4 Billion Years On

Portugal Climate – June 2026 Update

Top 5 Cities: Lisbon, Porto, Braga, Coimbra, and Funchal

This month in numbers

Portugal experienced its 3rd warmest June on record in 2026, with an average temperature of 22.37°C, a significant 3.4°C above the 1961–1990 baseline. Globally, June 2026 also ranked as the 3rd warmest on record for land temperatures, with an anomaly of +1°C. This comes after a period of intense heatwaves across Western Europe, including Portugal, which saw temperatures soar above 40°C in many areas.

What changed

The April–June 2026 period in Portugal was the 7th warmest on record, with an average temperature of 18.01°C, 2.4°C above the long-term average. This sustained warmth aligns with the broader Western European trend, which experienced its warmest June on record. The country's 1-month anomaly for June was 0.83°C warmer than the average for the entire Europe group, highlighting the particularly acute heat experienced in the Iberian Peninsula. Portugal has also seen a significant increase in wildfires, with over 30,000 hectares burned so far in 2026, making it the worst year for burned areas since 2017.

What’s driving change?

The extreme heat in Portugal and across Western Europe is largely driven by , which have trapped hot air for extended periods. The current weak El Niño phase is also contributing to warmer and drier conditions in the Mediterranean region, amplifying the risk of heatwaves and wildfires. Additionally, , a consequence of previous hot spells and ongoing drought conditions, has reduced evaporative cooling, allowing temperatures to rise more rapidly. Portugal also experienced significant flooding earlier in the year due to storms Kristin, Leonardo, and Marta, which brought heavy rainfall and saturated soils, leading to widespread damage and raising concerns for potential wildfires in the summer.

Looking ahead

Forecasts suggest that the strong El Niño is highly likely to continue through early 2027, indicating a continued risk of warmer and drier conditions for Portugal in the coming months.

Generated by Gemini from climate data and web sources

At a Glance

Temperature – Average

Portugal
Global
Land + Ocean
Jun
+3.2°C· 5th
22.1°C
+1.0°C· 2nd
16.6°C
Record
22.7°C (1943)
16.7°C (2024)
Apr–Jun
+3.0°C· 3rd
18.6°C
+1.0°C· 2nd
15.8°C
Record
18.8°C (2017)
15.9°C (2024)
2025
+1.6°C· 4th
16.1°C
+1.0°C· 3rd
15.0°C
Record
16.4°C (2022)
15.2°C (2024)
Headline: anomaly vs the 1961–1990 mean · Small figure: the actual value · Record = highest (or lowest) value on record

Year-on-Year Trends

The 4byo Climate Helix – Portugal

1940202619611990 baselineColdest (1978)20162025 meanWarmest (2022)2026 so far
2026Jun
2022
WetDryJanFebMarAprMayJunJulAugSepOctNovDecWet Start+1 daysWet End+2 days10°15°20°25°
Temp
14.8°C
+0.2 vs base
Rainfall
mm
ENSO
ONI 3-mo mean
Playback
8×
Mode
Metric
Presets

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.

Portugal – Monthly Temperature – All Years

Metric
All years since 19872022 (warmest)2026 (current year)

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 – Portugal

Warmest year
2022
16.4°C
Coldest year
1978
12.9°C
2026 so far
#1/87
14.8°C

Our World in Data / NOAA - Anomalies vs 1901-2000 mean

Shifting Seasons

Warm/cold + wet/dryKöppen Csa · Temperate

Portugal has both a clear warm/cold cycle (±7.0°C) and a wet/dry cycle (14× wet:dry ratio). Both sides of the annual rhythm are shown below.

Shifting summer
21 days longer
Warm season
1940–1969 baseline: 3 May → 24 Oct · 174 days
2016–2025 now: 21 Apr → 2 Nov · 195 days
J
F
M
A
M
J
J
A
S
O
N
D
Spr 12 days earlierAut 9 days later
Shifting wet season
1 day longer
Wet season
1940–1969 baseline: 16 Nov → 17 Mar · 122 days
2016–2025 now: 17 Nov → 19 Mar · 123 days
J
F
M
A
M
J
J
A
S
O
N
D
Onset 1 day laterEnd 2 days later
+1.2% annual rain
baseline yr·recent yr·ring = global temp anomaly
Wet-season onset
16 Nov17 Nov
1 day later
When 25% of annual rain has fallen
Wet-season end
17 Mar19 Mar
2 days later
When 75% of annual rain has fallen
Peak-rain month
NovDec
+1 month
Wet months: 67

Monthly rainfall climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Feb (-24 mm, -23%).

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

Rainfall / Precipitation
Portugal
n/a
n/a· n/a
Record
n/a
n/a
n/a· n/a
Record
n/a
2024
-67 mm· 48th
774 mm
Record
1224 mm (1963)

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 Portugal

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 Portugal changing?

Portugal 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 Portugal come from?

Climate data for Portugal 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 Portugal climate data cover?

The Portugal climate profile covers Lisbon, Porto, Braga, Coimbra and surrounding areas. Temperature, rainfall and emissions data for Portugal

How often is the Portugal climate update refreshed?

The Portugal 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.