Detailed Temperature Data

Current
Measure Value
Temperature 11.1 °C
Temperature Trend / hr +0.5 °C
Feels-like 11.9 °C
Night Minimum (21-09) 10.6 °C
Day Maximum (09-21)
24hr Average 14.4 °C
Daily Air Frost Hours 0
Monthly Air Frosts 0
Annual Air Frosts 21
Recent Averages and Extremes
Measure Today Yesterday
Minimum 10.6 °C (+0.3 °C)
05:13
12.2 °C (+1.8 °C)
23:57
Maximum 12.2 °C (-4.8 °C)
00:11
17.6 °C (+0.5 °C)
16:29
Mean 11.4 °C (-2.3 °C)
15.9 °C (+2.1 °C)
Last 6hrs  LondonTemperature31-day chart of mean LondonTemperature 31-day chart of min LondonTemperature 31-day chart of max LondonTemperature
Averages, Extremes and Records
Current Station Lifetime (09-21)
Measure 7-day Month 31-day Year 365-day Overall Sep 28th Sep
Lowest
Min
10.0 °C
(-0.7)
22nd
10.0 °C
(-0.7)
22nd
10.0 °C
(-0.7)
22nd
-3.9 °C
(-5.8)
13th Feb
-3.9 °C
(-5.8)
13th Feb
-8.1 °C
(-10.2)
11th Feb 2012
3.7 °C
(-6.8)
Day 25, 2018
8.6 °C
(-1.7)
2012
Highest
Max
22.5 °C
(+5.0)
24th
28.4 °C
(+8.0)
7th
28.4 °C
(+8.0)
7th
31.7 °C
(+9.1)
20th Jul
31.7 °C
(+9.1)
20th Jul
36.8 °C
(+14.1)
25th Jul 2019
32.0 °C
(+12.9)
Day 13, 2016
24.9 °C
(+7.9)
2011
Highest
Min
13.2 °C
(+2.7)
25th
17.2 °C
(+5.6)
10th
17.2 °C
(+5.6)
10th
17.3 °C
(+3.5)
20th Jul
17.3 °C
(+3.5)
20th Jul
21.1 °C
(+7.7)
12th Aug 2020
19.3 °C
(+7.5)
Day 6, 2016
14.5 °C
(+4.2)
2014
Lowest
Max
12.2 °C
(-4.8)
Today
12.2 °C
(-4.8)
Today
12.2 °C
(-4.8)
Today
-1.2 °C
(-8.4)
8th Feb
-1.2 °C
(-8.4)
8th Feb
-2.0 °C
(-9.0)
10th Jan 2009
11.6 °C
(-5.5)
Day 26, 2020
12.2 °C
(-4.8)
Today
Coldest
Day
11.4 °C
(-2.3)
Today
11.4 °C
(-2.3)
Today
11.4 °C
(-2.3)
Today
-1.8 °C
(-6.6)
8th Feb
-1.8 °C
(-6.6)
8th Feb
-4.1 °C
(-9.8)
28th Feb 2018
9.0 °C
(-4.7)
Day 26, 2020
11.4 °C
(-2.3)
Today
Warmest
Day
17.5 °C
(+3.4)
24th
21.6 °C
(+5.6)
8th
21.6 °C
(+5.6)
8th
24.3 °C
(+6.1)
19th Jul
24.3 °C
(+6.1)
19th Jul
28.4 °C
(+10.1)
25th Jul 2019
24.8 °C
(+9.6)
Day 13, 2016
18.6 °C
(+5.0)
2011
Averages                
Mean 15.7 °C
(+1.8)
17.1 °C
(+1.9)
16.9 °C
(+1.5)
11.9 °C
(+0.3)
11.2 °C
(+0.4)
11.6 °C
(+0.7)
15.5 °C
(+0.3)
14.8 °C
(+1.2)
Mean
Minimum
12.0 °C
(+1.5)
13.3 °C
(+2.0)
13.2 °C
(+1.9)
8.3 °C
(+0.4)
7.8 °C
(+0.5)
8.0 °C
(+0.4)
11.6 °C
(-0.1)
11.5 °C
(+1.2)
Mean
Maximum
19.1 °C
(+1.8)
21.1 °C
(+2.0)
20.7 °C
(+1.5)
15.7 °C
(+0.2)
14.6 °C
(+0.4)
15.2 °C
(+1.0)
19.6 °C
(+1.0)
18.6 °C
(+1.6)

Past Year Monthly Averages and Extremes (September 2020 - August 2021)
Extremes Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Lowest
Min
6.3 °C
(-6.0)
1st
5.3 °C
(-4.1)
10th
0.3 °C
(-3.5)
27th
-1.8 °C
(-4.5)
31st
-2.2 °C
(-4.5)
24th
-3.9 °C
(-5.8)
13th
-0.3 °C
(-3.1)
7th
-1.3 °C
(-6.0)
7th
2.7 °C
(-3.5)
2nd
7.7 °C
(-3.8)
23rd
10.4 °C
(-3.1)
16th
10.7 °C
(-1.8)
29th
Highest
Max
29.1 °C
(+10.2)
15th
17.6 °C
(+3.3)
20th
16.9 °C
(+4.7)
2nd
13.3 °C
(+5.8)
21st
12.3 °C
(+5.3)
28th
15.8 °C
(+7.6)
24th
23.6 °C
(+12.1)
30th
16.9 °C
(+3.9)
20th
23.7 °C
(+5.3)
31st
28.8 °C
(+8.8)
13th
31.7 °C
(+9.1)
20th
24.8 °C
(+2.4)
14th
Highest
Min
16.4 °C
(+4.6)
8th
14.1 °C
(+6.8)
30th
11.6 °C
(+6.7)
17th
10.6 °C
(+7.5)
18th
8.9 °C
(+6.6)
28th
11.3 °C
(+9.2)
20th
9.4 °C
(+5.0)
29th
5.6 °C
(+1.1)
1st
12.8 °C
(+5.6)
9th
16.8 °C
(+6.0)
11th
17.3 °C
(+3.5)
20th
16.5 °C
(+3.0)
12th
Lowest
Max
11.6 °C
(-5.7)
26th
10.7 °C
(-4.5)
13th
6.3 °C
(-3.0)
27th
0.8 °C
(-6.3)
31st
1.1 °C
(-5.9)
24th
-1.2 °C
(-8.4)
8th
5.3 °C
(-3.8)
4th
6.5 °C
(-5.3)
7th
11.8 °C
(-3.5)
6th
13.7 °C
(-7.1)
21st
17.8 °C
(-4.9)
30th
16.3 °C
(-5.0)
30th
Coldest
Day
9.0 °C
(-4.8)
26th
8.9 °C
(-3.6)
10th
3.4 °C
(-3.2)
27th
-0.3 °C
(-5.2)
31st
-0.1 °C
(-4.8)
8th
-1.8 °C
(-6.6)
8th
2.4 °C
(-3.8)
7th
3.0 °C
(-5.2)
6th
7.1 °C
(-3.8)
5th
12.6 °C
(-3.5)
21st
15.2 °C
(-2.1)
6th
14.7 °C
(-2.2)
29th
Warmest
Day
21.9 °C
(+6.8)
15th
14.9 °C
(+3.4)
20th
14.4 °C
(+4.7)
1st
11.2 °C
(+5.8)
18th
10.8 °C
(+6.1)
28th
13.1 °C
(+8.3)
20th
14.4 °C
(+6.4)
31st
10.8 °C
(+1.8)
20th
16.7 °C
(+5.3)
9th
22.2 °C
(+6.7)
14th
24.3 °C
(+6.1)
19th
19.4 °C
(+1.5)
14th
Averages Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Mean 15.7 °C
(+0.6)
11.4 °C
(-0.2)
9.5 °C
(+1.9)
6.1 °C
(+0.9)
4.1 °C
(-0.6)
6.1 °C
(+1.2)
7.7 °C
(+0.6)
7.4 °C
(-1.9)
11.5 °C
(-1.3)
17.8 °C
(+1.9)
18.8 °C
(+0.6)
16.9 °C
(-1.0)
Mean
Minimum
11.3 °C
(-0.4)
8.8 °C
(-0.1)
6.5 °C
(+1.4)
3.8 °C
(+1.1)
1.7 °C
(-0.9)
3.4 °C
(+1.2)
4.2 °C
(+0.4)
2.6 °C
(-3.0)
7.5 °C
(-1.3)
13.4 °C
(+1.8)
14.7 °C
(+0.5)
13.6 °C
(-0.5)
Mean
Maximum
20.4 °C
(+1.8)
14.1 °C
(-0.1)
12.2 °C
(+2.0)
8.0 °C
(+0.4)
6.4 °C
(-0.5)
8.4 °C
(+0.9)
11.1 °C
(+0.6)
12.1 °C
(-1.0)
15.8 °C
(-0.9)
22.1 °C
(+2.0)
23.3 °C
(+1.0)
20.9 °C
(-0.9)

Past Year Seasonal Averages
Season Daily Min Daily Max Mean
Winter 20/21 3.0 °C (+0.5 °C)
7.6 °C (+0.3 °C)
5.4 °C (+0.5 °C)
Spring 2021 4.8 °C (-1.3 °C)
13.0 °C (-0.4 °C)
8.9 °C (-0.9 °C)
Summer 2021 13.9 °C (+0.6 °C)
22.1 °C (+0.7 °C)
17.8 °C (+0.5 °C)
Autumn 2020 8.8 °C (+0.3 °C)
15.5 °C (+1.2 °C)
12.2 °C (+0.7 °C)

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.

Last 24hrs  LondonTemperature 12month mean  LondonTemperature 12month min  LondonTemperature 12month max  LondonTemperature
Record Period Averages
Measure 7-day Month Sep 31-day Year 365-day
Coldest -1.6 °C
Ending 9th Jan 2010
1.3 °C
Dec 2010
13.6 °C
2015
0.3 °C
Ending 26th Dec 2010
10.1 °C
2010
10.0 °C
Ending 27th Dec 2010
Warmest 25.0 °C
Ending 13th Aug 2020
21.7 °C
Jul 2018
17.7 °C
2016
21.9 °C
Ending 6th Aug 2018
12.3 °C
2014
12.5 °C
Ending 1st Apr 2019
Lowest
Mean
Daily-Min
-4.1 °C
Ending 20th Dec 2010
-0.9 °C
Dec 2010
9.9 °C
2015
-2.0 °C
Ending 26th Dec 2010
6.7 °C
2010
6.6 °C
Ending 27th Dec 2010
Highest
Mean
Daily-Min
18.8 °C
Ending 14th Aug 2020
15.9 °C
Jul 2018
13.8 °C
2016
16.1 °C
Ending 4th Aug 2018
8.7 °C
2014
9.1 °C
Ending 1st Oct 2016
Lowest
Mean
Daily-Max
0.6 °C
Ending 3rd Dec 2010
3.2 °C
Dec 2010
17.4 °C
2015
2.3 °C
Ending 25th Dec 2010
13.7 °C
2010
13.4 °C
Ending 1st Jun 2013
Highest
Mean
Daily-Max
32.6 °C
Ending 12th Aug 2020
27.2 °C
Jul 2018
21.5 °C
2016
27.8 °C
Ending 27th Jul 2018
16.0 °C
2014
16.5 °C
Ending 1st Apr 2019

Ranked Historical Temperature Data

Warmest Days
Rank Min Max Mean
1 21.1 °C
12th Aug 2020
36.8 °C
25th Jul 2019
28.4 °C
25th Jul 2019
2 20.2 °C
11th Aug 2020
36.2 °C
31st Jul 2020
27.2 °C
1st Jul 2015
3 20.0 °C
18th Aug 2012
35.1 °C
7th Aug 2020
26.9 °C
11th Aug 2020
4 19.6 °C
24th Jul 2019
34.2 °C
1st Jul 2015
26.6 °C
26th Jul 2018
5 19.6 °C
26th Jul 2019
33.9 °C
26th Jul 2018
26.5 °C
12th Aug 2020
6 19.5 °C
19th Jul 2014
33.9 °C
12th Aug 2020
26.2 °C
24th Jul 2019
7 19.5 °C
1st Jul 2015
33.7 °C
10th Aug 2020
25.9 °C
18th Jun 2017
8 19.4 °C
23rd Jul 2013
33.6 °C
29th Jun 2019
25.9 °C
10th Aug 2020
9 19.4 °C
25th Jul 2019
33.4 °C
11th Aug 2020
25.7 °C
19th Jun 2017
10 19.4 °C
8th Aug 2020
33.0 °C
21st Jun 2017
25.6 °C
31st Jul 2020
Coldest Days
Rank Min Max Mean
1 -8.1 °C
11th Feb 2012
-2.0 °C
10th Jan 2009
-4.1 °C
28th Feb 2018
2 -7.2 °C
20th Dec 2010
-1.8 °C
28th Feb 2018
-3.7 °C
11th Feb 2012
3 -6.0 °C
17th Dec 2010
-1.2 °C
8th Feb 2021
-3.2 °C
20th Dec 2010
4 -6.0 °C
18th Dec 2010
-1.0 °C
6th Dec 2010
-3.0 °C
17th Dec 2010
5 -5.7 °C
12th Feb 2012
-0.8 °C
17th Dec 2010
-2.8 °C
1st Mar 2018
6 -5.5 °C
17th Jan 2013
-0.8 °C
16th Jan 2013
-2.8 °C
10th Jan 2009
7 -5.4 °C
28th Feb 2018
-0.7 °C
2nd Dec 2010
-2.7 °C
3rd Dec 2010
8 -5.3 °C
7th Jan 2010
-0.3 °C
20th Jan 2013
-2.6 °C
7th Jan 2010
9 -5.3 °C
19th Dec 2010
-0.2 °C
25th Dec 2010
-2.6 °C
19th Dec 2010
10 -5.1 °C
7th Jan 2009
-0.2 °C
9th Feb 2021
-2.5 °C
18th Dec 2010


Warmest Months
Rank Min Max Mean
1 15.9 °C
Jul 2018
27.2 °C
Jul 2018
21.7 °C
Jul 2018
2 15.5 °C
Aug 2020
25.8 °C
Jul 2013
20.4 °C
Jul 2013
3 15.2 °C
Jul 2010
24.7 °C
Jul 2014
19.8 °C
Jul 2019
4 15.2 °C
Jul 2017
24.5 °C
Jul 2019
19.7 °C
Jul 2014
5 15.1 °C
Jul 2019
24.3 °C
Jul 2010
19.6 °C
Aug 2020
6 15.0 °C
Jul 2013
24.2 °C
Aug 2020
19.5 °C
Jul 2010
7 14.9 °C
Jul 2014
23.9 °C
Aug 2019
19.1 °C
Jul 2017
8 14.7 °C
Jul 2016
23.6 °C
Jun 2017
19.0 °C
Aug 2019
9 14.7 °C
Jul 2021
23.5 °C
Aug 2016
18.9 °C
Aug 2016
10 14.7 °C
Aug 2016
23.4 °C
Jun 2018
18.9 °C
Jun 2017
Coldest Months
Rank Min Max Mean
1 -0.9 °C
Dec 2010
3.2 °C
Dec 2010
1.3 °C
Dec 2010
2 -0.2 °C
Jan 2010
3.7 °C
Jan 2010
1.8 °C
Jan 2010
3 0.4 °C
Feb 2018
5.5 °C
Jan 2009
3.2 °C
Jan 2009
4 0.9 °C
Jan 2009
5.7 °C
Feb 2013
3.3 °C
Feb 2018
5 1.0 °C
Mar 2013
5.8 °C
Feb 2010
3.4 °C
Feb 2010
6 1.2 °C
Feb 2013
5.8 °C
Dec 2009
3.5 °C
Feb 2013
7 1.3 °C
Jan 2017
5.9 °C
Feb 2018
3.5 °C
Mar 2013
8 1.3 °C
Feb 2010
6.1 °C
Jan 2013
3.8 °C
Dec 2009
9 1.6 °C
Dec 2009
6.1 °C
Mar 2013
4.1 °C
Jan 2017
10 1.6 °C
Feb 2012
6.4 °C
Jan 2021
4.1 °C
Jan 2021


Warmest Days in September
Rank Min Max Mean
1 19.3 °C
Day 6, 2016
32.0 °C
Day 13, 2016
24.8 °C
Day 13, 2016
2 19.0 °C
Day 14, 2016
29.1 °C
Day 15, 2020
23.1 °C
Day 14, 2016
3 18.5 °C
Day 7, 2016
28.4 °C
Day 7, 2021
22.6 °C
Day 7, 2016
4 17.7 °C
Day 13, 2016
28.2 °C
Day 15, 2016
22.1 °C
Day 15, 2016
5 17.6 °C
Day 18, 2018
28.1 °C
Day 5, 2013
21.9 °C
Day 15, 2020
Coldest Days in September
Rank Min Max Mean
1 3.7 °C
Day 25, 2018
11.6 °C
Day 26, 2020
9.0 °C
Day 26, 2020
2 5.6 °C
Day 25, 2010
11.9 °C
Day 23, 2012
9.5 °C
Day 25, 2010
3 5.6 °C
Day 6, 2015
12.2 °C
Today
10.1 °C
Day 23, 2012
4 5.8 °C
Day 30, 2012
12.9 °C
Day 9, 2013
10.2 °C
Day 25, 2020
5 6.0 °C
Day 22, 2012
13.2 °C
Day 27, 2020
10.4 °C
Day 26, 2010

Notes

  • Temperature records began on 1st Jan 2009
  • 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.