Kilimanjaro Warms at Summit, Cools on Middle Slopes
University of Portsmouth researchers mapped temperature changes across Mount Kilimanjaro over 20 years using loggers and satellite data.
Updated on Nov. 6, 2026 in Geography
Researchers at the University of Portsmouth found that Mount Kilimanjaro is warming in some places and cooling in others. The study combined 22 temperature loggers with satellite observations to map temperatures across the mountain.
Why it matters
The findings show that climate change effects on high mountains are not uniform, with different elevations responding in opposite directions. Understanding these patterns helps explain shifts in local ecosystems on the mountain.
The study used 22 temperature loggers operating from 2004 to 2024 across elevations from 900 to 5,803 meters, with estimates produced at a one-kilometer resolution. Satellite land surface temperature was converted to air temperature through a predictive model, and the researchers noted this measure can differ substantially from air temperature.
The players
University of Portsmouth
A public university in Portsmouth, England, whose researchers conducted the study of temperature patterns on Mount Kilimanjaro.
The details
Temperature records collected over 20 years showed daytime warming near the summit and cooling between 3,000 and 3,500 meters. Most elevations experienced slight nighttime warming while summit temperatures remained broadly stable, and the cooling on the middle slopes coincides with the upslope expansion of the heathland zone.
Timeline
2004 to 2024: Temperature logger measurements recorded across Kilimanjaro.
November 6, 2026: Study findings published.
The Big Picture
The study shows that warming is not uniform up a tropical mountain, with the summit and middle slopes moving in opposite directions over the same two decades. Pairing ground loggers with satellite land surface temperature offers a way to map these elevation-specific trends at a one-kilometer scale.
Changes in mountain temperature zones can shift where plant communities grow, affecting the trails, farming areas, and water sources that people depend on at the base of the mountain. The study's satellite-based method could help track similar changes on other high peaks.
The takeaway
Warming on a mountain can differ sharply by elevation, so single-site readings may miss important patterns. Combining ground measurements with satellite data gives a fuller picture of how temperatures change across a landscape.
Further reading
Explore more mountain and landscape research in the Geography section.
Source note: This article includes information reported by AZoCleantech.
