Laos Climate – June 2026 Update
Top 5 Cities: Vientiane, Savannakhet, Pakse, Luang Prabang, and Thakhek
This month in numbers
Laos experienced its 17th warmest June on record, with an average temperature of 25.72°C, which is 1.0°C above the 1961–1990 baseline. The period of April to June 2026 ranked as the 13th warmest such period in 86 years, with an average temperature of 25.62°C, an anomaly of +0.9°C. Globally, June 2026 was the 3rd warmest June on record for land temperatures, and the April–June period was the 2nd warmest globally for land temperatures.
What changed
Laos has seen a consistent warming trend over the past few months, with April, May, and June all recording temperatures significantly above their historical averages. The country's average temperature for the latest 12-month rolling period (July 2025–June 2026) places it 206th out of 234 regions globally for temperature anomaly, indicating that while Laos is warming, other regions are experiencing more extreme deviations from their historical averages. The full year 2025 was the warmest on record for Laos, at 24.24°C.
What’s driving change?
The warming trend in Laos is influenced by the broader global warming patterns, with the country experiencing the effects of . Heavy rainfall and flooding were reported across several provinces in late June and early July, exacerbated by the circulation of Typhoon Maysak and a strong southwest monsoon. Flash floods affected villages, agricultural land, and infrastructure in Bokeo and Phongsaly provinces, with further flooding and landslides in Khammouane Province in early July. The Lao government has been actively addressing flood preparedness and urban environmental management to mitigate these impacts.
Looking ahead
The ongoing strong southwest monsoon is expected to continue bringing widespread thunderstorms and moderate to heavy rainfall across northern and central Laos in the coming weeks, maintaining a risk of further flooding, flash floods, and landslides.
Generated by Gemini from climate data and web sources
At a Glance
Temperature – Average
Year-on-Year Trends
The 4byo Climate Helix – Laos
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.
Laos – 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 – Laos
Our World in Data / NOAA - Anomalies vs 1901-2000 mean
Shifting Seasons
Warm/cold + wet/dryKöppen Aw · TropicalLaos has both a clear warm/cold cycle (±3.1°C) and a wet/dry cycle (16× 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: Sep (+42 mm, +17%).
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 Laos
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 Laos changing?
Laos 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 Laos come from?
Climate data for Laos 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 Laos climate data cover?
The Laos climate profile covers Vientiane, Savannakhet, Pakse, Luang Prabang and surrounding areas. Temperature, rainfall and emissions data for Laos
How often is the Laos climate update refreshed?
The Laos 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.