Adamstown weather in December

In December, Adamstown sees average daytime highs of 24°C and overnight lows near 23°C, with 155 mm of rain across 12.7 wet days and about 13.5 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 24% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of December to 13 h 30 min by month's end. Set against the rest of the year, December is Adamstown's 10th-clearest and 9th-windiest month. For the whole year in context, see Adamstown's year-round climate.

Daytime high
24°
5th warmest
Overnight low
23°
8th coldest
Rainfall
155 mm
12.7 wet days
Daylight
13 h 36 min
5:50 AM – 7:23 PM
Cloud cover
68%
10th clearest
Wind
22 km/h
9th windiest
Solar energy
6.69 kWh/m²
Travel score
6.4
out of 10

Adamstown is capital and only settlement on the Pitcairn Islands.

Density
10/km²
people per km²
Founded
1790

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical December day in Adamstown reaches about 24°C in the afternoon and slips back to 23°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 25°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12423
22423
32423
42423
52423
62423
72423
82423
92423
102423
112423
122423
132423
142423
152423
162423
172423
182423
192423
202423
212423
222423
232423
242523
252523
262523
272524
282524
292524
302524
312524

Adamstown weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 24°11712.913.46.4
Feb26° / 24°10912.812.96.2
Mar26° / 24°10912.212.26.5
Apr25° / 24°13012.911.46.3
May24° / 22°1079.810.86.8
Jun23° / 21°12110.310.56.5
Jul22° / 20°10210.110.66.5
Aug21° / 20°11310.211.16.5
Sep21° / 20°1069.711.86.4
Oct22° / 21°1341112.66.3
Nov23° / 22°1089.713.26.6
Dec24° / 23°15512.713.56.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33565
43565
53565
63565
73664
83664
93664
103763
113763
123862
133862
143961
153961
163961
174060
184060
194060
204159
214159
224060
234159
244159
254258
264357
274357
284456
294357
304357
314456

Chance of precipitation in December

Any precipitation

Adamstown gets around 155 mm of rain over 12.7 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
336
436
537
637
738
839
940
1040
1141
1242
1342
1442
1543
1643
1743
1843
1944
2044
2144
2244
2344
2443
2543
2643
2742
2842
2942
3042
3142

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the muggy band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 84% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
16206212
26196213
36196114
46186115
56176116
66166117
76166018
86156019
96146020
106136021
116135922
126125923
136115924
146115825
156105826
165105728
175105629
184105630
19495631
20495433
21395434
22395335
23285535
24285436
25275437
26175438
27175438
28165439
29165439
30165340
31065341

Wind in December

Winds average 22 km/h in December.

Across December, daily wind ranges from about 21 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
622breezy
722breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 24 min at the start of December to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:47 AM to 5:57 AM, and sunset from 7:14 PM to 7:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:477:14
213.55:477:14
313.55:477:15
413.55:477:16
513.55:477:16
613.55:477:17
713.55:487:18
813.55:487:18
913.55:487:19
1013.55:487:20
1113.55:487:20
1213.55:497:21
1313.55:497:21
1413.55:497:22
1513.55:507:23
1613.65:507:23
1713.65:507:24
1813.65:517:24
1913.65:517:25
2013.65:527:25
2113.65:527:26
2213.65:537:26
2313.65:537:27
2413.65:547:27
2513.65:547:28
2613.65:557:28
2713.65:557:28
2813.65:567:29
2913.55:567:29
3013.55:577:29
3113.55:577:30

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.69 kWh/m².

For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 6.84 kWh/m² in January across the year — December's 6.69 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.7Intense
236.7Intense
246.7Intense
256.8Intense
266.8Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
317.0Intense
Planning a trip in December

Is December a good time to visit Adamstown?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4
Sightseeing
7th-best month of the year
5.5
Beach & pool
6th-best month of the year

December is a reasonable time to visit Adamstown for sightseeing.

What to pack for Adamstown in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Adamstown sees daytime highs around 24°C and nights near 23°C. Pack sun protection. Worth having: light clothes, rain gear and a windbreaker. About 13 days see rain.

sun protectionlight clothesrain geara windbreaker

Sea temperature near Adamstown in December

The nearest coast averages about 25°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 27°C and coldest in August near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar27Warm
Apr26Warm
May25Warm
Jun24Refreshing
Jul23Refreshing
Aug22Refreshing
Sep22Refreshing
Oct23Refreshing
Nov24Refreshing
Dec25Warm

UV index in Adamstown in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Adamstown peaks around February 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 10UV 14Jun 20UV 5
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar13Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5High
Aug7High
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec12Extreme
Location & terrain

Where is Adamstown?

Adamstown sits at 25.1°S, 130.1°W, 67 m above sea level, in Pitcairn. The nearest listed city is Punaauia, 2,179 km away.

Topography around Adamstown

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Adamstown.

Within 3 km, the terrain around Adamstown has significant variations in elevation — a maximum elevation change of 318 m around an average of 17 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 318 m; within 80 km, significant variations in elevation — a maximum elevation change of 302 m.

The land around Adamstown is covered by water (88%) within 3 km, water (100%) within 16 km, and water (100%) within 80 km.

3 km
318 m
16 km
318 m
80 km
302 m
treesgrasslandwater
December weather nearby: Punaauia 2,179 km · Papeete 2,181 km · Faaa 2,183 km · Moorea 2,205 km · Bora Bora 2,438 km · Avarua 3,058 km · Alofi 4,143 km · Pago Pago 4,398 km

Pitcairn travel facts

Power plugs
Type I
230 V · 50 Hz
Religion
Seventh Day Adventist 100%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Adamstown (-25.066°, -130.1015°, elevation 67 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).