4 Billion Years On

Global Climate – July 2026 Update

Summary

Global temperatures reached extraordinary levels in July 2026 as planetary surface heat averaged 16.98°C, an anomaly of +1.07°C above the 1961–1990 baseline that made it the 2nd warmest on record for the month. Exceptional heatwaves scorched western Europe, where countries including Switzerland, Spain and France recorded monthly departures exceeding +4.5°C, intensifying severe droughts and triggering widespread wildfires. Global ocean surface temperatures also surged to unprecedented highs, propelled by a moderate El Niño that is intensifying and forecast to peak at Very Strong in Oct-Dec.

This month in numbers

In July 2026, the global combined land and ocean surface temperature reached 16.98°C, standing +1.07°C above the 1961–1990 WMO baseline and ranking as the 2nd warmest on record for the month. Over the 3-month window from May to July 2026, the global anomaly averaged +1.00°C, also ranking 2nd in the 77-year dataset. Looking at long-term climate policy benchmarks, the 10-year rolling average for 2017 to 2026 stands at 14.93°C, which is +1.43°C above pre-industrial levels and sits immediately below the Paris Agreement 1.5°C threshold.

Land vs ocean

Global land surfaces averaged 15.82°C in July 2026, an anomaly of +1.44°C above baseline that ranked as the 3rd warmest on record. By contrast, global oceans reached 17.42°C with a +0.89°C anomaly, setting an all-time record high for the month. Although ocean anomalies appear smaller numerically, surfaces because land requires far less energy to heat and cannot transfer warmth into deeper water layers.

Cross-region picture

Nine of the top 10 warmest 1-month anomalies across all tracked regions occurred in European countries, led by Switzerland at +5.44°C, Spain at +4.92°C and France at +4.63°C above baseline averages.

What’s driving change?

The underlying planetary trend is driven by greenhouse gas emissions, further amplified by natural climate variability and atmospheric patterns. A moderate El Niño in the tropical Pacific, tracked at ENSO with a Relative Niño Index of +0.98°C, is strengthening ocean heat and is forecast with an 81% probability to reach Very Strong intensity in Oct-Dec. In Europe, persistent locked scorching air in place, drying out soils and priming landscapes for burning. Wildfire clusters have also been monitored across Angola and Russia this month, see Extreme Weather tracker. Meanwhile, heavy seasonal rains triggered major flooding in China, tracked at Extreme Weather tracker.

Looking ahead

Seasonal climate outlooks indicate that elevated global temperatures and ocean heat will persist into autumn, with the intensifying El Niño expected to heighten extreme weather risks across multiple continents over the next 1-3 months.

Generated by Gemini from climate data and web sources

At a Glance

Temperature – Average

Land
Ocean
Land + Ocean
Jul
+1.4°C· 3rd
15.8°C
+0.9°C· 1st
17.4°C
+1.0°C· 2nd
17.0°C
Record
16.0°C (2024)
17.4°C (2026)
17.0°C (2024)
May–Jul
+1.3°C· 2nd
14.3°C
+0.8°C· 1st
17.4°C
+1.0°C· 2nd
16.5°C
Record
14.6°C (2024)
17.4°C (2026)
16.5°C (2024)
2025
+1.6°C· 2nd
10.3°C
+0.7°C· 3rd
16.9°C
+1.0°C· 3rd
15.0°C
Record
10.4°C (2024)
17.1°C (2024)
15.2°C (2024)
Source: NOAA NCEI. Actual values = NOAA's 1901–2000 monthly mean plus the month's departure. NOAA and ERA5 absolute levels differ by construction; anomalies are the comparable figures. Headline: anomaly vs your selected baseline (falls back to the 1961–1990 mean for a column without enough history for it) · Small figure: the actual value · Record = value on record for the ranking above

Climate Map – Global

Source: NOAA Climate at a Glance (countries & continents) · Met Office (UK) · US states & climate regions. Anomalies are vs the 1961–1990 baseline. See methodology.

Long-Term Trends

Combined TimelineGlobal

Right axis: everything else standardized to standard deviations (σ) from its own average, since mm/hours/days aren't directly comparable to °C or to each other.

MetricTemperature
10-Yr AverageActual Year

Source: NOAA NCEI (temperature, land + ocean); World Bank CCKP / GPCC (precipitation, snow).

Heatwave Days – Global

Warm Spell Duration Index (WSDI) - the WMO/ETCCDI heatwave measure: days in a 6+ day run above the local 90th-percentile temperature for that time of year. Land-area-weighted mean across 169 countries.

Heatwave Days per Year2024 (Record)10-Yr Avg

Data: World Bank Climate Change Knowledge Portal (ERA5-derived). Refreshed roughly 1-2x/year, ~7-8 months behind present.

Paris Agreement Tracker

How close are we to 1.5°C and 2°C? Global land + ocean surface temperature (NOAA) – the series used by Copernicus, WMO and the IPCC.

+1.43°C

above pre-industrial

Earth's surface is currently 1.43°C warmer than the pre-industrial (1850–1900) average, based on the 10-year mean for 20172026. Climate scientists use a decade average, not a single year, to smooth out natural variability (El Niño, volcanoes) and define long-term warming, in line with WMO and IPCC AR6 methodology. A single year can cross 1.5°C and then fall back; the Paris limit is considered breached only once the 10-year mean stays above it.

Paris 1.5°C limit95% of the way there

1.5°C15.0°C absolute · aspirational lower limit agreed at COP21 Paris (2015)

Paris 2.0°C upper bound71% of the way there

2.0°C15.5°C absolute · dangerous-warming ceiling; every 0.1°C above 1.5°C measurably worsens heatwaves, sea-level rise and ecosystem loss

Warming above pre-industrial, 20002026

Thin orange line = individual years · thick gold line = 10-year mean (the official Paris tracker) · amber dashes = +1.5°C Paris limit · red dashes = +2.0°C critical limit · green dashes = pre-industrial 1850–1900 baseline · blue dashes = WMO 1961–1990 standard baseline · vertical orange dash = first annual anomaly above +1.5°C (2023). All values are anomalies vs the 1850–1900 pre-industrial average.

10-year mean (20172026)

+1.43°C

14.93°C absolute · official Paris metric

Latest full year (2026)

+1.54°C

15.04°C absolute

Hottest year on record

+1.66°C

in 2024

First year above 1.5°C

2023

+1.57°C - a single-year breach, not yet the 10-yr mean

Two baselines, two purposes

  • Pre-industrial (1850-1900)13.5°C - used only for the Paris 1.5°C and 2.0°C limits above.
  • 1961-1990 (WMO standard) - used for the monthly/quarterly rankings in the table above and on country pages. A relatively stable mid-20th-century reference.

Year-on-Year Trends

The 4byo Climate Helix – Global Land + Ocean

1950202619611990 baselineColdest (1964)20162025 meanWarmest (2024)2026 so far
2026Jul
2024
JanFebMarAprMayJunJulAugSepOctNovDecParis +1.5°CParis +2°C12°14°16°
Temp
14.9°C
+1.0 vs base
CO2
430ppm
Annual mean
Sea level
84mm
Sat mean
Sea ice
20Mkm²
Global mean
ENSO
RONI 3-mo mean
Playback
8×
Mode
Presets

NOAA Climate at a Glance - Global Land+Ocean - Paris rings vs global 1850-1900 mean (13.5°C).

Monthly TemperatureGlobal Land + Ocean

Series
All years since 19642024 (Warmest)1964 (Coldest)2026 (Current Year)

Background lines show the last 40 years (plus the record year and its opposite, wherever they fall).

Data: NOAA Climate at a Glance - the headline series Copernicus, WMO and NOAA report against.

Records – Global

Temperature
Latest data Jul 2026
Warmest year
2024
15.1°C
Coldest year
1964
13.7°C
2026 so far
#3/77
14.9°C

NOAA Climate at a Glance - Global Land+Ocean - Anomalies vs 1901-2000 mean

Shifting Seasons Worldwide

Loading worldwide seasonal-shift data…

Global Temperature

Land vs Ocean - Long-Term Trend

10-year rolling anomaly vs 1961–1990

Land has less heat capacity than water and loses no energy to evaporative cooling, so its anomaly climbs well above the ocean's steadier rise.

Source: NOAA Climate at a Glance

Last 12 Months vs 1961–1990

Monthly anomaly - NOAA (bars) vs ERA5 (line)

Land warms roughly twice as fast as the ocean, so the line runs well above the bars.

Source: NOAA Climate at a Glance (land + ocean); Our World in Data (land, ERA5)

Ocean Temperature

Global Ocean · Absolute Temperature

Jul 2026:17.4°CWarmest on Record
12-month avgMonthly

Ocean covers ~71% of Earth's surface, so its temperature moves the global average more than any other single factor.

Source: NOAA Climate at a Glance

Global Sea Ice Extent

Arctic + Antarctic Combined · Absolute Extent

Jul 2026:22.72 Mkm²4th-Lowest of 48 Years
12-month avgMonthly

Last 60 months. Thick line shows 12-month rolling average – Arctic loss exceeds Antarctic variability.

Source: NSIDC via global-warming.org

Climate Systems

ENSO - El Niño

The El Niño-Southern Oscillation (ENSO) is the single biggest year-to-year driver of global temperature and rainfall after the long-term warming trend itself. It is also a natural amplifier of climate change.

ENSO state

intensifying
El Niño· moderate
93% very strong at peak · Sep-Nov

Warm Pacific - Global Temperatures Rise

RONI · 3-mo mean

El Niño

+0.98°C · MJJ 2026 · ONI +1.39°C

Niño 3.4 · latest

+2.60°C

SST 29.5°C · w/e 05-08-26

NOAA Observed NOAA Forecast 90% Range Weekly SST (raw) El Niño La Niña

What's Coming

NOAA forecast

Very Strong at peak

Peak +2.7/+3.1°C (RONI/ONI median)

El Niño conditions are already in place and forecast to peak at 100% probability in JAS-JFM. The dashed off-white curve (shaded band = 90% range) is NOAA’s own official RONI outlook, peaking in OND 2026. The current forecast was issued August 2026.

ONI stands for Oceanic Niño Index; RONI stands for Relative Oceanic Niño Index, and both measure Sea Surface Temperature (SST) for the Niño 3.4 region. Strength is classified on RONI - NOAA’s official index since Feb 2026 - which subtracts the tropics-wide warming background so events are ranked consistently across the decades.

Sources: NOAA CPC Oceanic Niño Index (ONI), NOAA CPC Relative ONI (RONI), NOAA CPC weekly Niño 3.4, NOAA official RONI outlook, NOAA CPC probability outlook, SNU ACE Lab CNN forecast. RONI methodology: Stockdale (2026, ECMWF); forecasts converted from raw Niño 3.4 by the observed ~0.5°C ONI−RONI gap.

Emissions & Energy

Explore

Data Sources

Baselines

1961–1990

WMO standard - used for the monthly and quarterly anomalies above.

Pre-industrial ≈ 13.5°C

1850–1900. Used only for the Paris 1.5°C / 2.0°C limits (10-year mean).

20th-century mean 13.9°C

NOAA’s reference for individual monthly and yearly anomalies.

FAQs

FAQs

What does this global climate update show?

A monthly snapshot of the global climate: surface temperature anomalies relative to pre-industrial levels, ocean and land warming, sea ice extent, atmospheric CO₂, methane and nitrous oxide concentrations, ENSO phase and the latest position against the 1.5°C (2.7°F) and 2°C (3.6°F) Paris Agreement targets. The current month's numbers are shown in the live data panels above.

Which baselines are used to measure global warming?

The headline figure compares the trailing 10-year mean to the 1850-1900 pre-industrial baseline, in line with the IPCC. Shorter-term anomalies are calculated against the 1991-2020 climate normal, the WMO standard. Both baselines are labelled directly on each chart.

Where does the global climate data come from?

Surface temperature: NOAA NCEI, NASA GISS and Hadley Centre HadCRUT5. Greenhouse gases: NOAA Global Monitoring Laboratory. Sea ice: NSIDC. Ocean heat content: Copernicus / NOAA. ENSO: NOAA Climate Prediction Center. Pre-industrial baselines and emission pathways: IPCC AR6. Full source list at Methodology & Sources.

Has Earth already passed the 1.5°C warming limit?

The 1.5°C (2.7°F) target in the Paris Agreement refers to a long-term mean - usually a 10- to 20-year average versus the 1850-1900 pre-industrial baseline. Individual years can briefly exceed 1.5°C (2.7°F) without the long-term threshold being crossed; 2024 was the first calendar year above that line. The Paris Tracker on this page shows the trailing 10-year mean (the official WMO/IPCC interpretation) and the 12-month running mean side-by-side, so you can read both figures at a glance and see how close the long-term mean now sits to 1.5°C (2.7°F).

When will Earth reach 2°C of warming above pre-industrial levels?

There is no fixed calendar date - it depends on the global emissions pathway over the next two decades. IPCC AR6 projects the trailing 20-year mean reaches 2°C (3.6°F) in the early-to-mid 2040s under intermediate emissions (SSP2-4.5) and could be delayed to the 2050s under deep mitigation (SSP1-2.6). The chart on this page extrapolates the current observed trend to flag the year the trailing 10-year mean is on track to cross 2°C (3.6°F) if the present rate continues - a useful early-warning indicator, not a forecast.

What is the pre-industrial baseline and why 1850-1900?

1850-1900 is the earliest 50-year window with broad, reliable instrumental coverage of global temperature. Earlier periods rely on sparser proxy records. The IPCC and WMO standardised on this window so every assessment uses the same starting point when reporting how much the planet has warmed. All Paris-Agreement-relevant warming figures on 4 Billion Years On are quoted against 1850-1900.

How much have CO₂, methane and nitrous oxide concentrations changed?

CO₂ has risen from a pre-industrial ~280 ppm to a current monthly value shown live in the greenhouse-gas panel above (NOAA Mauna Loa series). Methane and nitrous oxide are tracked in the same panel using NOAA Global Monitoring Laboratory marine boundary-layer averages. Each tile shows the current monthly mean, the year-on-year change and the long-run growth rate - we deliberately do not bake the live numbers into this FAQ so the answer never goes stale.

How often is this page updated?

The live data panels refresh on each page request from a monthly cache that rebuilds within days of the underlying datasets being released (typically the first half of each month). The AI-written narrative summary refreshes on the same monthly cadence.

Where can I see country, regional or city-level climate data?

See the Climate Hub for every country, US state and UK region we track, the Climate Rankings for sortable cross-region anomalies, and the Methodology & Sources for the complete data-source and baseline reference.