Georgetown weather in December
December in Georgetown: warm, soaked, with clean air — a gamble, with 28 rainy days.
#10 of 12 months in Georgetown · #659 of 897 destinations to visit in December · comfort 58/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Georgetown in December
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Georgetown climate normals — December
| Daytime high | 27°C / 81°F | 🌤 warm |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Rainfall | 310 mm / 12.2 in | ⛈ soaked |
| Rainy days | 28 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 9 h/day | |
| Daylight | 11.7 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Georgetown in December — FAQ
- Is December a good time to visit Georgetown?
- December in Georgetown: warm, soaked, with clean air — a gamble, with 28 rainy days. It ranks #10 of 12 months for Georgetown on SeasonMap's comfort score (58/100).
- What is the weather like in Georgetown in December?
- In December, Georgetown averages a daily high of 27.4°C and a low of 24.7°C, with about 309.7 mm of rain over roughly 28 rainy days.
- What is the air quality in Georgetown in December?
- Georgetown has a mean US Air Quality Index of about 48 in December.