h/day | |
| Daylight | 11.4 h | |
| Wind | 32 km/h / 20 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Willemstad in December — FAQ
- Is December a good time to visit Willemstad?
- December in Willemstad: warm, a little rain, with clean air — fine if you can take 19 rainy days. It ranks #10 of 12 months for Willemstad on SeasonMap's comfort score (83/100).
- What is the weather like in Willemstad in December?
- In December, Willemstad averages a daily high of 27.6°C and a low of 25.8°C, with about 57.2 mm of rain over roughly 18.6 rainy days.
- What is the air quality in Willemstad in December?
- Willemstad has a mean US Air Quality Index of about 39 in December.