Daily Report for 27th March 2026

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.7 °C (+1.6) 04:37 5.3 °C (+1.0) 6.7 °C (+1.6), 2010 -1.3 °C (-6.4), 2013
Maximum Temperature 12.5 °C (+0.3) 12:53 13.0 °C (+2.1) 18.2 °C (+6.0), 2012 3.4 °C (-8.8), 2013
Mean Temperature 9.5 °C (+1.0) 9.0 °C (+1.6) 11.3 °C, 2012 1.1 °C, 2013
Minimum Humidity 57% 00:01 59% 76%, 2022 34%, 2012
Maximum Humidity 90% 18:05 90% 95%, 2014 71%, 2012
Mean Humidity 79% 77% 86%, 2022 50%, 2012
Minimum Pressure 1018 hPa 18:11 1014 hPa 1035 hPa, 2012 978 hPa, 2024
Maximum Pressure 1024 hPa 00:06 1022 hPa 1038 hPa, 2012 984 hPa, 2024
Mean Pressure 1020 hPa 1018 hPa 1036 hPa, 2012 982 hPa, 2024
Mean Wind Speed 5.6 mph (+0.4) 5.4 mph (+0.2) 8.3 mph, 2021 1.5 mph, 2019
Maximum Wind Speed 14.6 mph 14:20 14.5 mph 22.7 mph, 2024 7.0 mph, 2019
Maximum Gust 23.0 mph 13:54 22.7 mph 34.4 mph, 2016 10.5 mph, 2017
Mean Wind Direction W
Rainfall 1.2 mm 27.2 mm (80%) 7.0 mm, 2016
Maximum Hourly Rain 1.0 mm 19:06 2.6 mm, 2016
Maximum 10-min Rain 0.6 mm 18:48 1.3 mm, 2016
Maximum Rain Rate 1.6 mm/h 18:48 30 mm/h, 2010
Minimum Dew Point -0.2 °C 00:01 2.1 °C 4.1 °C, 2022 -7.3 °C, 2013
Maximum Dew Point 10.0 °C 18:41 7.6 °C 10.8 °C, 2018 -3.8 °C, 2013
Mean Dew Point 6.1 °C 5.0 °C 6.5 °C, 2025 -5.5 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 6.7 °C 04:38 5.7 °C 7.0 °C, 2010 -1.3 °C, 2013
Day Maximum (09-21) 12.5 °C 12:53 12.9 °C 18.2 °C, 2012 3.4 °C, 2013
Max 10m Temp Rise 0.5 °C 09:40 0.6 °C 1.0 °C, 2012 0.4 °C, 2013
Max 1hr Temp Rise 1.7 °C 08:41 2.0 °C 3.5 °C, 2012 1.1 °C, 2010
Max 1hr Hum Rise 7% 01:18 8% 17%, 2014 5%, 2011
Max 10m Temp Fall 0.4 °C 19:12 0.5 °C 1.4 °C, 2016 0.2 °C, 2013
Max 1hr Temp Fall 1.6 °C 19:47 1.6 °C 3.6 °C, 2024 0.7 °C, 2013
Max 1hr Hum Fall 9% 23:30 10% 16%, 2014 6%, 2022
Max 10m Wind Speed 10.6 mph 09:57 10.5 mph 17.1 mph, 2024 4.7 mph, 2019
Minimum Feels-like 3.6 °C 03:54 2.1 °C 4.2 °C, 2010 -6.3 °C, 2013
Maximum Feels-like 13.2 °C 12:53 13.2 °C 18.2 °C, 2012 2.7 °C, 2013
Mean Feels-like 8.7 °C 8.0 °C 11.0 °C, 2012 -2.7 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 6 hrs, 2013 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.8 °C (-1.3) 7.7 °C (+1.1) 13.5 °C (+6.4), 2012 4.3 °C (-2.8), 2016
Humidity Range 33% 31% 52%, 2014 19%, 2022
Pressure Range 6 hPa 8 hPa 11 hPa, 2018 1 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]86 hrs (88%) [30%] 11.4 [101%], 2012 0 [0%], 2026
Wet Hours 2
[Mean rain rate: 0.6 mm/h]		25 hrs (54%) [3.9%] 6, 2018 , 2009
Cloud Cover unknown
Events None
Comments data is awaiting quality control from site operator
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature @ Hampstead Heath 8.5 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 27th March 2026.
Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs are derived based on analysis of webcam observations, but may use data from our closest site, Heathrow, when needed.
Wet hrs are dervied algorithmically from rainfall data, though may be adjusted manually.
Rainfall totals may be manually adjusted after the fact to correct delayed or erroneous data.
Cloud cover and Events are manually reported, often with multi-week delays.
Data is generally reliable and accurate but should always be viewed with some quantity of salt to hand.
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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

daycamsumFull resolution individual images at up-to 5 minute intervals

Wind rose