Heat wave in Germany and 28 other countries, 25 April to 5 May 2025

Name: Heat wave in Germany and 28 other countries, 25 April to 5 May 2025
Start: 2025-04-25
End: 2025-05-05
Location: Germany, United Kingdom, France, Sweden, Spain, Ireland, Italy, Norway, Algeria, Netherlands, Switzerland, Czech Republic, Austria, Belgium, Montenegro, Poland, Romania, Denmark, Finland, Greece, Croatia, Hungary, Luxembourg, Libya, Morocco, Malta, Slovenia, Slovakia, Tunisia

Heat wave in Germany and 28 other countries, 25 April to 5 May 2025: 730 records at 399 stations, peak on 2 May 2025. Closed.

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

Key Facts

Heat wave in Germany and 28 other countries, 25 April to 5 May 2025 set or tied 730 station records at 399 stations.
It ran from 25 April 2025 to 5 May 2025 (11 days) and its peak day was 2 May 2025.
Status: closed.
Belle Ile - le Talut set a monthly record high minimum temperature of 16.5 C (61.7 F) on 30 April 2025.
The busiest day was 2 May 2025 with 211 records.
The oldest broken record in the ranked list had stood for 178 years.

Footprint

25 April to 5 May 2025

The area covered by Heat wave in Germany and 28 other countries, 25 April to 5 May 2025 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Germany and 28 other countries, 25 April to 5 May 2025: stations that set records in the event
Station	Type	Value	Date
Belle Ile - le Talut	Record high minimum temperature	16.5 C (61.7 F)	2025-04-30
Wisley	Record high maximum temperature	24.3 C (75.7 F)	2025-04-28
Connaught	Record high minimum temperature	9.6 C (49.3 F)	2025-04-27
Oxford	Record high minimum temperature	12.8 C (55.0 F)	2025-05-02
Rothamsted	Record high maximum temperature	21.6 C (70.9 F)	2025-04-27
Durham	Record high maximum temperature	22.9 C (73.2 F)	2025-04-28
Dublin Phoenix Park	Record high maximum temperature	22.8 C (73.0 F)	2025-04-30
Valentia Observatory	Record high maximum temperature	22.3 C (72.1 F)	2025-04-29
Saentis	Record high minimum temperature	3.4 C (38.1 F)	2025-04-30
Dijon-Longvic	Record high maximum temperature	26.2 C (79.2 F)	2025-05-03
Tiree	Record high minimum temperature	10.1 C (50.2 F)	2025-04-27
Lugano	Record high minimum temperature	15.5 C (59.9 F)	2025-05-03
Wick	Record high minimum temperature	9.4 C (48.9 F)	2025-04-27
Armagh	Record high maximum temperature	23.1 C (73.6 F)	2025-04-29
Preston: Moor Park	Record high maximum temperature	24.9 C (76.8 F)	2025-04-29
Leuchars	Record high maximum temperature	23.5 C (74.3 F)	2025-04-29
Schleswig	Record high maximum temperature	25.4 C (77.7 F)	2025-05-01
Alger-Dar El Beida	Record high minimum temperature	18.7 C (65.7 F)	2025-05-02
Attenkam	Record high minimum temperature	12.8 C (55.0 F)	2025-05-03

Records per Day

Peak day 211

Records set or tied each day from 25 April 2025 to 5 May 2025. The most in one day was 211 on 2 May 2025.

Records per day during Heat wave in Germany and 28 other countries, 25 April to 5 May 2025
Date	Records
2025-04-25	4
2025-04-26	12
2025-04-27	32
2025-04-28	81
2025-04-29	87
2025-04-30	96
2025-05-01	119
2025-05-02	211
2025-05-03	77
2025-05-04	7
2025-05-05	4

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Germany and 28 other countries, 25 April to 5 May 2025 ranked by margin
Leuchars, 04-29	4.3 C (7.7 F)
Wisley, 04-29	3.4 C (6.1 F)
Schleswig, 05-01	3.4 C (6.1 F)
Valentia Observatory, 04-29	2.9 C (5.2 F)
Dublin Phoenix Park, 04-30	2.2 C (4.0 F)
Wisley, 04-28	2.1 C (3.8 F)
Belle Ile - le Talut, 04-30	1.7 C (3.1 F)
Alger-Dar El Beida, 05-02	1.7 C (3.1 F)
Attenkam, 05-03	1.6 C (2.9 F)
Lugano, 05-03	1.5 C (2.7 F)
Connaught, 04-27	1.3 C (2.3 F)
Tiree, 04-27	1.2 C (2.2 F)
Wick, 04-27	1.1 C (2.0 F)
Preston: Moor Park, 04-29	1.0 C (1.8 F)
Oxford, 05-02	0.7 C (1.3 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

500 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 Germany and 28 other countries, 25 April to 5 May 2025
Margin (C)	Years the old record stood
1.7	76
2.1	111
3.4	80
1.3	95
0.7	178
2.2	80
0.5	104
0.7	111
2.9	63
0.2	96
0.2	99
1.5	78
1.2	88
1.7	78
3.4	72
1.6	80
0.5	50
1.1	80
1.0	58
4.3	59
1.2	57
0.5	88
0.6	88
0.8	87
1.3	72
3.9	59
2.5	75
1.3	75
0.9	72
2.6	59
0.5	41
0.5	79
1.4	64
2.5	59
4.7	35
0.7	72
0.8	72
1.2	72
0.5	72
0.8	70
1.8	75
0.5	72
0.5	72
0.9	38
1.4	56
0.9	75
0.2	72
5.2	14
3.3	35
1.8	59
2.6	52
3.2	59
0.8	76
0.5	75
3.6	50
0.8	64
2.1	59
2.5	59
2.7	59
2.4	59
2.2	59
1.8	52
3.0	31
2.7	28
0.6	60
2.4	38
4.6	35
1.6	60
3.7	35
2.2	59
1.0	64
1.1	59
2.2	59
2.5	59
2.0	50
0.8	59
1.0	52
1.3	60
1.2	60
0.3	58
1.1	59
0.3	59
1.2	59
1.9	52
1.6	59
1.4	56
0.2	59
3.5	38
0.9	56
0.3	66
0.1	35
0.4	22
2.3	35
0.5	59
1.0	18
1.8	22
0.2	38
1.1	62
1.1	62
3.4	35
1.7	22
0.6	34
2.9	38
2.9	31
3.6	20
1.2	56
0.1	64
0.8	26
0.1	64
2.1	35
1.9	38
3.7	35
0.3	22
1.8	31
1.3	52
0.8	59
1.2	52
0.3	50
1.2	56
2.4	35
0.4	62
1.0	22
2.0	35
1.8	38
1.0	22
3.2	35
3.4	35
1.0	52
0.3	14
0.8	40
1.4	39
0.8	38
0.5	56
0.3	59
2.3	35
0.8	59
0.4	54
1.6	48
4.9	15
2.2	31
3.5	18
0.4	59
2.8	26
1.3	38
0.3	59
1.3	51
2.4	24
0.8	43
2.5	35
0.3	63
0.5	56
2.2	35
0.7	22
0.1	60
2.0	36
1.2	38
0.3	59
0.9	22
0.1	60
0.9	7
1.3	52
1.0	52
0.7	38
0.2	52
3.2	20
2.6	35
0.4	59
2.0	20
1.4	31
0.1	56
2.7	39
0.2	59
3.1	14
1.6	38
0.7	5
0.4	51
1.5	31
1.8	38
0.1	59
0.9	14
2.2	31
0.3	56
2.5	35
0.5	7
1.7	31
0.9	38
2.6	35
0.4	22
1.2	0
3.8	10
1.6	38
0.3	40
1.8	35
1.6	31
0.9	38
0.7	31
0.7	35
1.8	32
0.2	52
0.8	36

Compared With Other Events

Station records per event

Station records in Heat wave in Germany and 28 other countries, 25 April to 5 May 2025 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 2024	9,869 records
Heat wave in United States, 28 January to 24 February 2026	6,528 records
Heat wave in United States and Mexico, 24 May to 19 June 2020	5,047 records
Heat wave in United States and Mexico, 26 March to 17 April 2021	3,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022	3,626 records
Heat wave in Germany and 28 other countries, 25 April to 5 May 2025 (this event)	730 records

Every Record Set

20 of 730

Every record set or tied during Heat wave in Germany and 28 other countries, 25 April to 5 May 2025, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2025-04-27	Connaught	Record high minimum temperature	9.6 C (49.3 F)	1.3 C (2.3 F)	95	42 of 100 (Notable)
2025-04-27	Rothamsted	Record high maximum temperature	21.6 C (70.9 F)	0.5 C (0.9 F)	104	41 of 100 (Notable)
2025-04-27	Tiree	Record high minimum temperature	10.1 C (50.2 F)	1.2 C (2.2 F)	88	38 of 100 (Notable)
2025-04-27	Wick	Record high minimum temperature	9.4 C (48.9 F)	1.1 C (2.0 F)	80	36 of 100 (Notable)
2025-04-28	Wisley	Record high maximum temperature	24.3 C (75.7 F)	2.1 C (3.8 F)	111	45 of 100 (Notable)
2025-04-28	Durham	Record high maximum temperature	22.9 C (73.2 F)	0.7 C (1.3 F)	111	41 of 100 (Notable)
2025-04-29	Wisley	Record high maximum temperature	26.7 C (80.1 F)	3.4 C (6.1 F)	80	43 of 100 (Notable)
2025-04-29	Valentia Observatory	Record high maximum temperature	22.3 C (72.1 F)	2.9 C (5.2 F)	63	39 of 100 (Notable)
2025-04-29	Armagh	Record high maximum temperature	23.1 C (73.6 F)	0.5 C (0.9 F)	50	36 of 100 (Notable)
2025-04-29	Preston: Moor Park	Record high maximum temperature	24.9 C (76.8 F)	1.0 C (1.8 F)	58	36 of 100 (Notable)
2025-04-29	Leuchars	Record high maximum temperature	23.5 C (74.3 F)	4.3 C (7.7 F)	59	36 of 100 (Notable)
2025-04-30	Belle Ile - le Talut	Record high minimum temperature	16.5 C (61.7 F)	1.7 C (3.1 F)	76	47 of 100 (Notable)
2025-04-30	Dublin Phoenix Park	Record high maximum temperature	22.8 C (73.0 F)	2.2 C (4.0 F)	80	41 of 100 (Notable)
2025-04-30	Saentis	Record high minimum temperature	3.4 C (38.1 F)	0.2 C (0.4 F)	99	39 of 100 (Notable)
2025-05-01	Schleswig	Record high maximum temperature	25.4 C (77.7 F)	3.4 C (6.1 F)	72	36 of 100 (Notable)
2025-05-02	Oxford	Record high minimum temperature	12.8 C (55.0 F)	0.7 C (1.3 F)	178	42 of 100 (Notable)
2025-05-02	Alger-Dar El Beida	Record high minimum temperature	18.7 C (65.7 F)	1.7 C (3.1 F)	78	36 of 100 (Notable)
2025-05-03	Dijon-Longvic	Record high maximum temperature	26.2 C (79.2 F)	0.2 C (0.4 F)	96	39 of 100 (Notable)
2025-05-03	Lugano	Record high minimum temperature	15.5 C (59.9 F)	1.5 C (2.7 F)	78	38 of 100 (Notable)
2025-05-03	Attenkam	Record high minimum temperature	12.8 C (55.0 F)	1.6 C (2.9 F)	80	36 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 730 records the event counts. The counts above use the full total.

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.

Margin (C)	Years the old record stood
1.7	76
2.1	111
3.4	80
1.3	95
0.7	178
2.2	80
0.5	104
0.7	111
2.9	63
0.2	96
0.2	99
1.5	78
1.2	88
1.7	78
3.4	72
1.6	80
0.5	50
1.1	80
1.0	58
4.3	59
1.2	57
0.5	88
0.6	88
0.8	87
1.3	72
3.9	59
2.5	75
1.3	75
0.9	72
2.6	59
0.5	41
0.5	79
1.4	64
2.5	59
4.7	35
0.7	72
0.8	72
1.2	72
0.5	72
0.8	70
1.8	75
0.5	72
0.5	72
0.9	38
1.4	56
0.9	75
0.2	72
5.2	14
3.3	35
1.8	59
2.6	52
3.2	59
0.8	76
0.5	75
3.6	50
0.8	64
2.1	59
2.5	59
2.7	59
2.4	59
2.2	59
1.8	52
3.0	31
2.7	28
0.6	60
2.4	38
4.6	35
1.6	60
3.7	35
2.2	59
1.0	64
1.1	59
2.2	59
2.5	59
2.0	50
0.8	59
1.0	52
1.3	60
1.2	60
0.3	58
1.1	59
0.3	59
1.2	59
1.9	52
1.6	59
1.4	56
0.2	59
3.5	38
0.9	56
0.3	66
0.1	35
0.4	22
2.3	35
0.5	59
1.0	18
1.8	22
0.2	38
1.1	62
1.1	62
3.4	35
1.7	22
0.6	34
2.9	38
2.9	31
3.6	20
1.2	56
0.1	64
0.8	26
0.1	64
2.1	35
1.9	38
3.7	35
0.3	22
1.8	31
1.3	52
0.8	59
1.2	52
0.3	50
1.2	56
2.4	35
0.4	62
1.0	22
2.0	35
1.8	38
1.0	22
3.2	35
3.4	35
1.0	52
0.3	14
0.8	40
1.4	39
0.8	38
0.5	56
0.3	59
2.3	35
0.8	59
0.4	54
1.6	48
4.9	15
2.2	31
3.5	18
0.4	59
2.8	26
1.3	38
0.3	59
1.3	51
2.4	24
0.8	43
2.5	35
0.3	63
0.5	56
2.2	35
0.7	22
0.1	60
2.0	36
1.2	38
0.3	59
0.9	22
0.1	60
0.9	7
1.3	52
1.0	52
0.7	38
0.2	52
3.2	20
2.6	35
0.4	59
2.0	20
1.4	31
0.1	56
2.7	39
0.2	59
3.1	14
1.6	38
0.7	5
0.4	51
1.5	31
1.8	38
0.1	59
0.9	14
2.2	31
0.3	56
2.5	35
0.5	7
1.7	31
0.9	38
2.6	35
0.4	22
1.2	0
3.8	10
1.6	38
0.3	40
1.8	35
1.6	31
0.9	38
0.7	31
0.7	35
1.8	32
0.2	52
0.8	36

Margin (C)	Years the old record stood
1.7	76
2.1	111
3.4	80
1.3	95
0.7	178
2.2	80
0.5	104
0.7	111
2.9	63
0.2	96
0.2	99
1.5	78
1.2	88
1.7	78
3.4	72
1.6	80
0.5	50
1.1	80
1.0	58
4.3	59
1.2	57
0.5	88
0.6	88
0.8	87
1.3	72
3.9	59
2.5	75
1.3	75
0.9	72
2.6	59
0.5	41
0.5	79
1.4	64
2.5	59
4.7	35
0.7	72
0.8	72
1.2	72
0.5	72
0.8	70
1.8	75
0.5	72
0.5	72
0.9	38
1.4	56
0.9	75
0.2	72
5.2	14
3.3	35
1.8	59
2.6	52
3.2	59
0.8	76
0.5	75
3.6	50
0.8	64
2.1	59
2.5	59
2.7	59
2.4	59
2.2	59
1.8	52
3.0	31
2.7	28
0.6	60
2.4	38
4.6	35
1.6	60
3.7	35
2.2	59
1.0	64
1.1	59
2.2	59
2.5	59
2.0	50
0.8	59
1.0	52
1.3	60
1.2	60
0.3	58
1.1	59
0.3	59
1.2	59
1.9	52
1.6	59
1.4	56
0.2	59
3.5	38
0.9	56
0.3	66
0.1	35
0.4	22
2.3	35
0.5	59
1.0	18
1.8	22
0.2	38
1.1	62
1.1	62
3.4	35
1.7	22
0.6	34
2.9	38
2.9	31
3.6	20
1.2	56
0.1	64
0.8	26
0.1	64
2.1	35
1.9	38
3.7	35
0.3	22
1.8	31
1.3	52
0.8	59
1.2	52
0.3	50
1.2	56
2.4	35
0.4	62
1.0	22
2.0	35
1.8	38
1.0	22
3.2	35
3.4	35
1.0	52
0.3	14
0.8	40
1.4	39
0.8	38
0.5	56
0.3	59
2.3	35
0.8	59
0.4	54
1.6	48
4.9	15
2.2	31
3.5	18
0.4	59
2.8	26
1.3	38
0.3	59
1.3	51
2.4	24
0.8	43
2.5	35
0.3	63
0.5	56
2.2	35
0.7	22
0.1	60
2.0	36
1.2	38
0.3	59
0.9	22
0.1	60
0.9	7
1.3	52
1.0	52
0.7	38
0.2	52
3.2	20
2.6	35
0.4	59
2.0	20
1.4	31
0.1	56
2.7	39
0.2	59
3.1	14
1.6	38
0.7	5
0.4	51
1.5	31
1.8	38
0.1	59
0.9	14
2.2	31
0.3	56
2.5	35
0.5	7
1.7	31
0.9	38
2.6	35
0.4	22
1.2	0
3.8	10
1.6	38
0.3	40
1.8	35
1.6	31
0.9	38
0.7	31
0.7	35
1.8	32
0.2	52
0.8	36