Adamstown in Summer
In summer (December, January and February), Adamstown sees average daytime highs around 25°C and overnight lows near 24°C, with 381 mm of rain over about 38 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 24°C in early December to 26°C by late February. The sky is clear or mostly clear about 34% of the time across summer, and the air most often feels oppressive.
Summer is Adamstown's weakest season of the year to visit on our travel score. Adamstown has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Adamstown's year-round climate.
- Avg daytime high
- 25°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 381 mm
- 38 wet days
- Avg wind
- 21 km/h
- Travel score
- 6.3
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Adamstown in Summer
Over the season highs climb from about 24°C in early December to 26°C by late February.
A typical summer day in Adamstown reaches about 25°C and drops to 24°C overnight. The warmest of the three months is February, the coolest December.
Adamstown weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 25° / 24° | 117 | 12.9 | 13.4 | 6.4 |
| Feb | 26° / 24° | 109 | 12.8 | 12.9 | 6.2 |
| Mar | 26° / 24° | 109 | 12.2 | 12.2 | 6.5 |
| Apr | 25° / 24° | 130 | 12.9 | 11.4 | 6.3 |
| May | 24° / 22° | 107 | 9.8 | 10.8 | 6.8 |
| Jun | 23° / 21° | 121 | 10.3 | 10.5 | 6.5 |
| Jul | 22° / 20° | 102 | 10.1 | 10.6 | 6.5 |
| Aug | 21° / 20° | 113 | 10.2 | 11.1 | 6.5 |
| Sep | 21° / 20° | 106 | 9.7 | 11.8 | 6.4 |
| Oct | 22° / 21° | 134 | 11 | 12.6 | 6.3 |
| Nov | 23° / 22° | 108 | 9.7 | 13.2 | 6.6 |
| Dec | 24° / 23° | 155 | 12.7 | 13.5 | 6.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 34% of the time across summer.
Chance of precipitation in Summer
Adamstown gets around 381 mm of rain over 38 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 21 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 24 min in early December to 12 h 36 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.7 kWh/m².
Is summer a good time to visit Adamstown?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Adamstown for sightseeing.
What to pack for Adamstown in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Adamstown sees daytime highs around 25°C and nights near 24°C. Pack rain gear and sun protection. Worth having: light clothes and a windbreaker. About 38 days see rain.
Sea temperature near Adamstown in Summer
The nearest coast averages about 26°C across summer — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 27 | 27 | 26 | 25 | 24 | 23 | 22 | 22 | 23 | 24 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 26 | Warm |
| May | 25 | Warm |
| Jun | 24 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 23 | Refreshing |
| Nov | 24 | Refreshing |
| Dec | 25 | Warm |
UV index in Adamstown in Summer
Clear-sky midday UV across summer averages around 14 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 15 | 13 | 8 | 6 | 5 | 5 | 7 | 9 | 12 | 14 | 12 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | High | High | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 8 | Very high |
| May | 6 | High |
| Jun | 5 | Moderate |
| Jul | 5 | High |
| Aug | 7 | High |
| Sep | 9 | Very high |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 12 | Extreme |
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.
Pitcairn travel facts
- Power plugs
- Type I
- 230 V · 50 Hz
- Religion
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.