Portugal records nine heatwaves on the mainland in 2026
IPMA said nine episodes between February and October brought the year’s heatwave-day total to 98.
Event / data period: 2026-10
Published: · Updated:
Portugal’s Institute for Sea and Atmosphere (IPMA) said in a provisional assessment published October 18 that mainland Portugal had recorded nine heatwaves in 2026. The assessment covering February through October counted 98 heatwave days so far this year, above previous totals of 97 days in 2009 and 91 in 2017.
IPMA described the June 29–July 11 episode as one of the most notable heatwaves since 1981. The source provisionally lists the ninth episode in the northeast as October 10–16. Its text gives October 16 as an expected end, which is not treated here as a confirmed completion date.
Data
Mainland Portugal heatwaves
Annual figures in IPMA’s provisional assessment of October 18.
| 2026, February–October (provisional assessment) | 9 | 98 |
| 2009 | — | 97 |
| 2017 | — | 91 |
Methodology
The source’s provisional mainland totals for February–October 2026 are retained. No exact cutoff day is stated for the 98 days, so an October 16 cutoff is not assigned. The ninth episode’s October 16 end is expected and provisional. Figures for 2009 and 2017 are historical annual comparisons.
Updated:
Subjects and places
Subject proposals
- Weather phenomenaSuggested
- Subject suggested from the title or summary: heatwaveswww.ipma.pt ↗
- EnvironmentSuggested
- Preserved editorial category/topic; broad candidate onlywww.ipma.pt ↗
Geographic references
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- Portugal · Place role: Coverage · Place type: Country or area · Location precision: RegionalEvidence
- Explicit preserved editorial country/region; no city or national centroid inferredwww.ipma.pt ↗