4 Billion Years On

Algeria Climate – June 2026 Update

Top 5 Cities: Algiers, Oran, Constantine, Annaba, and Blida

This month in numbers

Algeria experienced its 8th warmest June on record, with an average temperature of 33.29°C, marking an anomaly of +2.1°C compared to the 1961–1990 baseline. The period of April to June 2026 was the 7th warmest on record, with an average temperature of 29.11°C, an anomaly of +2.4°C. Globally, June 2026 was the 3rd warmest June on record for land temperatures, with an anomaly of +1°C, while the April-June period ranked as the 2nd warmest globally, also with an anomaly of +1°C.

What changed

Algeria has been experiencing a consistently warmer trend, with the latest three-month period (April-June) being significantly warmer than average. This aligns with a broader pattern across the Africa group, where the average 1-month anomaly was +1.58°C, and Algeria's anomaly was 0.51°C warmer than this group average. The country's long-term trend shows a warming of +2.00°C compared to the 1961–1990 baseline, with 2025 being the warmest year on record.

What’s driving change?

The persistent warmth in Algeria is largely driven by a strong El Niño event, which is currently active and forecast to continue throughout the rest of 2026. El Niño typically brings warmer and drier conditions to the Mediterranean region during summer, amplifying heatwave and wildfire risks. Indeed, Algeria experienced an intense heatwave in June, with temperatures exceeding 42°C in several northern inland provinces and reaching as high as 49°C in the far south. This heatwave contributed to a pattern of unusually high temperatures observed across Algeria since the beginning of summer. The country has also been grappling with a multi-year drought, which exacerbates the impact of these heatwaves through .

Looking ahead

The strong El Niño is expected to continue strengthening through the northern hemisphere autumn, increasing the likelihood of continued heatwaves and drought conditions in Algeria in the coming months.

Generated by Gemini from climate data and web sources

At a Glance

Temperature – Average

Algeria
Global
Land + Ocean
Jun
+2.7°C· 4th
34.0°C
+1.0°C· 2nd
16.6°C
Record
34.8°C (2024)
16.7°C (2024)
Apr–Jun
+1.9°C· 13th
28.7°C
+1.0°C· 2nd
15.8°C
Record
30.4°C (2021)
15.9°C (2024)
2025
+2.1°C· 5th
24.8°C
+1.0°C· 3rd
15.0°C
Record
25.4°C (2024)
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 – Algeria

1940202619611990 baselineColdest (1943)20162025 meanWarmest (2024)2026 so far
2026Jun
2024
WetDryJanFebMarAprMayJunJulAugSepOctNovDec1901-302016-25Wet Start−13 days1901-302016-25Wet End+9 days10°15°20°25°30°35°
Temp
22.7°C
+0.1 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.

Algeria – Monthly Temperature – All Years

Metric
All years since 19872024 (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 – Algeria

Warmest year
2024
25.4°C
Coldest year
1943
21.1°C
2026 so far
#7/87
22.7°C

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

Shifting Seasons

Warm/cold + wet/dryKöppen BWh · Arid

Algeria has both a clear warm/cold cycle (±11.1°C) and a wet/dry cycle (5× wet:dry ratio). Both sides of the annual rhythm are shown below.

Shifting summer
30 days longer
Warm season
1940–1969 baseline: 17 Apr → 20 Oct · 186 days
2016–2025 now: 30 Mar → 1 Nov · 216 days
J
F
M
A
M
J
J
A
S
O
N
D
Spr 18 days earlierAut 12 days later
Shifting wet season
22 days longer
Wet season
1940–1969 baseline: 29 Oct → 14 Mar · 136 days
2016–2025 now: 16 Oct → 23 Mar · 158 days
J
F
M
A
M
J
J
A
S
O
N
D
Onset 13 days earlierEnd 9 days later
-19.7% annual rain
baseline yr·recent yr·ring = global temp anomaly
Wet-season onset
29 Oct16 Oct
13 days earlier
When 25% of annual rain has fallen
Wet-season end
14 Mar23 Mar
9 days later
When 75% of annual rain has fallen
Peak-rain month
JanNov
+10 month
Wet months: 64

Monthly rainfall climatology. A “wet month” exceeds the baseline monthly mean (dashed gold line). Biggest month-to-month shift: Jan (-4 mm, -38%).

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
Algeria
n/a
n/a· n/a
Record
n/a
n/a
n/a· n/a
Record
n/a
2024
-26 mm· 75th
51 mm
Record
131 mm (1972)

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 Algeria

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 Algeria changing?

Algeria 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 Algeria come from?

Climate data for Algeria 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 Algeria climate data cover?

The Algeria climate profile covers Algiers, Oran, Constantine, Annaba and surrounding areas. Temperature, rainfall and emissions data for Algeria

How often is the Algeria climate update refreshed?

The Algeria 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.