Temperature
Is South Asia getting hotter?
The year-to-year temperature moves up and down, but the long-term direction is clear: South Asia is getting warmer. Every area we analyzed warmed (234 of 234).
Explore climate trends
NASA Space Apps Challenge 2026
See how South Asia's climate is changing.
45 years of NASA data, explained simply: where it is getting hotter, where the rain is moving, and which places should get ready for floods, landslides and fires.
Or search your city
45 years of change · 1981–2025
How much warmer each year was than normal
Each yearLong-term trend°C warmer than the long-term average
+1.4°C warmer since 198145 annual observations
Download data Show as a table
The year-to-year swings are real, but the long-term direction is clear: South Asia is getting warmer.
Explore the full trendPhotos: Wikimedia Commons / Bangladesh flood series
45 years of Earth data reveal signals we normally cannot see.
What changed — and why it matters.
NASA Data
45 years of Earth observations
Long-term Trends
See what changed and where
Hazard Signals
Connect change with past events
Preparedness
Turn signals into useful context
What changed?
The evidence is not one number.
+1.4°Csince 1981
Rainfall
Is rainfall changing the same way everywhere?
Getting wetter37
Getting drier23
No clear trend86
Rainfall is not changing uniformly — some places are getting wetter while others are getting drier.
See where rainfall is changingWhy it matters
Different signals can mean different local concerns.
Indus plain
Monsoon rainfall
Floods concern
Western Himalaya
Monsoon rainfall
Landslides concern
Central Indian forest belt
Pre-monsoon temperature
Wildfires concern
These changes do not predict disasters, but they can show where preparedness deserves attention.
Explore disaster riskLatest conditions
The latest month
How recent observations compare with the long-term normal: 1951–1980 for temperature and 1991–2020 for rain.
August 2026Temperature
+1.7 °C
warmer than normal
The hottest August across South Asia since 1981 (46 years on record).
June 2026Rainfall
90%
of usual rainfall
Close to usual for June, compared with the 1991–2020 average. Rain data is published a few months after temperature.
45-year findings
In one minute
Three things our analysis revealed.
Spring heats fastest
+0.34 °C
every 10 years in March–May, the hot weeks before the monsoon, and faster still in the mountains.
Learn more →The rain is moving
+14%Indus plain−4%Bengal delta
monsoon rain every 10 years: the dry Indus plain gets more, the Bengal delta gets less. Two independent records agree.
Learn more →Places to watch in 2025
2 regions
Indus plain and Western Himalaya had weather like past disaster years.
Learn more →Method
How it works
- Step 1Satellites measure
NASA satellites and records track temperature, rain, forests and fires across South Asia since 1981.
- Step 2We check what is real
Statistics separate a real long-term change from the normal ups and downs of the weather.
- Step 3We link it to disasters
We compare the weather with past floods, landslides, fires and cyclones, to show where to prepare.
Explore
Explore the data
Four tools, each answering one question. Pick the one that matches yours.
What does space see?
Satellite map
NASA satellite images of heat, rain, greenness and forest loss, month by month since 2000. Slide between two years to compare them.
South Asia trend1981–2025
+1.4 °C
warmer since 1981
19812025
- Heat trend
- Rising
- Delta rain
- −4%/decade
Is it really changing here?
Climate trends
Click any square of South Asia to see whether heat, rain, very hot months or dry spells are rising, by how much, and how sure we are.
Should we get ready?
Disaster risk
Past floods, landslides, fires and cyclones on the map, whether the weather explains them, and which regions look like past disaster years.
Place report
Dhaka
- Since 1981
- +1.5 °C
- Monsoon rain
- −3%/decade
- Floods, 150 km
- 19
What about my city?
Place reports
A one-page climate report for each of 54 cities: how much warmer it got, how the rain changed, and which disasters happen nearby.