Heat wave in Russia and 4 other countries, 23 May to 4 June 2025

Name: Heat wave in Russia and 4 other countries, 23 May to 4 June 2025
Start: 2025-05-23
End: 2025-06-04
Location: Russia, Finland, Norway, Sweden, Latvia

Heat wave in Russia and 4 other countries, 23 May to 4 June 2025: 138 records at 68 stations, peak on 29 May 2025. Closed.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Key Facts

Heat wave in Russia and 4 other countries, 23 May to 4 June 2025 set or tied 138 station records at 68 stations.
It ran from 23 May 2025 to 4 June 2025 (13 days) and its peak day was 29 May 2025.
Status: closed.
Troicko-Pecherskoe set a monthly record high minimum temperature of 17.5 C (63.5 F) on 30 May 2025.
The busiest day was 29 May 2025 with 26 records.
The oldest broken record in the ranked list had stood for 104 years.

Footprint

23 May to 4 June 2025

The area covered by Heat wave in Russia and 4 other countries, 23 May to 4 June 2025 is outlined, with 14 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Russia and 4 other countries, 23 May to 4 June 2025: stations that set records in the event
Station	Type	Value	Date
Troicko-Pecherskoe	Record high minimum temperature	17.5 C (63.5 F)	2025-05-30
Teriberka	Record high minimum temperature	9.8 C (49.6 F)	2025-05-28
Kargopol	Record high minimum temperature	16.0 C (60.8 F)	2025-05-26
Ust Tzilma	Record high maximum temperature	29.3 C (84.7 F)	2025-05-30
Cherdyn'	Record high minimum temperature	18.9 C (66.0 F)	2025-06-01
Surgut	Record high minimum temperature	15.1 C (59.2 F)	2025-06-04
Serov	Record high minimum temperature	14.7 C (58.5 F)	2025-05-30
Ust-USA	Record high maximum temperature	24.2 C (75.6 F)	2025-05-31
Lovozero	Record high minimum temperature	9.7 C (49.5 F)	2025-05-26
Velikij_Ustjug	Record high maximum temperature	29.5 C (85.1 F)	2025-05-29
Vittangi	Record high minimum temperature	8.5 C (47.3 F)	2025-05-27
Kotlas	Record high maximum temperature	29.9 C (85.8 F)	2025-05-29
Verhnjaja Tojma	Record high maximum temperature	29.1 C (84.4 F)	2025-05-30
Njaksimvol	Record high maximum temperature	29.6 C (85.3 F)	2025-05-30

Records per Day

Peak day 26

Records set or tied each day from 23 May 2025 to 4 June 2025. The most in one day was 26 on 29 May 2025.

Records per day during Heat wave in Russia and 4 other countries, 23 May to 4 June 2025
Date	Records
2025-05-23	1
2025-05-24	1
2025-05-25	12
2025-05-26	18
2025-05-27	21
2025-05-28	5
2025-05-29	26
2025-05-30	21
2025-05-31	16
2025-06-01	8
2025-06-02	4
2025-06-03	3
2025-06-04	2

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Russia and 4 other countries, 23 May to 4 June 2025 ranked by margin
Lovozero, 05-26	4.5 C (8.1 F)
Serov, 05-30	2.5 C (4.5 F)
Ust Tzilma, 05-30	2.3 C (4.1 F)
Velikij_Ustjug, 05-29	1.9 C (3.4 F)
Teriberka, 05-26	1.5 C (2.7 F)
Cherdyn', 06-01	1.4 C (2.5 F)
Serov, 05-31	1.4 C (2.5 F)
Teriberka, 05-28	1.3 C (2.3 F)
Cherdyn', 05-30	1.3 C (2.3 F)
Verhnjaja Tojma, 05-30	1.3 C (2.3 F)
Kotlas, 05-29	1.1 C (2.0 F)
Kargopol, 05-26	0.9 C (1.6 F)
Troicko-Pecherskoe, 05-30	0.7 C (1.3 F)
Serov, 06-01	0.6 C (1.1 F)
Troicko-Pecherskoe, 05-28	0.5 C (0.9 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

138 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 Russia and 4 other countries, 23 May to 4 June 2025
Margin (C)	Years the old record stood
0.7	82
1.3	104
0.9	98
2.3	87
0.5	87
1.4	83
0.4	86
1.5	62
0.1	76
2.5	60
4.5	40
0.6	72
1.3	59
1.4	63
1.9	59
1.3	64
0.2	59
1.1	59
0.5	62
0.5	59
1.1	46
1.3	46
3.1	46
1.1	48
1.4	40
0.2	59
3.4	34
1.4	48
1.3	46
1.4	48
3.2	36
0.1	46
0.3	46
2.6	40
1.3	46
4.1	32
0.6	15
1.1	34
1.5	44
1.0	46
0.7	46
1.8	46
0.6	46
2.1	34
0.9	2
1.0	42
2.4	24
1.2	46
0.3	46
0.9	34
1.8	34
1.8	34
0.3	46
0.6	34
0.7	34
0.5	46
0.7	46
0.5	46
0.2	34
1.6	34
0.4	34
1.3	34
0.6	24
1.8	30
0.9	34
0.7	34
2.3	10
0.3	40
0.6	30
1.2	24
1.1	30
0.8	30
3.9	10
0.4	36
0.2	30
3.3	8
2.0	8
0.6	34
0.8	30
0.6	30
2.5	4
1.1	20
0.9	16
2.7	10
0.1	34
3.1	2
0.9	22
0.7	10
0.6	24
0.8	26
0.4	24
1.5	15
1.4	8
0.8	18
0.8	10
2.2	2
1.4	4
1.6	10
2.8	2
0.5	20
0.2	11
2.3	8
0.8	10
0.2	20
0.6	10
2.7	12
0.5	20
0.2	22
0.1	8
0.1	18
2.4	10
1.9	10
0.2	10
0.6	2
1.3	10
2.3	2
1.1	10
0.7	10
0.1	18
0.5	22
0.4	0
0.5	10
0.9	10
0.3	10
1.0	10
0.6	10
0.4	8
0.1	10
0.1	10
0.2	7
0.5	12
0.7	2
1.1	2
0.2	0
0.3	2
1.6	0
0.2	3
0.4	4

Compared With Other Events

Station records per event

Station records in Heat wave in Russia and 4 other countries, 23 May to 4 June 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 Russia and 4 other countries, 23 May to 4 June 2025 (this event)	138 records

Every Record Set

20 of 138

Every record set or tied during Heat wave in Russia and 4 other countries, 23 May to 4 June 2025, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2025-05-26	Kargopol	Record high minimum temperature	16.0 C (60.8 F)	0.9 C (1.6 F)	98	40 of 100 (Notable)
2025-05-26	Teriberka	Record high minimum temperature	9.1 C (48.4 F)	1.5 C (2.7 F)	62	32 of 100 (Routine)
2025-05-26	Lovozero	Record high minimum temperature	9.7 C (49.5 F)	4.5 C (8.1 F)	40	31 of 100 (Routine)
2025-05-27	Vittangi	Record high minimum temperature	8.5 C (47.3 F)	0.5 C (0.9 F)	62	27 of 100 (Routine)
2025-05-28	Teriberka	Record high minimum temperature	9.8 C (49.6 F)	1.3 C (2.3 F)	104	43 of 100 (Notable)
2025-05-28	Troicko-Pecherskoe	Record high minimum temperature	14.3 C (57.7 F)	0.5 C (0.9 F)	87	37 of 100 (Notable)
2025-05-29	Velikij_Ustjug	Record high maximum temperature	29.5 C (85.1 F)	1.9 C (3.4 F)	59	28 of 100 (Routine)
2025-05-29	Kargopol	Record high maximum temperature	27.4 C (81.3 F)	0.2 C (0.4 F)	59	27 of 100 (Routine)
2025-05-29	Kotlas	Record high maximum temperature	29.9 C (85.8 F)	1.1 C (2.0 F)	59	27 of 100 (Routine)
2025-05-30	Troicko-Pecherskoe	Record high minimum temperature	17.5 C (63.5 F)	0.7 C (1.3 F)	82	45 of 100 (Notable)
2025-05-30	Ust Tzilma	Record high maximum temperature	29.3 C (84.7 F)	2.3 C (4.1 F)	87	39 of 100 (Notable)
2025-05-30	Serov	Record high minimum temperature	14.7 C (58.5 F)	2.5 C (4.5 F)	60	32 of 100 (Routine)
2025-05-30	Cherdyn'	Record high minimum temperature	18.3 C (64.9 F)	1.3 C (2.3 F)	59	29 of 100 (Routine)
2025-05-30	Verhnjaja Tojma	Record high maximum temperature	29.1 C (84.4 F)	1.3 C (2.3 F)	64	27 of 100 (Routine)
2025-05-30	Njaksimvol	Record high maximum temperature	29.6 C (85.3 F)	0.5 C (0.9 F)	59	26 of 100 (Routine)
2025-05-31	Ust-USA	Record high maximum temperature	24.2 C (75.6 F)	0.1 C (0.2 F)	76	32 of 100 (Routine)
2025-05-31	Serov	Record high minimum temperature	15.3 C (59.5 F)	1.4 C (2.5 F)	63	29 of 100 (Routine)
2025-06-01	Cherdyn'	Record high minimum temperature	18.9 C (66.0 F)	1.4 C (2.5 F)	83	37 of 100 (Notable)
2025-06-01	Serov	Record high maximum temperature	31.7 C (89.1 F)	0.6 C (1.1 F)	72	31 of 100 (Routine)
2025-06-04	Surgut	Record high minimum temperature	15.1 C (59.2 F)	0.4 C (0.7 F)	86	35 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 138 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 2026-10-17. 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
0.7	82
1.3	104
0.9	98
2.3	87
0.5	87
1.4	83
0.4	86
1.5	62
0.1	76
2.5	60
4.5	40
0.6	72
1.3	59
1.4	63
1.9	59
1.3	64
0.2	59
1.1	59
0.5	62
0.5	59
1.1	46
1.3	46
3.1	46
1.1	48
1.4	40
0.2	59
3.4	34
1.4	48
1.3	46
1.4	48
3.2	36
0.1	46
0.3	46
2.6	40
1.3	46
4.1	32
0.6	15
1.1	34
1.5	44
1.0	46
0.7	46
1.8	46
0.6	46
2.1	34
0.9	2
1.0	42
2.4	24
1.2	46
0.3	46
0.9	34
1.8	34
1.8	34
0.3	46
0.6	34
0.7	34
0.5	46
0.7	46
0.5	46
0.2	34
1.6	34
0.4	34
1.3	34
0.6	24
1.8	30
0.9	34
0.7	34
2.3	10
0.3	40
0.6	30
1.2	24
1.1	30
0.8	30
3.9	10
0.4	36
0.2	30
3.3	8
2.0	8
0.6	34
0.8	30
0.6	30
2.5	4
1.1	20
0.9	16
2.7	10
0.1	34
3.1	2
0.9	22
0.7	10
0.6	24
0.8	26
0.4	24
1.5	15
1.4	8
0.8	18
0.8	10
2.2	2
1.4	4
1.6	10
2.8	2
0.5	20
0.2	11
2.3	8
0.8	10
0.2	20
0.6	10
2.7	12
0.5	20
0.2	22
0.1	8
0.1	18
2.4	10
1.9	10
0.2	10
0.6	2
1.3	10
2.3	2
1.1	10
0.7	10
0.1	18
0.5	22
0.4	0
0.5	10
0.9	10
0.3	10
1.0	10
0.6	10
0.4	8
0.1	10
0.1	10
0.2	7
0.5	12
0.7	2
1.1	2
0.2	0
0.3	2
1.6	0
0.2	3
0.4	4

Margin (C)	Years the old record stood
0.7	82
1.3	104
0.9	98
2.3	87
0.5	87
1.4	83
0.4	86
1.5	62
0.1	76
2.5	60
4.5	40
0.6	72
1.3	59
1.4	63
1.9	59
1.3	64
0.2	59
1.1	59
0.5	62
0.5	59
1.1	46
1.3	46
3.1	46
1.1	48
1.4	40
0.2	59
3.4	34
1.4	48
1.3	46
1.4	48
3.2	36
0.1	46
0.3	46
2.6	40
1.3	46
4.1	32
0.6	15
1.1	34
1.5	44
1.0	46
0.7	46
1.8	46
0.6	46
2.1	34
0.9	2
1.0	42
2.4	24
1.2	46
0.3	46
0.9	34
1.8	34
1.8	34
0.3	46
0.6	34
0.7	34
0.5	46
0.7	46
0.5	46
0.2	34
1.6	34
0.4	34
1.3	34
0.6	24
1.8	30
0.9	34
0.7	34
2.3	10
0.3	40
0.6	30
1.2	24
1.1	30
0.8	30
3.9	10
0.4	36
0.2	30
3.3	8
2.0	8
0.6	34
0.8	30
0.6	30
2.5	4
1.1	20
0.9	16
2.7	10
0.1	34
3.1	2
0.9	22
0.7	10
0.6	24
0.8	26
0.4	24
1.5	15
1.4	8
0.8	18
0.8	10
2.2	2
1.4	4
1.6	10
2.8	2
0.5	20
0.2	11
2.3	8
0.8	10
0.2	20
0.6	10
2.7	12
0.5	20
0.2	22
0.1	8
0.1	18
2.4	10
1.9	10
0.2	10
0.6	2
1.3	10
2.3	2
1.1	10
0.7	10
0.1	18
0.5	22
0.4	0
0.5	10
0.9	10
0.3	10
1.0	10
0.6	10
0.4	8
0.1	10
0.1	10
0.2	7
0.5	12
0.7	2
1.1	2
0.2	0
0.3	2
1.6	0
0.2	3
0.4	4