Records since 2009 (ties show the most recent year) · day max 09-21, night min 21-09 · normals 1991-2020; rain normal is the average total and the share of years with ≥0.2 mm on this date · more records
NW3 Weather is a meteorological observation site located near Hampstead, in North London, UK.
The site was established with an automatic personal weather station
in July 2010 and runs continuously, with updates at least every 60s.
This weather station has been recording data for
17 years and 278 days
Max 10.1 °C, 1.6 °C below the 1991–2020 normal, and a mild night (min 8.6 °C, +2.1 °C) — the mildest of November so far. The mean of 9.2 °C was near normal.
No sunshine at all against a normal of 3.0 hours, the second sunless day in a row.
A dry day (0.0 mm), ending a three-day spell of light rain days, and the fifth straight day with the max below normal.
November so far: cool days, dull skies and very dry under high pressure
The mean of 9.3 °C is close to normal (−0.1 °C), but days have been cool: the mean max of 10.7 °C is 1.4 °C below normal and the 3rd-lowest for 01–05 November since 2009. Nights have been mild (+1.2 °C).
Every day so far has had a max below normal. The 1st set a new record low max for the date at 10.1 °C (previous lowest 11.4 °C in 2012 and 2018).
Only 3.6 hours of sunshine (24% of normal), the second-dullest start since 2009 after 2024 (2.5 hours), with three sunless days — a new record for these dates.
Rain totals just 1.6 mm (14% of normal), the 3rd-driest start; three light rain days but none reaching 1 mm.
Mean pressure of 1032.1 hPa is the highest for 01–05 November since 2009 (previous 1027.3 hPa in 2024).
2026 so far: the warmest and sunniest year to date on record in Hampstead
Mean 14.4 °C, 2.1 °C above the 1991–2020 normal and the warmest 01 January–05 November since 2009 (next 2022, 13.5 °C). Mean max and min are both the highest in the Hampstead series back to 1881. May, July and August were each the warmest on station record.
77 days reached 25 °C (previous record 48 in 2018) and there have been 24 hot days (previous 13 in 2018). The peak was 35.8 °C on 26 June and 13 August; the 21.3 °C min on 09–10 July is the year's warmest night.
Sunshine 1794.5 hours (123% of normal), a station record ahead of 2025 (1690.4 hours) and 3rd in the series back to 1910. July alone had 315.1 hours.
Rain 473.8 mm is 94% of normal, but came in bursts: July was completely dry within a record 51-day dry spell (28 June–17 August), while 32.0 mm fell in an hour on 23 June, the 2nd-highest hourly rate since 2009.
Fog was noted on at least 6 mornings, already the most since 2009; snow fell on just 2 days.
October 2026: sunniest October on station record, with a wet second half and record early warmth
153.6 hours of sunshine (130% of normal) beat 2018's 153.0 for the sunniest October since 2009. 04 Oct (9.3 h) and 17 Oct (7.6 h) set date records.
Mean 12.9°C, 1.2°C above normal and 7th-warmest of 18 station Octobers. Highs ran 1.8°C above. 04–06 Oct each set a date record, peaking at 22.5°C on the 5th, and 15 Oct set date records for both max (21.2°C) and min (13.9°C). The coldest night was only 6.0°C (21st), the mildest monthly minimum since 2009, with no air frost.
Rain 89.6 mm (138% of normal), 7th-wettest since 2009. A 9-day wet spell (16–24 Oct) ended with 23.8 mm on the 24th, a date record. 07 Oct (7.4 mm) also set one.
Fog was noted at 09 on the 30th. Gusts reached 42.6 mph on the 25th, the 2nd-highest October gust since 2009.
Mean pressure (1019.3 hPa) was the 2nd-highest for October on station record.
Air pollution
