Oceania Climate – June 2026 Update
Top 5 Countries: Australia, New Zealand, Papua New Guinea, Fiji, and Solomon Islands
This month in numbers
Oceania experienced a significantly warmer June 2026, with a 1-month anomaly of +1.14°C above the 1961–1990 average. This continues a warming trend, as the 3-month anomaly stands at +0.83°C and the 12-month rolling anomaly at +0.82°C. Globally, June 2026 was the second-warmest June on record, with Oceania recording its third-warmest June.
Hottest & coolest countries
Within Oceania, New Zealand recorded a particularly warm month, with an anomaly of +2.32°C. Australia also experienced significantly above-average temperatures, at +1.10°C. Fiji was one of the few places globally to experience cooler-than-average temperatures, with an anomaly of -0.43°C.
What's driving change?
The dominant driver for the current conditions in Oceania is the strengthening El Niño. El Niño conditions are present and have intensified, with the NOAA ONI 3-month anomaly for April-June 2026 at +0.98°C. Forecasts indicate a 100% probability of El Niño continuing through the end of 2026, with a strong event expected to develop. El Niño typically brings warmer and drier conditions to parts of Australia and Southeast Asia, and can contribute to marine heatwaves. The global ocean surface temperature was the warmest on record for June, contributing to widespread warmer-than-average conditions. This aligns with the broader trend of .
Looking ahead
Current forecasts suggest that the strengthening El Niño event will continue to influence global temperature and rainfall patterns, likely leading to even warmer conditions in the coming months for Oceania.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Climate Map – Global
Source: NOAA Climate at a Glance (countries & continents) · Met Office (UK) · US states & climate regions. Temperature anomalies are vs the 1961–1990 baseline. See methodology.
Hottest & Coolest in Oceania this Month
1-month anomaly vs 1961–1990 across the 2 members we cover. Click a name to open its profile.
Warmest
- 1.🇳🇿New Zealand+2.32°C
- 2.🇦🇺Australia+1.10°C
Coolest
- 1.🇦🇺Australia+1.10°C
- 2.🇳🇿New Zealand+2.32°C
Year-on-Year Trends
The 4byo Climate Helix – Oceania
4byo continent aggregate · equal-weight mean of member country monthly absolute temperatures (OWID/CRU TS).
Oceania – Monthly Temperature – All Years
4byo continent aggregate · equal-weight mean of member country monthly absolute temperatures (OWID/CRU TS).
Records – Oceania
4byo continent aggregate · equal-weight mean of member country monthly absolute temperatures (OWID/CRU TS). - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm / cold seasonsKöppen Cfb · TemperateHow spring and autumn have shifted in Oceania. Spring is defined as the date monthly temperatures first rise above the long-term annual mean (15.6°C, from 1940–1969); autumn is the date they fall back below it. Temperature swings 11.9°C peak-to-peak across the year - a classic four-seasons rhythm.
Baseline vs recent monthly temperature climatology. Biggest warming: Jul (+1.5°C).
4byo continent aggregate · OWID/CRU TS country monthly temperatures & rainfall. Baseline: first 30 yrs on record. Recent: last 10 yrs on record.
Climate Systems
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Emissions & Energy
Explore
Explore Climate Data
Data Sources
Data Sources for Oceania
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.
Continental land temperature anomaly. NOAA NCEI national & continental time series.
Country-level temperature anomaly, sourced from Copernicus ERA5 and Hadley HadCRUT5.
Annual country and global CO₂ emissions, from the Global Carbon Project.
FAQs
FAQs
How is the climate in Oceania changing?
Oceania 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 Oceania come from?
Climate data for Oceania 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 Oceania climate data cover?
The Oceania climate profile covers Australia, New Zealand, Papua New Guinea, Fiji and surrounding areas. Australia, New Zealand and the Pacific - continental temperature trends
How often is the Oceania climate update refreshed?
The Oceania 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.