Port Blair weather in December
December in Port Blair: warm, rainy, with very humid — an excellent time to visit.
#5 of 12 months in Port Blair · #287 of 897 destinations to visit in December · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Port Blair in December
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Port Blair climate normals — December
| Daytime high | 28°C / 82°F | 🌤 warm |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Rainfall | 91 mm / 3.6 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 11.5 h | |
| Wind | 25 km/h / 15 mph | |
| Air quality (US AQI) | 58 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Port Blair in December — FAQ
- Is December a good time to visit Port Blair?
- December in Port Blair: warm, rainy, with very humid — an excellent time to visit. It ranks #5 of 12 months for Port Blair on SeasonMap's comfort score (80/100).
- What is the weather like in Port Blair in December?
- In December, Port Blair averages a daily high of 27.8°C and a low of 26.2°C, with about 91.1 mm of rain over roughly 8.8 rainy days.
- What is the air quality in Port Blair in December?
- Port Blair has a mean US Air Quality Index of about 58 in December.