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Has the climate in Vanimo changed?

Vanimo has warmed about 1.1°F between 1996 and 2024.

About 0.4°F per decade, measured from Vanimo's official daily weather records, 1996–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Vanimo's warming is broadly in line with other cities across Oceania — neither unusually fast nor unusually slow.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Average temperature
+0.9°F
1970s
81.0°F
Recent
81.8°F
A steady upward drift

Vanimo's temperature, year by year

Average temperature for each year from 1996 to 2024.

79°81°83°1996: 81.6°F1997: 81.4°F1998: 81.2°F1999: 80.8°F2000: 80.6°F2001: 80.5°F2005: 81.0°F2006: 80.6°F2007: 80.7°F2008: 80.2°F2009: 80.6°F2010: 81.4°F2011: 80.7°F2012: 80.7°F2013: 81.0°F2015: 82.5°F2016: 82.1°F2017: 81.7°F2018: 81.5°F2019: 81.5°F2020: 82.4°F2021: 81.8°F2022: 82.0°F2023: 81.9°F2024: 81.9°Flong-term trend19962000201020202024
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

Methodology & sources

Temperature — 1991–2020 normals computed from 23 years of daily observations at Sentani, a weather station, about 88 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →