Greece Outage Report, Summer 2026: 8,752 Reports From June to September, by Region, Day and Hour
Outage.gr's own numbers for June to September 2026: monthly volumes, which regions led each month, the busiest days and hours, and how power, internet and water reports split. With plain notes on what the data can and cannot show.
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Key Facts
- 8,752 reports between 1 June and 30 September, 78% of everything collected since February
- Monthly reports: June 859, July 1,829, August 2,783, September 3,281, October so far 1,659 (to the 20th)
- Crete led the report counts in August (936) and September (957), with Attica second both months
- The busiest day was 16 September with 431 reports (312 from Crete); the island-wide Crete blackout on 7 September was not among the top days
- Power is 96.9% of all reports; internet rose from 0.7% in June to 2.7% in September
This is the first full season of Outage.gr data. Our first report arrived on 15 February 2026, so there is no previous summer to compare with, and that shapes how to read every number below. Here is the plain version of what we have: the figures, who led, when things peaked, and the limits.
The headline numbers
Between 1 June and 30 September, Outage.gr received 8,752 reports (78% of the 11,247 reports collected since 15 February). Month by month:
| Month (2026) | Reports | Power | Internet | Water | Confirmations |
|---|---|---|---|---|---|
| June | 859 | 843 | 6 | 10 | 417 |
| July | 1,829 | 1,791 | 26 | 12 | 941 |
| August | 2,783 | 2,717 | 34 | 32 | 1,601 |
| September | 3,281 | 3,147 | 87 | 47 | 2,370 |
| October (to the 20th) | 1,659 | 1,598 | 47 | 14 | 1,065 |
A "confirmation" is someone saying "me too" on an existing report. Confirmations grew even faster than reports, from 417 in June to 2,370 in September, which tells us people are using the site to check what is happening around them.
Which regions led each month?
| Month | First | Second | Third |
|---|---|---|---|
| June | Thessaly (240) | Attica (209) | Epirus (92) |
| July | Attica (606) | Thessaly (306) | Crete (150) |
| August | Crete (936) | Attica (679) | South Aegean (192) |
| September | Crete (957) | Attica (667) | Western Greece (240) |
| October (to the 20th) | Crete (418) | Attica (382) | Peloponnese (128) |
Two things stand out. Attica is always in the top two from June onwards, which is consistent with it having the largest population and user base. Crete went from 21 reports in May and 150 in July to the top in August and September, with two clusters of events: the island-wide interconnection fault on 7 September (see Crete blackout, 7 September) and the storm outages on 15 and 16 September.
We do not claim that Crete had more outages than Attica per household. Counts follow where our users live and how willing they are to report.
The busiest days
| Date | Reports | Note |
|---|---|---|
| 16 September | 431 | 312 from Crete |
| 15 September | 300 | 175 from Crete |
| 30 August | 289 | Not tied to a specific event by us |
| 26 August | 244 | Not tied to a specific event by us |
| 1 October | 240 | Not tied to a specific event by us |
The two busiest days of the summer were the Crete storm outages, not the Crete blackout. That is the lesson in how reports work: a blackout that lasts minutes creates a spike, but outages that last hours generate a day of reports. For the days we have not matched to events, we do not guess at causes.
The busiest hours
The peak hour of the day, in Athens time, shifted through the season:
| Month | Busiest hour | Second |
|---|---|---|
| June | 21:00 (111) | 20:00 (75) |
| July | 15:00 (193) | 19:00 (188) |
| August | 16:00 (218) | 18:00 (200) |
| September | 11:00 (259) | 09:00 (209) |
| October (to the 20th) | 09:00 (124) | 22:00 (118) |
July and August peaks are mid-afternoon and early evening, the hours when cooling demand is highest. September's 11:00 peak is largely one event: 116 of those 259 reports are from the Crete fault on 7 September. This is why we avoid saying "outages peak at X o'clock" from a single season of data.
Power, internet and water
Across all of 2026, power makes up 96.9% of reports (10,893), internet 2.0% (224) and water 1.2% (130). The share of internet reports rose from 0.7% in June to 2.7% in September. The share of water reports stayed around 1–2%. Reports that flagged damage were 5.5% overall, and 7.2% in both September and October (see our insurance guide).
What the data cannot show
- Duration. Only 95 reports have a measured start-to-resolved time, so we do not publish restoration times. That is a data limit, not an oversight.
- Cause. We do not know why most outages happened. Where press coverage exists, we say so and link to it.
- Per-capita comparisons. We do not adjust for population or user base, so do not read the counts as a ranking.
- Growth. Month-on-month growth is mostly platform growth.
What you can do with this
- Be ready, especially in August and September. Those were our busiest months. A UPS for your router and PC and a power-cut kit cost far less than a spoiled fridge.
- Check what is happening now on the live map and the outage history.
- Report outages at Outage.gr/report. More reports means better data next season.
- Read the methodology: how we collect and what we do not claim.
All Outage.gr reports (power, internet, water) up to 20 October 2026. October is partial; February starts on the 15th.