Penang weather in December
December in Penang: hot, soaked, with very humid — a great time to visit.
#8 of 12 months in Penang · #254 of 604 destinations to visit in December · comfort 73/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Penang climate normals — December
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 194 mm / 7.6 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 8.4 h/day | |
| Daylight | 11.8 h | |
| Wind | 8 km/h / 5 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Penang in December — FAQ
- Is December a good time to visit Penang?
- December in Penang: hot, soaked, with very humid — a great time to visit. It ranks #8 of 12 months for Penang on SeasonMap's comfort score (73/100).
- What is the weather like in Penang in December?
- In December, Penang averages a daily high of 27.6°C and a low of 24°C, with about 193.5 mm of rain over roughly 17.8 rainy days.
- What is the air quality in Penang in December?
- Penang has a mean US Air Quality Index of about 51 in December.