December is close to Pago Pago's year-round average, with average highs near 28.2°C and lows around 27.4°C (mean 27.8°C). It is a relatively wet time of year, averaging 242 mm of rainfall and 81% relative humidity across the period.
December is close to Pago Pago's year-round average. Across 45 years of records, the warmest December in Pago Pago was 2016 — when the month averaged 28.6°C — while the coldest was 1988 at 26.7°C. Typical December days reach 28.2°C with nights near 27.4°C. The long-term trend is warming, about 0.2°C per decade.
December is a relatively wet time of year in Pago Pago, averaging 242 mm of rainfall. The wettest December on record was 1984 with 468 mm, while the driest was 1982 at 21 mm.
Relative humidity in Pago Pago during December averages 81%. The most humid December was 1994 at 84%, and the least humid was 1995 at 77%.
December receives about 6 kWh/m²/day of solar energy in Pago Pago. The sunniest December was 1995 at 6.9 kWh/m²/day, and the cloudiest was 1984 at 5.1.
Average wind speed in Pago Pago during December is 4.4 m/s. The windiest Decembers were 1991 and 1997 at 5.9 m/s, while the calmest was 2016 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.2°C | 27.7°C | 28.0°C | 28.0°C | 28.1°C | +0.9°C |
| Avg High | 27.6°C | 28.0°C | 28.4°C | 28.4°C | 28.5°C | +0.9°C |
| Avg Low | 26.8°C | 27.3°C | 27.7°C | 27.6°C | 27.7°C | +0.9°C |
| Avg Rain | 295 mm | 225 mm | 215 mm | 260 mm | 206 mm | -90 mm |
December temperatures in Pago Pago have risen by about 1°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 24.9°C (1991) to a record high of 29.9°C (2005).
Rainfall in December is a relatively wet time of year, averaging 242 mm, with a wettest year of 468 mm.
A quieter season to visit Pago Pago
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Pago Pago. That said, December — with days averaging 28.2°C and nights around 27.4°C (mean 27.8°C) and higher rainfall (242 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 28.7°C | 28.3°C | 28.0°C | 29.4°C | 27.0°C | 162 mm | 80% | 3.7 m/s | — |
| 2024 | 28.9°C | 28.5°C | 28.0°C | 29.8°C | 26.6°C | 196 mm | 81% | 4 m/s | 6.6 |
| 2023 | 28.7°C | 28.3°C | 28.0°C | 29.2°C | 27.2°C | 307 mm | 84% | 5.1 m/s | 5.8 |
| 2022 | 28.3°C | 27.9°C | 27.6°C | 28.8°C | 26.8°C | 169 mm | 80% | 4.9 m/s | 6.7 |
| 2021 | 28.2°C | 27.8°C | 27.4°C | 28.9°C | 25.7°C | 162 mm | 79% | 4.6 m/s | 6.6 |
| 2020 | 28.1°C | 27.7°C | 27.4°C | 29.0°C | 26.2°C | 240 mm | 81% | 4.7 m/s | 5.5 |
| 2019 | 28.6°C | 28.1°C | 27.7°C | 29.7°C | 26.2°C | 267 mm | 82% | 4.4 m/s | 5.8 |
| 2018 | 28.8°C | 28.4°C | 27.9°C | 29.5°C | 26.2°C | 269 mm | 81% | 4.7 m/s | 5.7 |
| 2017 | 28.5°C | 28.1°C | 27.7°C | 29.1°C | 26.4°C | 278 mm | 79% | 3.6 m/s | 6 |
| 2016 🔥 | 29.0°C | 28.6°C | 28.2°C | 29.5°C | 27.1°C | 313 mm | 78% | 3 m/s | 5.6 |
| 2015 | 28.1°C | 27.7°C | 27.4°C | 29.3°C | 26.0°C | 211 mm | 82% | 4.9 m/s | 6.1 |
| 2014 | 28.3°C | 27.9°C | 27.5°C | 29.2°C | 25.4°C | 282 mm | 83% | 4.3 m/s | 5.6 |
| 2013 | 28.3°C | 27.9°C | 27.5°C | 29.2°C | 26.6°C | 229 mm | 80% | 3.5 m/s | 6.3 |
| 2012 | 28.5°C | 28.1°C | 27.8°C | 29.2°C | 27.0°C | 266 mm | 81% | 4.4 m/s | 5.8 |
| 2011 | 28.0°C | 27.6°C | 27.3°C | 28.7°C | 25.9°C | 185 mm | 80% | 4.8 m/s | 6.2 |
| 2010 | 27.9°C | 27.5°C | 27.2°C | 28.9°C | 26.3°C | 296 mm | 81% | 4.5 m/s | 5.9 |
| 2009 | 28.2°C | 27.8°C | 27.4°C | 28.9°C | 26.3°C | 176 mm | 80% | 5.2 m/s | 6 |
| 2008 | 28.3°C | 27.9°C | 27.5°C | 29.0°C | 26.4°C | 227 mm | 79% | 4.4 m/s | 6.3 |
| 2007 | 28.2°C | 27.7°C | 27.3°C | 28.9°C | 26.1°C | 235 mm | 80% | 4.7 m/s | 5.9 |
| 2006 | 28.6°C | 28.2°C | 27.9°C | 29.8°C | 26.8°C | 224 mm | 82% | 3.6 m/s | 5.7 |
| 2005 | 28.7°C | 28.3°C | 27.9°C | 29.9°C | 27.0°C | 308 mm | 80% | 3.3 m/s | 5.7 |
| 2004 | 28.8°C | 28.5°C | 28.2°C | 29.4°C | 27.1°C | 111 mm | 79% | 5.4 m/s | 6.6 |
| 2003 | 28.5°C | 28.1°C | 27.7°C | 29.7°C | 26.5°C | 166 mm | 81% | 4.2 m/s | 6.4 |
| 2002 | 28.8°C | 28.3°C | 27.9°C | 29.6°C | 26.5°C | 224 mm | 80% | 4.6 m/s | 5.9 |
| 2001 | 28.0°C | 27.6°C | 27.2°C | 29.2°C | 25.9°C | 317 mm | 82% | 4 m/s | 5.7 |
| 2000 | 28.4°C | 28.0°C | 27.7°C | 29.1°C | 26.8°C | 161 mm | 80% | 4.5 m/s | 6.5 |
| 1999 | 28.2°C | 27.9°C | 27.5°C | 29.0°C | 26.7°C | 129 mm | 78% | 3.9 m/s | 6.4 |
| 1998 | 28.3°C | 27.9°C | 27.5°C | 29.5°C | 26.6°C | 215 mm | 81% | 5 m/s | 5.9 |
| 1997 | 27.7°C | 27.4°C | 27.1°C | 28.5°C | 25.8°C | 170 mm | 83% | 5.9 m/s | 6.2 |
| 1996 | 27.8°C | 27.4°C | 27.0°C | 28.6°C | 26.0°C | 179 mm | 83% | 5.3 m/s | 6 |
| 1995 | 28.2°C | 27.9°C | 27.5°C | 28.7°C | 26.9°C | 86 mm | 77% | 3.1 m/s | 6.9 |
| 1994 | 28.3°C | 27.9°C | 27.5°C | 28.9°C | 26.8°C | 279 mm | 84% | 4.4 m/s | 6 |
| 1993 | 28.1°C | 27.7°C | 27.4°C | 28.7°C | 26.7°C | 279 mm | 84% | 4.2 m/s | 5.6 |
| 1992 | 28.2°C | 27.8°C | 27.3°C | 29.1°C | 25.7°C | 240 mm | 82% | 4.3 m/s | 5.7 |
| 1991 | 27.7°C | 27.3°C | 26.9°C | 29.2°C | 24.9°C | 405 mm | 81% | 5.9 m/s | 5.9 |
| 1990 | 27.6°C | 27.3°C | 26.9°C | 29.0°C | 25.2°C | 269 mm | 82% | 5 m/s | 5.4 |
| 1989 | 27.4°C | 27.0°C | 26.6°C | 28.6°C | 25.4°C | 199 mm | 81% | 4.2 m/s | 6 |
| 1988 ❄️ | 27.0°C | 26.7°C | 26.3°C | 27.7°C | 25.2°C | 369 mm | 83% | 4 m/s | 5.5 |
| 1987 | 28.4°C | 28.0°C | 27.6°C | 29.2°C | 26.5°C | 363 mm | 82% | 5 m/s | 5.8 |
| 1986 | 27.8°C | 27.4°C | 27.0°C | 29.0°C | 26.0°C | 292 mm | 83% | 4.8 m/s | 5.6 |
| 1985 | 27.5°C | 27.1°C | 26.8°C | 28.4°C | 25.1°C | 208 mm | 80% | 3.1 m/s | 6.2 |
| 1984 🌧️ | 27.6°C | 27.1°C | 26.7°C | 28.7°C | 25.8°C | 468 mm | 81% | 4.1 m/s | 5.1 |
| 1983 | 27.5°C | 27.2°C | 26.8°C | 28.3°C | 25.4°C | 401 mm | 82% | 4.2 m/s | — |
| 1982 | 27.3°C | 26.9°C | 26.5°C | 28.6°C | 25.1°C | 21 mm | 79% | 4.5 m/s | — |
| 1981 | 28.0°C | 27.6°C | 27.2°C | 28.8°C | 26.2°C | 339 mm | 80% | 3.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 28.2°C with lows near 27.4°C (mean 27.8°C), based on 45 years of NASA POWER data.
December averages 242 mm of rainfall in Pago Pago, a relatively wet time of year. The wettest on record was 468 mm in 1984.
The hottest December reached 29.9°C in 2005. The coldest dipped to 24.9°C in 1991.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1°C. Daytime highs moved from 27.6°C to 28.6°C and overnight lows from 26.8°C to 27.8°C over the same span.
December is close to Pago Pago's year-round average and a relatively wet time of year, so plan for around 28.2°C daytime highs and 27.4°C at night.
Not quite — December is the 7th coolest month in Pago Pago, averaging 27.8°C.
For December in Pago Pago, pack light layers you can adjust through the day, with typical highs of 28.2°C and lows of 27.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 81% — quite humid.
Average wind speed in December is 4.4 m/s. The windiest December on record averaged 5.9 m/s (1991).
The wettest December on record was 1984 with 468 mm. On average, December sees 242 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Pago Pago behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
