Detailed Sunshine Data
Current/Latest conditions
Yesterday's Sun
6 hrs
Yesterday's % of Max
49%
Monthly Sun
186 hrs (+69%)
Annual Sun
1411 hrs (+27%)
Summer Total
691 hrs (+20%)
Last 12 months: Total Sun Hours
Measure
Aggregation
Overlay
Averages, Extremes, and Records
Recent
| Sunshine | 7-day | Aug | 31-day | Year | 365-day |
| Total | 58 hrs (+38%) |
186 hrs (+69%) |
309 hrs (+63%) |
1411 hrs (+27%) |
1947 hrs (+22%) |
| Sunniest Day |
14 hrs 13th |
14 hrs 7th |
14 hrs 29th |
15 hrs 25th Jun |
15 hrs 25th Jun |
| Sun Days |
6 days | 17 days | 30 days | 203 days | 313 days |
| Dullest Day |
2 hrs 16th |
2 hrs 16th |
2 hrs 16th |
0 hrs 8th Jan |
0 hrs 17th Sep |
| % of Max | 72% | 80% | 74% | 47% | 45% |
Station Lifetime (2009-2026)
| Sunshine | Overall | Aug (all) | 18th Aug |
| Mean | 4 hrs (-2%) |
6 hrs (-6%) |
4 hrs (-37%) |
| Sunniest Day |
15 hrs 22 Jun 2018 |
14 hrs Day 2, 2018 |
12 hrs 2012 |
| Sun Days |
85% | 95% | 88% |
| Dullest Day |
0 hrs 01 Jan 2009 |
0 hrs Day 10, 2010 |
0 hrs 2011 |
| % of Max | 37% | 42% | 28% |
Record Period Averages
| Measure | 7-day | Monthly | Aug | 31-day | Annual | 365-day |
| Sunniest | 95 hrs 28 May 2026 |
324 hrs Jul 2026 |
234 hrs Aug 2022 |
341 hrs 20 Jul 2026 |
1910 hrs 2025 |
1956 hrs 14 Aug 2026 |
| Dullest | 0 hrs 16 Jan 2010 |
21 hrs Dec 2024 |
94 hrs Aug 2021 |
17 hrs 04 Jan 2022 |
1323 hrs 2021 |
1229 hrs 16 Apr 2013 |
| Highest % of Max | 96% 12 Aug 2022 |
80% Current |
80% Current |
77% 15 Aug 2026 |
47% 2026 |
46% 07 Jan 2026 |
| Lowest % of Max | 0% 16 Jan 2010 |
9.8% Dec 2024 |
23% Aug 2021 |
7.7% 04 Jan 2022 |
31% 2024 |
29% 16 Apr 2013 |
Cumulative sunshine vs last year and normal
Past Year Monthly Averages and Extremes (August 2025 - August 2026)
| Month | Total | Sunniest Day |
Sun Days |
Dullest Day |
% of Max |
| Aug 2025 | 228 hrs (+24%) |
14 hrs 10th |
31 days | 0.3 hrs 18th |
55% |
| 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 | 186 hrs (+0%) |
14 hrs 7th |
17 days | 2 hrs 16th |
80% |
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 2025 | 691 hrs (+20%) |
91 days |
52% |
| 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 25 Jun 2020 |
100% 23 Aug 2016 |
| 2 | 15 hrs 24 Jun 2020 |
100% 09 Oct 2018 |
| 3 | 15 hrs 26 Jun 2018 |
100% 29 Sep 2018 |
| 4 | 15 hrs 25 Jun 2018 |
100% 27 Sep 2018 |
| 5 | 15 hrs 22 Jun 2018 |
100% 10 Oct 2018 |
| 6 | 15 hrs 02 Jul 2018 |
100% 21 Nov 2025 |
| 7 | 15 hrs 03 Jul 2018 |
100% 29 Apr 2025 |
| 8 | 15 hrs 23 Jun 2020 |
100% 22 Oct 2018 |
| 9 | 15 hrs 22 Jun 2020 |
100% 21 Oct 2018 |
| 10 | 15 hrs 08 Jun 2021 |
100% 26 Sep 2018 |
Sunniest Months
| Rank | Total | Sun Days | % of Max |
| 1 | 324 hrs Jul 2026 |
31 days May 2020 |
80% Current |
| 2 | 306 hrs May 2020 |
31 days Jul 2025 |
71% Jul 2026 |
| 3 | 263 hrs Jul 2018 |
31 days Aug 2025 |
69% May 2020 |
| 4 | 260 hrs Jun 2025 |
31 days Jul 2016 |
63% Apr 2025 |
| 5 | 256 hrs Jul 2013 |
31 days Jul 2010 |
63% Apr 2020 |
| 6 | 253 hrs Jun 2023 |
31 days Jul 2011 |
61% Apr 2026 |
| 7 | 243 hrs May 2018 |
31 days Aug 2009 |
59% Sep 2025 |
| 8 | 237 hrs Apr 2020 |
31 days Mar 2014 |
58% Jul 2018 |
| 9 | 235 hrs Apr 2025 |
31 days Aug 2023 |
57% Jun 2025 |
| 10 | 234 hrs Aug 2022 |
31 days Jul 2009 |
57% Apr 2011 |
Dullest Months
| Rank | Total | Sun Days | % of Max |
| 1 | 21 hrs Dec 2024 |
12 days Dec 2010 |
9.8% Dec 2024 |
| 2 | 28 hrs Dec 2023 |
13 days Dec 2021 |
13% Dec 2023 |
| 3 | 29 hrs Dec 2010 |
16 days Dec 2024 |
13% Dec 2021 |
| 4 | 29 hrs Dec 2021 |
17 days Feb 2025 |
13% Dec 2010 |
| 5 | 36 hrs Nov 2015 |
17 days Dec 2016 |
14% Mar 2023 |
| 6 | 39 hrs Jan 2011 |
17 days Dec 2023 |
15% Nov 2015 |
| 7 | 40 hrs Dec 2015 |
17 days Dec 2017 |
15% Mar 2013 |
| 8 | 40 hrs Feb 2011 |
17 days Feb 2011 |
16% Feb 2026 |
| 9 | 41 hrs Feb 2026 |
17 days Current |
16% Feb 2011 |
| 10 | 41 hrs Jan 2013 |
17 days Jan 2013 |
16% Feb 2017 |
Sunniest Years
| Rank | Total | Sun Days | % of Max |
| 1 | 1910 hrs 2025 |
327 days 2009 |
47% Current |
| 2 | 1734 hrs 2018 |
323 days 2011 |
45% 2025 |
| 3 | 1730 hrs 2020 |
322 days 2023 |
41% 2018 |
| 4 | 1705 hrs 2022 |
322 days 2014 |
41% 2022 |
| 5 | 1599 hrs 2014 |
316 days 2025 |
40% 2020 |
Dullest Years
| Rank | Total | Sun Days | % of Max |
| 1 | 1323 hrs 2021 |
203 days Current |
31% 2024 |
| 2 | 1326 hrs 2024 |
294 days 2021 |
31% 2021 |
| 3 | 1359 hrs 2013 |
297 days 2024 |
32% 2013 |
| 4 | 1411 hrs Current |
301 days 2017 |
33% 2010 |
| 5 | 1426 hrs 2016 |
303 days 2013 |
34% 2015 |
Sunniest Days in August
| Rank | Total | % of Max |
| 1 | 14 hrs Day 7, 2022 |
100% Day 7, 2026 |
| 2 | 14 hrs Day 2, 2018 |
100% Day 5, 2018 |
| 3 | 14 hrs Day 6, 2022 |
100% Day 23, 2016 |
| 4 | 14 hrs Day 5, 2018 |
100% Day 26, 2019 |
| 5 | 14 hrs Day 7, 2026 |
100% Day 7, 2022 |
Sunniest Augusts
| Rank | Total | Sun Days | % of Max |
| 1 | 234 hrs Aug 2022 |
31 days Aug 2023 |
80% Current |
| 2 | 228 hrs Aug 2025 |
31 days Aug 2009 |
56% Aug 2022 |
| 3 | 205 hrs Aug 2019 |
31 days Aug 2012 |
55% Aug 2025 |
| 4 | 194 hrs Aug 2013 |
31 days Aug 2025 |
50% Aug 2019 |
| 5 | 192 hrs Aug 2016 |
30 days Aug 2019 |
47% Aug 2013 |
Dullest Augusts
| Rank | Total | Sun Days | % of Max |
| 1 | 94 hrs Aug 2021 |
17 days Current |
23% Aug 2021 |
| 2 | 117 hrs Aug 2010 |
27 days Aug 2015 |
29% Aug 2010 |
| 3 | 120 hrs Aug 2015 |
28 days Aug 2020 |
29% Aug 2015 |
| 4 | 137 hrs Aug 2011 |
28 days Aug 2021 |
33% Aug 2011 |
| 5 | 157 hrs Aug 2009 |
28 days Aug 2017 |
39% Aug 2009 |
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
- 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.