Daily Report for 9th April 2026


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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.0 °C (+2.3) 23:55 6.6 °C (+1.0) 9.1 °C (+3.4), 2020 2.1 °C (-3.6), 2022
Maximum Temperature 22.1 °C (+8.3) 12:57 17.1 °C (+3.7) 25.2 °C (+11.4), 2017 8.9 °C (-4.9), 2013
Mean Temperature 14.8 °C (+5.3) 12.0 °C (+2.4) 16.1 °C, 2017 5.8 °C, 2013
Minimum Humidity 46% 15:52 48% 93%, 2018 29%, 2017
Maximum Humidity 85% 07:02 86% 96%, 2012 71%, 2011
Mean Humidity 66% 67% 95%, 2018 55%, 2011
Minimum Pressure 1017 hPa 16:29 1017 hPa 1032 hPa, 2010 987 hPa, 2012
Maximum Pressure 1023 hPa 23:55 1024 hPa 1035 hPa, 2010 1001 hPa, 2013
Mean Pressure 1019 hPa 1021 hPa 1034 hPa, 2010 997 hPa, 2013
Mean Wind Speed 5.3 mph (+0.4) 5.6 mph (+0.7) 11.0 mph, 2024 2.0 mph, 2010
Maximum Wind Speed 17.3 mph 20:11 16.2 mph 20.9 mph, 2024 7.6 mph, 2010
Maximum Gust 26.5 mph 17:23 24.6 mph 35.7 mph, 2024 10.5 mph, 2010
Mean Wind Direction WNW
Rainfall 0.0 mm 1.0 mm (8%) 8.0 mm, 2012
Maximum Hourly Rain n/a 1.3, 2018
Maximum 10-min Rain n/a 0.5, 2012
Maximum Rain Rate n/a 5.5, 2012
Minimum Dew Point 0.7 °C 22:19 2.4 °C 6.9 °C, 2018 -2.0 °C, 2022
Maximum Dew Point 12.5 °C 12:48 9.1 °C 12.5 °C, 2026 3.1 °C, 2022
Mean Dew Point 8.3 °C 5.6 °C 8.7 °C, 2009 0.8 °C, 2022
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 11.8 °C * 06:49 7.2 °C 11.8 °C, 2026 2.1 °C, 2022
Day Maximum (09-21) 22.1 °C 12:57 17.1 °C 25.2 °C, 2017 8.9 °C, 2013
Max 10m Temp Rise 0.6 °C 07:52 0.7 °C 0.9 °C, 2017 0.2 °C, 2012
Max 1hr Temp Rise 2.7 °C 11:05 2.5 °C 4.3 °C, 2017 0.4 °C, 2018
Max 1hr Hum Rise 10% 16:50 10% 26%, 2017 1%, 2018
Max 10m Temp Fall 1.4 °C 17:30 0.7 °C 1.4 °C, 2026 0.2 °C, 2012
Max 1hr Temp Fall 2.6 °C 15:03 2.1 °C 3.2 °C, 2017 0.6 °C, 2018
Max 1hr Hum Fall 12% 15:48 13% 19%, 2016 1%, 2018
Max 10m Wind Speed 13.7 mph 17:29 12.0 mph 17.5 mph, 2024 5.4 mph, 2010
Minimum Feels-like 4.6 °C 23:55 4.1 °C 8.1 °C, 2020 -2.0 °C, 2013
Maximum Feels-like 24.5 °C 12:48 18.0 °C 25.9 °C, 2017 8.3 °C, 2013
Mean Feels-like 15.6 °C 11.8 °C 16.4 °C, 2017 3.1 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 14.1 °C (+6.0) 10.5 °C (+2.6) 18.8 °C (+10.7), 2017 1.6 °C (-6.5), 2018
Humidity Range 39% 38% 52%, 2022 3%, 2018
Pressure Range 6 hPa 8 hPa 26 hPa, 2024 3 hPa, 2020
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours [0%]50 hrs (108%) [46%] 12.1 [100%], 2017 [0%], 2026
Wet Hours 1 hrs (7%) [0.5%] 18, 2012 , 2026
Cloud Cover not available
Events None
Comments
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature @ Hampstead Heath null
Notes
Detailed daily weather report for Hampstead nw3 in London on 9th April 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

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