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Last Full Update: 17 Sep 2026, 04:30 BSTUpdated: 17 Sep 26 04:30
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Detailed Temperature Data

Current/Latest conditions

Temperature
13.4 °C
Temperature Trend / hr
-0.2 °C
Feels-like
14.4 °C
Night Minimum (21-09)
13.4 °C
Day Maximum (09-21)
24hr Average
16.2 °C
Daily Air Frost Hours
0 hrs
Monthly Air Frosts
0 days
Annual Air Frosts
8 days
Today's Low
13.4 °C @ 04:11  (+2.0)
Today's High
15.3 °C @ 00:06  (-3.4)
Today's Mean
14.4 °C  (-0.7)
Yesterday's Low
12.1 °C @ 06:58  (+0.6)
Yesterday's High
19.8 °C @ 16:12  (+0.9)
Yesterday's Mean
16.1 °C  (+0.9)
Measure

Averages, Extremes, and Records

Start year
188119502009

Recent

Temperature 7-day Sep 31-day Year 365-day
Lowest
Min		 12.1 °C
(+0.6)
Yesterday		 10.7 °C
(-1.5)
9th		 10.3 °C
(-3.4)
23rd		 -4.0 °C
(-7.1)
6th Jan		 -4.0 °C
(-7.1)
6th Jan
Highest
Max		 24.9 °C
(+5.7)
14th		 27.2 °C
(+6.5)
6th		 27.2 °C
(+6.5)
6th		 35.8 °C
(+14.0)
26th Jun		 35.8 °C
(+14.0)
26th Jun
Highest
Min		 17.8 °C
(+6.0)
13th		 18.8 °C
(+6.1)
3rd		 18.8 °C
(+5.4)
27th		 21.3 °C
(+7.5)
9th Jul		 21.3 °C
(+7.5)
9th Jul
Lowest
Max		 15.3 °C
(-3.4)
Today		 15.3 °C
(-3.4)
Today		 15.3 °C
(-3.4)
Today		 1.6 °C
(-6.2)
5th Jan		 1.6 °C
(-6.2)
5th Jan
Coldest
Day		 14.4 °C
(-0.7)
Today		 14.4 °C
(-0.7)
Today		 14.4 °C
(-0.7)
Today		 -0.8 °C
(-6.3)
5th Jan		 -0.8 °C
(-6.3)
5th Jan
Warmest
Day		 20.6 °C
(+5.1)
14th		 21.7 °C
(+4.8)
3rd		 21.8 °C
(+3.6)
18th		 29.1 °C
(+11.8)
26th Jun		 29.1 °C
(+11.8)
26th Jun
Averages          
Mean 17.9 °C
(+2.5)		 18.0 °C
(+1.9)		 18.5 °C
(+1.7)		 14.5 °C
(+2.2)		 13.3 °C
(+1.9)
Mean
Minimum		 14.9 °C
(+3.2)		 14.3 °C
(+2.2)		 14.7 °C
(+1.9)		 10.0 °C
(+1.5)		 9.3 °C
(+1.4)
Mean
Maximum		 21.4 °C
(+2.1)		 21.9 °C
(+1.8)		 22.8 °C
(+1.9)		 19.0 °C
(+2.9)		 17.2 °C
(+2.3)

Long-term record (1950-2026)

Temperature Overall Sep (all) 17th Sep
Lowest
Min		 -9.3 °C
(-12.3)
12th Jan 1987*		 1.7 °C
(-9.4)
Day 19, 1952*		 5.0 °C
(-6.4)
2022
Highest
Max		 39.1 °C
(+15.8)
19 Jul 2022		 32.0 °C
(+12.8)
Day 13, 2016		 27.4 °C
(+8.7)
2003*
Highest
Min		 21.9 °C
(+7.5)
10th Aug 2003*		 19.3 °C
(+7.0)
Day 6, 2016		 17.3 °C
(+5.9)
2018
Lowest
Max		 -6.8 °C
(-14.6)
12th Jan 1987*		 9.7 °C
(-7.6)
Day 27, 1993*		 12.4 °C
(-6.3)
1986*
Coldest
Day		 -8.1 °C
(-13.5)
12th Jan 1987*		 7.0 °C
(-7.6)
Day 19, 1952*		 9.8 °C
(-5.2)
1962*
Warmest
Day		 30.1 °C
(+11.2)
19 Jul 2022		 24.9 °C
(+8.8)
Day 9, 2023		 20.3 °C
(+5.3)
2018
Averages      
Mean 10.9 °C
(-0.5)		 15.0 °C
(-0.3)		 14.4 °C
(-0.6)
Mean
Minimum		 7.3 °C
(-0.6)		 11.1 °C
(-0.4)		 11.0 °C
(-0.4)
Mean
Maximum		 14.4 °C
(-0.4)		 18.8 °C
(-0.3)		 18.0 °C
(-0.7)

Record Period Averages

Measure 7-day Monthly Sep 31-day Annual 365-day
Coldest -3.8 °C
17th Jan 1987*		 -1.6 °C
Jan 1963*		 11.8 °C
Sep 1952*		 -1.9 °C
6th Feb 1963*		 9.0 °C
1963*		 8.3 °C
25th Feb 1963*
Warmest 26.2 °C
12th Aug 2003*		 22.4 °C
Jul 2026		 18.6 °C
Sep 2023		 23.4 °C
17 Jul 2026		 14.5 °C
2026		 13.3 °C
Yesterday
Lowest
Mean
Daily-Min		 -6.7 °C
26th Jan 1963*		 -3.9 °C
Jan 1963*		 8.0 °C
Sep 1952*		 -4.1 °C
6th Feb 1963*		 5.6 °C
1963*		 5.0 °C
3rd Mar 1963*
Highest
Mean
Daily-Min		 19.3 °C
28 Jun 2026		 16.6 °C
Jul 2006*		 14.5 °C
Sep 2006*		 17.2 °C
16 Jul 2026		 10.0 °C
2026		 9.3 °C
Today
Lowest
Mean
Daily-Max		 -2.0 °C
17th Jan 1987*		 0.7 °C
Jan 1963*		 15.6 °C
Sep 1952*		 0.3 °C
24th Jan 1963*		 12.5 °C
1963*		 11.6 °C
24th Feb 1963*
Highest
Mean
Daily-Max		 33.5 °C
12th Aug 2003*		 28.6 °C
Jul 2026		 23.2 °C
Sep 2023		 29.6 °C
17 Jul 2026		 19.0 °C
2026		 17.3 °C
Yesterday

Current year vs last year daily trends for Temperature

This year min/max daily trends in detail for Temperature

Past Year Monthly Averages and Extremes (September 2025 - September 2026)

Month Lowest
Min		 Highest
Max		 Highest
Min		 Lowest
Max		 Coldest
Day		 Warmest
Day		 Mean Mean
Minimum		 Mean
Maximum
Sep 2025 3.9 °C
(-7.0)
23rd		 26.8 °C
(+8.4)
19th		 16.4 °C
(+5.1)
18th		 15.4 °C
(-2.1)
26th		 11.0 °C
(-3.3)
23rd		 20.0 °C
(+5.2)
19th		 15.1 °C
(-0.2)		 11.0 °C
(-0.5)		 19.6 °C
(+0.5)
Oct 2025 3.9 °C
(-3.8)
26th		 20.1 °C
(+3.9)
6th		 14.1 °C
(+4.2)
3rd		 11.0 °C
(-2.5)
26th		 7.8 °C
(-2.8)
26th		 16.0 °C
(+2.8)
3rd		 12.4 °C
(+0.7)		 9.6 °C
(+1.0)		 15.1 °C
(+0.3)
Nov 2025 -1.3 °C
(-6.1)
20th		 17.3 °C
(+5.6)
6th		 14.7 °C
(+8.1)
5th		 3.3 °C
(-7.0)
20th		 1.3 °C
(-6.3)
20th		 15.8 °C
(+6.5)
5th		 9.5 °C
(+1.4)		 6.7 °C
(+1.2)		 11.6 °C
(+0.9)
Dec 2025 -0.8 °C
(-4.1)
31st		 14.3 °C
(+5.8)
9th		 11.4 °C
(+7.6)
9th		 3.1 °C
(-4.7)
31st		 1.1 °C
(-4.5)
31st		 12.9 °C
(+6.7)
9th		 7.8 °C
(+1.9)		 5.4 °C
(+1.8)		 9.9 °C
(+1.7)
Jan 2026 -4.0 °C
(-7.1)
6th		 11.2 °C
(+3.4)
18th		 9.1 °C
(+6.1)
12th		 1.6 °C
(-6.2)
5th		 -0.8 °C
(-6.3)
5th		 10.1 °C
(+4.7)
12th		 5.4 °C
(+0.0)		 3.0 °C
(-0.0)		 7.8 °C
(-0.0)
Feb 2026 -0.3 °C
(-3.0)
14th		 17.3 °C
(+8.4)
25th		 10.8 °C
(+7.7)
24th		 5.6 °C
(-2.6)
18th		 2.9 °C
(-2.5)
14th		 12.7 °C
(+6.6)
25th		 8.1 °C
(+2.5)		 6.2 °C
(+3.2)		 10.3 °C
(+2.1)
Mar 2026 1.3 °C
(-3.5)
22nd		 18.5 °C
(+7.5)
18th		 8.7 °C
(+5.3)
2nd		 8.9 °C
(-1.2)
7th		 5.6 °C
(-1.9)
14th		 12.1 °C
(+3.1)
31st		 9.0 °C
(+1.4)		 5.3 °C
(+1.0)		 12.9 °C
(+2.0)
Apr 2026 1.4 °C
(-4.2)
6th		 26.1 °C
(+12.4)
8th		 11.3 °C
(+5.3)
17th		 12.2 °C
(-0.8)
2nd		 9.0 °C
(-0.2)
2nd		 16.8 °C
(+7.1)
8th		 11.8 °C
(+1.7)		 6.5 °C
(+0.5)		 17.1 °C
(+2.8)
May 2026 1.0 °C
(-7.5)
12th		 35.2 °C
(+16.4)
26th		 18.2 °C
(+8.3)
23rd		 12.3 °C
(-5.2)
14th		 7.5 °C
(-5.3)
11th		 27.0 °C
(+12.4)
26th		 16.1 °C
(+2.7)		 10.5 °C
(+1.5)		 21.3 °C
(+3.5)
Jun 2026 8.9 °C
(-2.6)
9th		 35.8 °C
(+14.0)
26th		 21.0 °C
(+8.2)
26th		 16.2 °C
(-4.4)
11th		 12.5 °C
(-3.6)
11th		 29.1 °C
(+11.8)
26th		 19.5 °C
(+3.0)		 14.8 °C
(+2.8)		 24.6 °C
(+3.7)
Jul 2026 9.6 °C
(-5.0)
20th		 34.8 °C
(+11.9)
9th		 21.3 °C
(+7.5)
9th		 23.3 °C
(+0.0)
21st		 17.8 °C
(-1.1)
19th		 28.7 °C
(+10.3)
9th		 22.4 °C
(+3.8)		 15.9 °C
(+1.7)		 28.6 °C
(+5.6)
Aug 2026 9.9 °C
(-4.5)
7th		 35.8 °C
(+13.1)
13th		 19.8 °C
(+5.5)
15th		 20.8 °C
(-0.8)
29th		 17.1 °C
(-1.0)
21st		 27.5 °C
(+9.0)
14th		 21.0 °C
(+2.7)		 15.4 °C
(+1.3)		 26.7 °C
(+4.2)
Sep 2026 10.7 °C
(-1.5)
9th		 27.2 °C
(+6.5)
6th		 18.8 °C
(+6.1)
3rd		 15.3 °C
(-3.4)
17th		 14.4 °C
(-0.7)
17th		 21.7 °C
(+4.8)
3rd		 18.0 °C
(+2.7)		 14.3 °C
(+2.8)		 21.9 °C
(+2.8)

View daily tables of min / max / mean Temperature data for the past year
View monthly tables of min / max / mean Temperature data for all months in the station history.

Past Year Seasonal Averages

Season Daily Min Daily Max Mean
Winter 25/26 4.8 °C (+1.6 °C)
 9.3 °C (+1.2 °C)
 7.1 °C (+1.5 °C)
Spring 2026 7.4 °C (+1.0 °C)
 17.1 °C (+2.8 °C)
 12.3 °C (+1.9 °C)
Summer 2026 15.3 °C (+1.9 °C)
 26.6 °C (+4.5 °C)
 21.0 °C (+3.2 °C)
Autumn 2025 9.1 °C (+0.6 °C)
 15.4 °C (+0.6 °C)
 12.3 °C (+0.6 °C)

Past 24hrs and past 12 months trends for Temperature

Last 12 months: Mean Temperature

Measure
Aggregation
Overlay

View more Temperature charts

Ranked Historical Temperature Data

Warmest Days

Rank Daily Low Daily High Daily Mean
1 21.9 °C
10th Aug 2003*		 39.1 °C
19 Jul 2022		 30.1 °C
19 Jul 2022
2 21.3 °C
09 Jul 2026		 37.8 °C
10th Aug 2003*		 29.8 °C
10th Aug 2003*
3 21.3 °C
10 Jul 2026		 36.8 °C
25 Jul 2019		 29.1 °C
26 Jun 2026
4 21.1 °C
12 Aug 2020		 36.8 °C
18 Jul 2022		 28.7 °C
09 Jul 2026
5 21.1 °C
19 Jul 2022		 36.2 °C
31 Jul 2020		 28.6 °C
24 Jun 2026
6 21.0 °C
26 Jun 2026		 35.8 °C
26 Jun 2026		 28.4 °C
25 Jul 2019
7 20.8 °C
01 Jul 2025		 35.8 °C
13 Aug 2026		 28.0 °C
6th Aug 2003*
8 20.6 °C
27 Jun 2026		 35.7 °C
24 Jun 2026		 27.6 °C
01 Jul 2025
9 20.5 °C
26th Jul 2006*		 35.6 °C
6th Aug 2003*		 27.5 °C
14 Aug 2026
10 20.4 °C
24 Jun 2026		 35.5 °C
9th Aug 2003*		 27.2 °C
01 Jul 2015

Coldest Days

Rank Daily Low Daily High Daily Mean
1 -9.3 °C
12th Jan 1987*		 -6.8 °C
12th Jan 1987*		 -8.1 °C
12th Jan 1987*
2 -9.3 °C
13th Jan 1987*		 -4.7 °C
1st Feb 1956*		 -6.7 °C
13th Jan 1987*
3 -9.2 °C
23rd Jan 1963*		 -4.2 °C
16th Jan 1985*		 -5.6 °C
1st Feb 1956*
4 -8.6 °C
10th Feb 1991*		 -4.1 °C
13th Jan 1987*		 -5.5 °C
24th Jan 1963*
5 -8.6 °C
13th Jan 1963*		 -4.0 °C
7th Feb 1991*		 -5.5 °C
7th Feb 1991*
6 -8.1 °C
2nd Feb 1956*		 -3.9 °C
11th Jan 1987*		 -5.3 °C
23rd Jan 1963*
7 -8.1 °C
11 Feb 2012		 -3.0 °C
1st Feb 1954*		 -5.3 °C
2nd Feb 1956*
8 -8.1 °C
25th Jan 1963*		 -3.0 °C
31st Jan 1954*		 -5.0 °C
13th Jan 1963*
9 -8.1 °C
24th Jan 1963*		 -3.0 °C
24th Jan 1963*		 -5.0 °C
16th Jan 1985*
10 -7.5 °C
26th Jan 1963*		 -2.9 °C
9th Feb 1991*		 -4.8 °C
11th Jan 1987*

View more daily rankings

Warmest Months

Rank Mean Low Mean High Mean
1 16.6 °C
Jul 2006*		 28.6 °C
Jul 2026		 22.4 °C
Jul 2026
2 16.3 °C
Aug 1997*		 27.2 °C
Jul 2018		 21.9 °C
Jul 2006*
3 16.0 °C
Jul 1983*		 27.2 °C
Jul 2006*		 21.7 °C
Jul 2018
4 15.9 °C
Jul 2026		 26.7 °C
Aug 2026		 21.3 °C
Jul 1983*
5 15.9 °C
Jul 2018		 26.5 °C
Jul 1983*		 21.0 °C
Aug 2026
6 15.8 °C
Aug 1995*		 26.2 °C
Aug 2003*		 21.0 °C
Aug 1995*
7 15.6 °C
Aug 2022		 26.2 °C
Jul 2022		 20.9 °C
Jul 2022
8 15.5 °C
Aug 2020		 26.1 °C
Aug 1995*		 20.8 °C
Aug 1997*
9 15.5 °C
Jul 1995*		 25.9 °C
Jul 1976*		 20.8 °C
Aug 2003*
10 15.5 °C
Jul 2025		 25.8 °C
Aug 2022		 20.7 °C
Aug 2022

Coldest Months

Rank Mean Low Mean High Mean
1 -3.9 °C
Jan 1963*		 0.7 °C
Jan 1963*		 -1.6 °C
Jan 1963*
2 -3.3 °C
Feb 1956*		 1.1 °C
Feb 1986*		 -0.7 °C
Feb 1986*
3 -2.5 °C
Feb 1986*		 1.9 °C
Feb 1963*		 -0.5 °C
Feb 1956*
4 -2.2 °C
Jan 1979*		 2.3 °C
Feb 1956*		 -0.1 °C
Feb 1963*
5 -2.0 °C
Feb 1963*		 3.2 °C
Jan 1987*		 0.7 °C
Jan 1979*
6 -1.8 °C
Jan 1985*		 3.2 °C
Dec 2010		 1.0 °C
Jan 1985*
7 -1.1 °C
Jan 1987*		 3.6 °C
Jan 1979*		 1.0 °C
Jan 1987*
8 -1.1 °C
Dec 1981*		 3.7 °C
Jan 2010		 1.3 °C
Dec 2010
9 -0.9 °C
Dec 2010		 3.8 °C
Jan 1985*		 1.5 °C
Dec 1981*
10 -0.8 °C
Feb 1969*		 3.8 °C
Dec 1950*		 1.6 °C
Dec 1950*

View more mean rankings

Warmest Years

Rank Mean Low Mean High Mean
1 10.0 °C
Current		 19.0 °C
Current		 14.5 °C
Current
2 8.8 °C
2024		 16.4 °C
2022		 12.6 °C
2022
3 8.7 °C
2014		 16.4 °C
2025		 12.5 °C
2025
4 8.6 °C
2022		 16.0 °C
2014		 12.3 °C
2014
5 8.6 °C
2023		 16.0 °C
2020		 12.2 °C
2024

Coldest Years

Rank Mean Low Mean High Mean
1 5.6 °C
1963*		 12.5 °C
1963*		 9.0 °C
1963*
2 5.7 °C
1962*		 12.7 °C
1962*		 9.2 °C
1962*
3 6.0 °C
1956*		 12.9 °C
1956*		 9.4 °C
1956*
4 6.1 °C
1952*		 13.1 °C
1965*		 9.6 °C
1986*
5 6.2 °C
1986*		 13.1 °C
1986*		 9.7 °C
1965*

View more mean rankings

Warmest Days in September

Rank Daily Low Daily High Daily Mean
1 19.3 °C
Day 11, 2023		 32.0 °C
Day 13, 2016		 24.9 °C
Day 9, 2023
2 19.3 °C
Day 6, 2016		 31.7 °C
Day 9, 2023		 24.8 °C
Day 13, 2016
3 19.0 °C
Day 14, 2016		 30.6 °C
Day 6, 2023		 23.6 °C
Day 7, 2023
4 18.8 °C
Day 3, 2026		 30.5 °C
Day 7, 2023		 23.4 °C
Day 10, 2023
5 18.5 °C
Day 7, 2016		 30.4 °C
Day 10, 2023		 23.2 °C
Day 8, 2023

Coldest Days in September

Rank Daily Low Daily High Daily Mean
1 1.7 °C
Day 19, 1952*		 9.7 °C
Day 27, 1993*		 7.0 °C
Day 19, 1952*
2 2.3 °C
Day 30, 1957*		 10.5 °C
Day 15, 1986*		 7.1 °C
Day 30, 1957*
3 3.2 °C
Day 30, 1974*		 10.8 °C
Day 30, 1952*		 7.9 °C
Day 18, 1952*
4 3.4 °C
Day 28, 1952*		 11.2 °C
Day 15, 1994*		 8.2 °C
Day 30, 1974*
5 3.7 °C
Day 25, 2018		 11.5 °C
Day 14, 1975*		 8.4 °C
Day 18, 1962*

Warmest Septembers

Rank Mean Low Mean High Mean
1 14.5 °C
Sep 2006*		 23.2 °C
Sep 2023		 18.6 °C
Sep 2023
2 14.3 °C
Current		 21.9 °C
Current		 18.1 °C
Sep 2006*
3 14.2 °C
Sep 2023		 21.7 °C
Sep 1959*		 18.0 °C
Current
4 13.8 °C
Sep 2016		 21.7 °C
Sep 2006*		 17.7 °C
Sep 2016
5 13.0 °C
Sep 1999*		 21.5 °C
Sep 2003*		 16.8 °C
Sep 2021

Coldest Septembers

Rank Mean Low Mean High Mean
1 8.0 °C
Sep 1952*		 15.6 °C
Sep 1952*		 11.8 °C
Sep 1952*
2 8.1 °C
Sep 1986*		 16.2 °C
Sep 1986*		 12.2 °C
Sep 1986*
3 9.2 °C
Sep 1962*		 16.4 °C
Sep 1972*		 12.9 °C
Sep 1974*
4 9.2 °C
Sep 1965*		 16.5 °C
Sep 1974*		 12.9 °C
Sep 1965*
5 9.3 °C
Sep 1974*		 16.6 °C
Sep 1965*		 13.0 °C
Sep 1972*

*Data from before 2009 are mostly from the historical site at Whitestone Pond in Hampstead. Where data from that record is missing, other nearby sites were used, including St James Park, Heathrow, and Kew Gardens (pre-1910). Best efforts have been made to adjust for site differences, but uncertainties are somewhat greater for this data. I am grateful to the Met Office for making this data available for free through the MIDAS Open database.

Air-temperature extremes for each calendar day run midnight to midnight (local time), when daily extremes are reset. Night minimum (21–09) and day maximum (09–21) use those fixed windows instead.

Notes

  • Station temperature records began on 1st Jan 2009. A long-term series from nearby sites is available from 1881 (use Start year above).
  • Figures in brackets refer to departure from average conditions
  • An air frost requires the overnight (21-09) temperature to fall below freezing
  • All figures, unless specified, relate to the period midnight-midnight, this being when daily extremes are reset.
Definition of 'Feels-like' temperature: This displays either the Wind Chill index or the 'Humidex', depending on the temperature and humidity. These indices are attempts to depict what the air actually feels like on a human's skin - either from the warming effect of high humidity, or the cooling effect of the wind. However, they have little physical meaning and their valid use is debatable, so are provided for interest only.

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