Detailed Sunshine Data
Current/Latest conditions
Yesterday's Sun
0.7 hrs
Yesterday's % of Max
6.2%
Monthly Sun
98 hrs (-2%)
Annual Sun
1590 hrs (+24%)
Autumn Total
380 hrs (+9%)
Last 12 months: Total Sun Hours
Measure
Aggregation
Overlay
Averages, Extremes, and Records
Recent
| Sunshine | 7-day | Sep | 31-day | Year | 365-day |
| Total | 30 hrs (-12%) |
98 hrs (-2%) |
166 hrs (+2%) |
1590 hrs (+24%) |
1912 hrs (+20%) |
| Sunniest Day |
8 hrs 16th |
12 hrs 5th |
13 hrs 25th |
15 hrs 25th Jun |
15 hrs 25th Jun |
| Sun Days |
6 days | 19 days | 26 days | 232 days | 310 days |
| Dullest Day |
0.7 hrs Yesterday |
0.2 hrs 2nd |
0 hrs 27th |
0 hrs 8th Jan |
0 hrs 26th Sep |
| % of Max | 44% | 44% | 45% | 47% | 44% |
Long-term record (1950-2026)
| Sunshine | Overall | Sep (all) | 20th Sep |
| Mean | 4 hrs (-2%) |
5 hrs (+3%) |
5 hrs (+9%) |
| Sunniest Day |
15 hrs 22 Jun 2018 |
13 hrs Day 2, 1980* |
11 hrs 2019 |
| Sun Days |
83% | 92% | 92% |
| Dullest Day |
0 hrs 1st Jan 1950* |
0 hrs Day 3, 1950* |
0 hrs 1960* |
| % of Max | 37% | 44% | 47% |
Record Period Averages
| Measure | 7-day | Monthly | Sep | 31-day | Annual | 365-day |
| Sunniest | 99 hrs 18th Jun 1996* |
324 hrs Jul 2026 |
226 hrs Sep 1964* |
341 hrs 20 Jul 2026 |
2019 hrs 2003* |
2061 hrs 5th May 1990* |
| Dullest | 0 hrs 16 Jan 2010 |
9 hrs Dec 1956* |
93 hrs Sep 1957* |
9 hrs 31st Dec 1956* |
1280 hrs 1958* |
1229 hrs 16 Apr 2013 |
| Highest % of Max | 97% 3rd May 1990* |
71% Jul 2026 |
66% Sep 1964* |
77% 15 Aug 2026 |
48% 2003* |
48% 28th Dec 2003* |
| Lowest % of Max | 0% 16 Jan 2010 |
4.1% Dec 1956* |
27% Sep 1957* |
4.1% 31st Dec 1956* |
30% 1958* |
29% 1st Jun 1969* |
Cumulative sunshine vs last year and normal
Past Year Monthly Averages and Extremes (September 2025 - September 2026)
| Month | Total | Sunniest Day |
Sun Days |
Dullest Day |
% of Max |
| Sep 2025 | 202 hrs (+37%) |
11 hrs 25th |
28 days | 0 hrs 17th |
59% |
| Oct 2025 | 98 hrs (-17%) |
9 hrs 6th |
25 days | 0 hrs 3rd |
33% |
| Nov 2025 | 80 hrs (-5%) |
8 hrs 21st |
26 days | 0 hrs 14th |
34% |
| Dec 2025 | 69 hrs (+6%) |
7 hrs 31st |
18 days | 0 hrs 1st |
32% |
| Jan 2026 | 63 hrs (-9%) |
7 hrs 4th |
22 days | 0 hrs 8th |
28% |
| Feb 2026 | 41 hrs (-48%) |
9 hrs 25th |
18 days | 0 hrs 2nd |
16% |
| Mar 2026 | 126 hrs (+11%) |
11 hrs 18th |
24 days | 0 hrs 6th |
38% |
| Apr 2026 | 229 hrs (+42%) |
14 hrs 30th |
30 days | 0.1 hrs 3rd |
61% |
| May 2026 | 226 hrs (+20%) |
15 hrs 27th |
31 days | 0.1 hrs 10th |
51% |
| Jun 2026 | 216 hrs (+11%) |
15 hrs 25th |
30 days | 0.2 hrs 11th |
48% |
| Jul 2026 | 324 hrs (+66%) |
14 hrs 8th |
31 days | 4 hrs 21st |
71% |
| Aug 2026 | 266 hrs (+44%) |
14 hrs 7th |
27 days | 0 hrs 27th |
64% |
| Sep 2026 | 98 hrs (-33%) |
12 hrs 5th |
19 days | 0.2 hrs 2nd |
44% |
View daily tables of
sunshine hours
/ % of max
for the past year
View monthly tables of
sunshine hours
/ % of max
for all months in the station history.
Past Year Seasonal Averages
| Season | Total | Sun Days | % of Max |
| Winter 25/26 | 173 hrs (-18%) |
58 days |
25% |
| Spring 2026 | 581 hrs (+26%) |
85 days |
50% |
| Summer 2026 | 806 hrs (+40%) |
88 days |
61% |
| Autumn 2025 | 380 hrs (+9%) |
79 days |
42% |
Past 31 days and current year cumulative trends for Sunshine
Ranked Historical Sunshine Data
Sunniest Days
| Rank | Total | % of Max |
| 1 | 15 hrs 26 Jun 2018 |
100% 27th Dec 1991* |
| 2 | 15 hrs 25 Jun 2018 |
100% 11th Feb 1985* |
| 3 | 15 hrs 24 Jun 2020 |
100% 21 Oct 2018 |
| 4 | 15 hrs 22 Jun 2018 |
100% 22 Oct 2018 |
| 5 | 15 hrs 02 Jul 2018 |
100% 22nd Jan 1985* |
| 6 | 15 hrs 25 Jun 2020 |
100% 04 Mar 2025 |
| 7 | 15 hrs 03 Jul 2018 |
100% 29th Sep 1955* |
| 8 | 15 hrs 23 Jun 2020 |
100% 02 Nov 2018 |
| 9 | 15 hrs 22 Jun 2020 |
100% 05 Mar 2025 |
| 10 | 15 hrs 20th Jun 2003* |
100% 16th Feb 1985* |
Sunniest Months
| Rank | Total | Sun Days | % of Max |
| 1 | 324 hrs Jul 2026 |
31 days Aug 1988* |
71% Jul 2026 |
| 2 | 306 hrs May 2020 |
31 days Jul 1995* |
69% May 2020 |
| 3 | 299 hrs May 1989* |
31 days May 1956* |
69% Aug 1995* |
| 4 | 286 hrs Aug 1995* |
31 days Aug 1979* |
68% May 1989* |
| 5 | 286 hrs Jun 1975* |
31 days Jul 1957* |
66% Sep 1964* |
| 6 | 276 hrs May 1990* |
31 days Jul 1979* |
64% Sep 1959* |
| 7 | 274 hrs Jun 1957* |
31 days Aug 1957* |
64% Aug 2026 |
| 8 | 272 hrs Jun 1996* |
31 days Jul 2009 |
64% Aug 2005* |
| 9 | 269 hrs Jul 1959* |
31 days May 2011 |
63% Jun 1975* |
| 10 | 267 hrs Jul 1989* |
31 days May 1973* |
63% Apr 1990* |
Dullest Months
| Rank | Total | Sun Days | % of Max |
| 1 | 9 hrs Dec 1956* |
4 days Dec 1956* |
4.1% Dec 1956* |
| 2 | 21 hrs Dec 1969* |
10 days Dec 1953* |
9.5% Dec 1969* |
| 3 | 21 hrs Dec 2024 |
10 days Dec 1969* |
9.8% Dec 2024 |
| 4 | 25 hrs Jan 1955* |
11 days Dec 1950* |
11% Jan 1955* |
| 5 | 28 hrs Dec 2023 |
11 days Jan 1955* |
12% Jan 1996* |
| 6 | 28 hrs Jan 1996* |
12 days Jan 1953* |
13% Dec 2023 |
| 7 | 29 hrs Dec 2010 |
12 days Dec 1968* |
13% Dec 2021 |
| 8 | 29 hrs Dec 2021 |
12 days Dec 2010 |
13% Feb 1966* |
| 9 | 32 hrs Dec 1953* |
12 days Jan 1970* |
13% Dec 2010 |
| 10 | 32 hrs Feb 1966* |
13 days Dec 2002* |
13% Jan 1973* |
Sunniest Years
| Rank | Total | Sun Days | % of Max |
| 1 | 2019 hrs 2003* |
327 days 2009 |
48% 2003* |
| 2 | 1910 hrs 1990* |
323 days 2011 |
47% Current |
| 3 | 1910 hrs 2025 |
323 days 2003* |
45% 2025 |
| 4 | 1901 hrs 1989* |
322 days 2023 |
45% 1990* |
| 5 | 1884 hrs 1995* |
322 days 2014 |
44% 1995* |
Dullest Years
| Rank | Total | Sun Days | % of Max |
| 1 | 1280 hrs 1958* |
232 days Current |
30% 1958* |
| 2 | 1323 hrs 2021 |
272 days 1963* |
31% 2024 |
| 3 | 1326 hrs 2024 |
275 days 1950* |
31% 1968* |
| 4 | 1331 hrs 1968* |
277 days 1964* |
31% 2021 |
| 5 | 1332 hrs 1981* |
278 days 1968* |
32% 2013 |
Sunniest Days in September
| Rank | Total | % of Max |
| 1 | 13 hrs Day 2, 1982* |
100% Day 27, 1959* |
| 2 | 13 hrs Day 2, 1994* |
100% Day 26, 2018 |
| 3 | 13 hrs Day 2, 1999* |
100% Day 16, 1979* |
| 4 | 13 hrs Day 2, 1980* |
100% Day 27, 2018 |
| 5 | 13 hrs Day 8, 2006* |
100% Day 24, 2018 |
Sunniest Septembers
| Rank | Total | Sun Days | % of Max |
| 1 | 226 hrs Sep 1964* |
30 days Sep 1953* |
66% Sep 1964* |
| 2 | 223 hrs Sep 1959* |
30 days Sep 2003* |
64% Sep 1959* |
| 3 | 216 hrs Sep 2003* |
30 days Sep 2007* |
63% Sep 2003* |
| 4 | 202 hrs Sep 2025 |
30 days Sep 1978* |
59% Sep 2025 |
| 5 | 199 hrs Sep 1997* |
30 days Sep 1959* |
57% Sep 1997* |
Dullest Septembers
| Rank | Total | Sun Days | % of Max |
| 1 | 93 hrs Sep 1957* |
19 days Current |
27% Sep 1957* |
| 2 | 98 hrs Current |
24 days Sep 1963* |
31% Sep 1984* |
| 3 | 104 hrs Sep 1984* |
24 days Sep 2016 |
31% Sep 1993* |
| 4 | 108 hrs Sep 1993* |
25 days Sep 2024 |
32% Sep 2013 |
| 5 | 108 hrs Sep 1956* |
25 days Sep 1969* |
32% Sep 1956* |
*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.
Sunshine hours are counted for each calendar day (midnight to midnight, local time) from daylight webcam imagery, as a fraction of the maximum possible.
Notes
- Sunshine totals are currently only available for prior days because they are computed daily from webcam footage using an image classification model
- Sunshine records at NW3 began in 2009. A long-term series from nearby sites is available from 1910 (use Start year above).
- Figures in brackets refer to departure from average conditions (as a percentage for sunshine)
- Sun days are days with more than 0 hours of sunshine recorded
- % of max is sunshine hours as a percentage of the maximum possible for that period.