New Caledonia Climate – June 2026 Update
Top 5 Cities: Nouméa, Mont-Dore, Dumbéa, Paita, and Lifou
This month in numbers
New Caledonia experienced its 4th warmest June on record, with an average temperature of 21.51°C, a significant 1.5°C above the 1961–1990 baseline. The period from April to June 2026 was the 2nd warmest on record, with an average temperature of 23°C, marking a 1.6°C anomaly above the baseline. Globally, June 2026 ranked as the 3rd warmest June for land temperatures, while the April-June period was the 2nd warmest on record for global land temperatures.
What changed
The consistently high temperatures in New Caledonia over the past three months stand out, with the April-June period being the second warmest in 86 years of records. This trend aligns with the broader South-West Pacific region, which experienced its second warmest year on record in 2025, behind 2024. New Caledonia's annual average temperature for 2025 was 23.08°C, making it the 5th warmest year on record. The long-term trend for the region shows a warming of +0.84°C compared to the 1961–1990 baseline.
What’s driving change?
The elevated temperatures in New Caledonia are consistent with the broader trend of ocean warming in the South-West Pacific region. This region is experiencing marine heatwaves, which disrupt ecosystems and fisheries. The ongoing influence of ENSO, with a potentially strong El Niño event developing in 2026, is also a significant factor, as El Niño phases typically nudge global temperatures higher. New Caledonia is also susceptible to tropical disturbances, with the cyclone season typically running from December to March.
Looking ahead
The evolving El Niño phase suggests that warmer-than-average conditions are likely to persist in the coming months for New Caledonia and the wider South-West Pacific.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Year-on-Year Trends
The 4byo Climate Helix – New Caledonia
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
New Caledonia – Monthly Temperature – All Years
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Records – New Caledonia
Our World in Data / NOAA - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm/cold + wet/dryKöppen Af · TropicalNew Caledonia has both a clear warm/cold cycle (±2.9°C) and a wet/dry cycle (3× wet:dry ratio). Both sides of the annual rhythm are shown below.
Monthly rainfall climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Feb (+66 mm, +33%).
Data: Our World in Data / NOAA (rainfall: World Bank CCKP / CRU TS 4.08). Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Rainfall & Precipitation
Rainfall & Rain Days – Totals
Headline: anomaly vs the 1961–1990 mean. Small figure: the actual value. Rank: position in the full record (1st = highest ever). Record: highest (or lowest) value on record with its year.
Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for New Caledonia
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) - see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in New Caledonia changing?
New Caledonia is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The headline panel also shows the long-term trend rate per decade and the warmest and coolest years on file.
Where does the climate data for New Caledonia come from?
Climate data for New Caledonia comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the New Caledonia climate data cover?
The New Caledonia climate profile covers Nouméa, Mont-Dore, Dumbéa, Paita and surrounding areas. Temperature, rainfall and emissions data for New Caledonia
How often is the New Caledonia climate update refreshed?
The New Caledonia climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.