Daily Report for 3rd August 2026

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 16.5 °C (+1.9) 05:53 14.8 °C (+0.2) 18.2 °C (+3.6), 2022 11.6 °C (-3.0), 2021
Maximum Temperature 31.1 °C (+7.8) 14:07 28.6 °C (+5.3) 32.2 °C (+8.9), 2018 20.4 °C (-2.9), 2023
Mean Temperature 23.7 °C (+4.9) 21.9 °C (+2.8) 24.9 °C, 2018 16.4 °C, 2021
Minimum Humidity 32% 14:40 32% 65%, 2022 32%, 2026
Maximum Humidity 78% 06:04 71% 95%, 2021 74%, 2014
Mean Humidity 56% 50% 80%, 2022 52%, 2014
Minimum Pressure 1011 hPa 19:10 1015 hPa 1021 hPa, 2018 995 hPa, 2023
Maximum Pressure 1016 hPa 00:03 1019 hPa 1024 hPa, 2018 1010 hPa, 2016
Mean Pressure 1013 hPa 1017 hPa 1023 hPa, 2018 1006 hPa, 2023
Mean Wind Speed 5.1 mph (+1.1) 4.1 mph (+0.1) 11.8 mph, 2016 1.6 mph, 2018
Maximum Wind Speed 12.6 mph 16:08 12.1 mph 24.2 mph, 2016 9.0 mph, 2019
Maximum Gust 18.4 mph 16:21 17.3 mph 38.7 mph, 2016 12.5 mph, 2019
Mean Wind Direction ESE
Rainfall 0.0 mm 0.0 mm (0%) 0.9 mm, 2013
Maximum Hourly Rain n/a 0.9, 2013
Maximum 10-min Rain n/a 0.9, 2013
Maximum Rain Rate n/a 9, 2013
Minimum Dew Point 12.2 °C 00:27 8.5 °C 15.3 °C, 2022 5.8 °C, 2014
Maximum Dew Point 16.2 °C 10:48 13.9 °C 20.1 °C, 2022 11.0 °C, 2014
Mean Dew Point 13.8 °C 10.5 °C 18.0 °C, 2022 8.3 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 16.5 °C 05:53 14.8 °C 18.3 °C, 2016 11.6 °C, 2021
Day Maximum (09-21) 31.1 °C 14:08 28.6 °C 32.2 °C, 2018 20.4 °C, 2023
Max 10m Temp Rise 0.7 °C 10:50 0.8 °C 1.0 °C, 2024 0.4 °C, 2017
Max 1hr Temp Rise 2.8 °C 07:35 3.0 °C 3.3 °C, 2011 1.2 °C, 2016
Max 1hr Hum Rise 11% 21:10 10% 16%, 2020 4%, 2017
Max 10m Temp Fall 0.8 °C 14:55 0.7 °C 1.1 °C, 2016 0.3 °C, 2010
Max 1hr Temp Fall 2.3 °C 20:25 2.4 °C 3.4 °C, 2018 1.0 °C, 2010
Max 1hr Hum Fall 10% 11:17 14% 18%, 2016 6%, 2022
Max 10m Wind Speed 9.7 mph 16:27 8.6 mph 20.1 mph, 2016 6.3 mph, 2021
Minimum Feels-like 19.0 °C 05:46 15.6 °C 22.9 °C, 2022 13.0 °C, 2009
Maximum Feels-like 34.5 °C 13:45 30.7 °C 37.0 °C, 2018 23.7 °C, 2010
Mean Feels-like 27.0 °C 23.6 °C 30.2 °C, 2018 18.7 °C, 2009
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Minimum PM2.5 5 00:52 4 5, 2026 0, 2021
Maximum PM2.5 11 23:42 9 11, 2026 11, 2026
Mean PM2.5 7 6 7, 2026 7, 2026
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 14.6 °C (+5.9) 13.8 °C (+5.1) 14.6 °C (+5.9), 2026 5.8 °C (-2.9), 2017
Humidity Range 46% 39% 54%, 2018 21%, 2025
Pressure Range 5 hPa 4 hPa 19 hPa, 2023 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 13.6 [97%]39 hrs (204%) [92%] 13.6 [97%], 2026 1 [7%], 2022
Wet Hours 00 hrs (0%) [0%] 1, 2023 0, 2009
Cloud Cover unknown
Events Maximum possible sunshine
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 22.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 3rd August 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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Wind rose