2026
Highest E. coli median among years in the available sample history
The median E. coli result across all samples recorded in 2026 so far is 9 cfu/100 ml, higher than the median for any other year in MiCharco’s available sample history.
01Official data · Tenerife
Tenerife Data Overview
A Tenerife-wide view of official bathing-water results and coastal events recorded by MiCharco.
Latest official sample recorded: 16 Sept 2026
What the data shows
Aug 26
Highest monthly E. coli median in the available sample history
The median E. coli result across samples recorded in August 2026 was 29 cfu/100 ml, the highest monthly median in MiCharco’s available sample history.
0264%
of recorded 2026 coastal events fall in just two months
August and September account for 9 of the 14 coastal events recorded by MiCharco through September 2026.
0329 vs 470
Median and maximum values tell very different stories
In August 2026, the E. coli median was 29 cfu/100 ml, while the highest individual sample recorded that month reached 470 cfu/100 ml.
043 of 3
Months with more recorded events did not consistently have higher E. coli medians
Among the 3 months with the most recorded coastal events in 2026, only 3 had an E. coli median above the median for the full available sample history (4.3 cfu/100 ml).
05About these figures: Medians are calculated across individual official samples in MiCharco’s available dataset. They describe the recorded data and should not be interpreted as a real-time assessment of Tenerife’s bathing-water quality.
Official data
Official microbiology
Official bathing-water test results across Tenerife, showing patterns in E. coli and intestinal enterococci over time.
Monthly median (cfu/100 ml)E. coliIntestinal enterococci
Each indicator is compared with its own Excellent classification reference: E. coli 250 cfu/100 ml and intestinal enterococci 100 cfu/100 ml. Each point is the monthly median; hovering shows the number of samples and the highest recorded value.
Documented events
Recorded coastal events
Bathing restrictions, closures, pollution alerts, discharges and infrastructure failures documented from official sources and other sourced reports. This section is separate from microbiological testing.
Monthly trendEvents in month
Period: August 2023 – September 2026
Every month in the available period appears on the axis, including those with no recorded events. The line connects the monthly values and the dots mark the highest peaks; hovering shows the number of events recorded that month.