SeasonMapAdamstown (Pitcairn) weather in December
Pitcairn Islands
December in Adamstown: nice, soaked, with clean air — fine if you can take 14 rainy days.
#9 of 12 months in Adamstown · #439 of 1383 destinations to visit in December · comfort 80/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Adamstown in December
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Adamstown climate normals — December
| Daytime high | 24°C / 74°F | 😎 nice |
|---|---|---|
| Nighttime low | 22°C / 72°F | |
| Sea temperature | 24°C / 76°F | 🙂 pleasant |
| Rainfall | 161 mm / 6.3 in | ⛈ soaked |
| Rainy days | 14 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 19°C / 67°F | |
| Sunshine | 10.8 h/day | |
| Daylight | 13.7 h | |
| Wind | 26 km/h / 16 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Adamstown in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyCruise ship days, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Adamstown's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherAdamstown's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Adamstown in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Landing depends on the swell
1 Jan – 31 DecClosuresEverything and everyone comes ashore by longboat through the surf at Bounty Bay. When the swell is up the captain calls it off, and a scheduled visit becomes a slow lap of the island from the rail. Source ↗
- Rule
Quarterly ship from Mangareva
1 Jan – 31 DecBook earlyThe MV Silver Supporter is the only scheduled way in, running in quarterly blocks from Mangareva in French Polynesia and timed to the weekly Air Tahiti flight. Twelve berths, so dates are taken a long way ahead. Source ↗
- Season
Cruise ship days
1 Oct – 31 Mar · usuallyCruise seasonCrowdedA handful of ships a year anchor off for a few hours, mostly in the southern summer, and the whole island comes down to the square to sell carvings and honey. Between calls Adamstown sees almost nobody. Source ↗
Where is Adamstown?
Adamstown in December — FAQ
- Is December a good time to visit Adamstown?
- December in Adamstown: nice, soaked, with clean air — fine if you can take 14 rainy days. It ranks #9 of 12 months for Adamstown on SeasonMap's comfort score (80/100).
- What is the weather like in Adamstown in December?
- In December, Adamstown averages a daily high of 23.6°C and a low of 22.4°C, with about 160.5 mm of rain over roughly 14 rainy days.
- What is the air quality in Adamstown in December?
- Adamstown has a mean US Air Quality Index of about 38 in December.