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Data as of 2026-10-12
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Built 2026-10-14 (14 October 2026)

Heat wave in Spain and Portugal, 12 to 16 September 2026

Heat wave in Spain and Portugal, 12 to 16 September 2026: 18 records at 14 stations, peak on 13 September 2026. Closed.

Data as of . Last revised (2026-10-12).

Key Facts

  • Heat wave in Spain and Portugal, 12 to 16 September 2026 set or tied 18 station records at 14 stations.
  • It ran from 12 September 2026 to 16 September 2026 (5 days) and its peak day was 13 September 2026.
  • Status: closed.
  • Navacerrada set a daily record high minimum temperature of 16.3 C (61.3 F) on 14 September 2026 (provisional).
  • The busiest day was 13 September 2026 with 6 records.
  • The oldest broken record in the ranked list had stood for 69 years.

Footprint

12 to 16 September 2026
Footprint of Heat wave in Spain and Portugal, 12 to 16 September 2026 The area covered by Heat wave in Spain and Portugal, 12 to 16 September 2026 is outlined, with 14 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Spain and Portugal, 12 to 16 September 2026 is outlined, with 14 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Spain and Portugal, 12 to 16 September 2026: stations that set records in the event
StationTypeValueDate
NavacerradaRecord high minimum temperature16.3 C (61.3 F)2026-09-14
Rota NASRecord high minimum temperature23.0 C (73.4 F)2026-09-13
PortoRecord high maximum temperature34.6 C (94.3 F)2026-09-13
Tortosa - Observatorio del EbrRecord high maximum temperature35.3 C (95.5 F)2026-09-14
ZamoraRecord high maximum temperature34.9 C (94.8 F)2026-09-15
PonferradaRecord high maximum temperature35.3 C (95.5 F)2026-09-14
GuadalajaraRecord high minimum temperature17.1 C (62.8 F)2026-09-16
CeutaRecord high minimum temperature22.8 C (73.0 F)2026-09-13
OurenseRecord high maximum temperature37.0 C (98.6 F)2026-09-13
Lugo/RozasRecord high maximum temperature35.0 C (95.0 F)2026-09-14
SegoviaRecord high maximum temperature32.8 C (91.0 F)2026-09-15
PontevedraRecord high maximum temperature33.9 C (93.0 F)2026-09-13
JaenRecord high maximum temperature34.3 C (93.7 F)2026-09-13
TeruelRecord high maximum temperature34.1 C (93.4 F)2026-09-15
CaceresRecord high maximum temperature37.0 C (98.6 F)2026-09-15

Records per Day

Peak day 6
Records per day during Heat wave in Spain and Portugal, 12 to 16 September 2026 Records set or tied each day from 12 September 2026 to 16 September 2026. The most in one day was 6 on 13 September 2026. 0 2 3 5 6 09-1209-1309-1409-1509-16
Records set or tied each day from 12 September 2026 to 16 September 2026. The most in one day was 6 on 13 September 2026.
Records per day during Heat wave in Spain and Portugal, 12 to 16 September 2026
DateRecords
2026-09-121
2026-09-136
2026-09-145
2026-09-155
2026-09-161

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Spain and Portugal, 12 to 16 September 2026 ranked by margin
Ponferrada, 09-141.5 C (2.7 F)
Porto, 09-131.4 C (2.5 F)
Lugo/Rozas, 09-141.3 C (2.3 F)
Tortosa - Observatorio del Ebr, 09-150.9 C (1.6 F)
Rota NAS, 09-130.8 C (1.4 F)
Zamora, 09-150.7 C (1.3 F)
Teruel, 09-150.5 C (0.9 F)
Tortosa - Observatorio del Ebr, 09-140.4 C (0.7 F)
Segovia, 09-150.4 C (0.7 F)
Navacerrada, 09-140.3 C (0.5 F)
Navacerrada, 09-150.2 C (0.4 F)
Ceuta, 09-130.2 C (0.4 F)
Ourense, 09-130.2 C (0.4 F)
Ceuta, 09-120.2 C (0.4 F)
Guadalajara, 09-160.1 C (0.2 F)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Heat wave in Spain and Portugal, 12 to 16 September 2026 18 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right. 0 20 40 60 80 0.00.40.81.11.5 Margin (C) Years the old record stood
18 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.
Margin against age of the broken record in Heat wave in Spain and Portugal, 12 to 16 September 2026
Margin (C)Years the old record stood
0.369
0.861
1.440
0.439
0.739
1.516
0.95
0.213
0.124
0.215
1.316
0.223
0.29
0.416
0.17
0.18
0.13
0.50

Compared With Other Events

Station records per event
Station records in Heat wave in Spain and Portugal, 12 to 16 September 2026 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 20249,869 records
Heat wave in United States, 28 January to 24 February 20266,528 records
Heat wave in United States and Mexico, 24 May to 19 June 20205,047 records
Heat wave in United States and Mexico, 26 March to 17 April 20213,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 20223,626 records
Heat wave in Spain and Portugal, 12 to 16 September 2026 (this event)18 records

Every Record Set

20 of 18
Every record set or tied during Heat wave in Spain and Portugal, 12 to 16 September 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-09-12CeutaRecord high minimum temperature (provisional)22.7 C (72.9 F)0.2 C (0.4 F)99 of 100 (Routine)
2026-09-13Rota NASRecord high minimum temperature (provisional)23.0 C (73.4 F)0.8 C (1.4 F)6126 of 100 (Routine)
2026-09-13PortoRecord high maximum temperature (provisional)34.6 C (94.3 F)1.4 C (2.5 F)4023 of 100 (Routine)
2026-09-13CeutaRecord high minimum temperature (provisional)22.8 C (73.0 F)0.2 C (0.4 F)1511 of 100 (Routine)
2026-09-13OurenseRecord high maximum temperature (provisional)37.0 C (98.6 F)0.2 C (0.4 F)2311 of 100 (Routine)
2026-09-13PontevedraRecord high maximum temperature (provisional)33.9 C (93.0 F)0.1 C (0.2 F)77 of 100 (Routine)
2026-09-13JaenRecord high maximum temperature (provisional)34.3 C (93.7 F)0.1 C (0.2 F)86 of 100 (Routine)
2026-09-14NavacerradaRecord high minimum temperature (provisional)16.3 C (61.3 F)0.3 C (0.5 F)6928 of 100 (Routine)
2026-09-14Tortosa - Observatorio del EbrRecord high maximum temperature (provisional)35.3 C (95.5 F)0.4 C (0.7 F)3922 of 100 (Routine)
2026-09-14PonferradaRecord high maximum temperature (provisional)35.3 C (95.5 F)1.5 C (2.7 F)1614 of 100 (Routine)
2026-09-14Lugo/RozasRecord high maximum temperature (provisional)35.0 C (95.0 F)1.3 C (2.3 F)1611 of 100 (Routine)
2026-09-14PontevedraRecord high maximum temperature (provisional)31.3 C (88.3 F)0.1 C (0.2 F)35 of 100 (Routine)
2026-09-14OurenseRecord high maximum temperature (tie) (provisional)37.3 C (99.1 F)tie162 of 100 (Routine)
2026-09-15ZamoraRecord high maximum temperature (provisional)34.9 C (94.8 F)0.7 C (1.3 F)3921 of 100 (Routine)
2026-09-15Tortosa - Observatorio del EbrRecord high maximum temperature (provisional)35.4 C (95.7 F)0.9 C (1.6 F)513 of 100 (Routine)
2026-09-15NavacerradaRecord high maximum temperature (provisional)26.6 C (79.9 F)0.2 C (0.4 F)1312 of 100 (Routine)
2026-09-15SegoviaRecord high maximum temperature (provisional)32.8 C (91.0 F)0.4 C (0.7 F)169 of 100 (Routine)
2026-09-15TeruelRecord high maximum temperature (provisional)34.1 C (93.4 F)0.5 C (0.9 F)05 of 100 (Routine)
2026-09-15CaceresRecord high maximum temperature (tie) (provisional)37.0 C (98.6 F)tie444 of 100 (Routine)
2026-09-16GuadalajaraRecord high minimum temperature (provisional)17.1 C (62.8 F)0.1 C (0.2 F)2412 of 100 (Routine)

Download the Data

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.