Daily Report for 18th February 2026

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 2.4 °C (-0.4) 00:40 5.1 °C (+2.3) 9.4 °C (+6.6), 2023 -0.8 °C (-3.6), 2010
Maximum Temperature 5.6 °C (-2.6) 12:21 9.0 °C (+1.0) 14.9 °C (+6.7), 2024 4.8 °C (-3.4), 2010
Mean Temperature 4.2 °C (-1.5) 6.9 °C (+1.6) 11.7 °C, 2024 2.1 °C, 2010
Minimum Humidity 66% 12:12 78% 88%, 2010 51%, 2016
Maximum Humidity 93% 23:53 93% 98%, 2010 81%, 2015
Mean Humidity 77% 87% 96%, 2010 71%, 2015
Minimum Pressure 993 hPa 23:53 992 hPa 1031 hPa, 2015 986 hPa, 2010
Maximum Pressure 1015 hPa 00:02 1002 hPa 1042 hPa, 2015 992 hPa, 2010
Mean Pressure 1004 hPa 997 hPa 1036 hPa, 2015 989 hPa, 2010
Mean Wind Speed 8.3 mph (+3.2) 5.2 mph (+0.1) 15.0 mph, 2022 1.7 mph, 2009
Maximum Wind Speed 18.0 mph 18:41 14.0 mph 44.1 mph, 2022 8.8 mph, 2017
Maximum Gust 32.3 mph 16:42 21.8 mph 63.9 mph, 2022 10.0 mph, 2009
Mean Wind Direction SE
Rainfall 5.0 mm 82.2 mm (284%) 11.6 mm, 2024
Maximum Hourly Rain 1.4 mm 19:12 4.3 mm, 2014
Maximum 10-min Rain 0.4 mm 19:12 2.1 mm, 2014
Maximum Rain Rate 2.1 mm/h 19:12 60 mm/h, 2014
Minimum Dew Point -1.8 °C 00:08 2.9 °C 7.5 °C, 2024 -4.9 °C, 2016
Maximum Dew Point 3.4 °C 23:53 6.7 °C 12.2 °C, 2024 0.2 °C, 2025
Mean Dew Point 0.6 °C 4.9 °C 10.1 °C, 2024 -1.5 °C, 2025
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 2.4 °C 00:31 5.4 °C 10.7 °C, 2023 -0.8 °C, 2010
Day Maximum (09-21) 5.6 °C 14:30 8.9 °C 14.9 °C, 2024 4.8 °C, 2010
Max 10m Temp Rise 0.2 °C 03:43 0.3 °C 1.3 °C, 2009 0.2 °C, 2017
Max 1hr Temp Rise 0.7 °C 11:01 1.0 °C 3.7 °C, 2018 0.5 °C, 2019
Max 1hr Hum Rise 8% 18:04 6% 16%, 2022 2%, 2010
Max 10m Temp Fall 0.4 °C 17:44 0.4 °C 1.7 °C, 2012 0.2 °C, 2010
Max 1hr Temp Fall 0.9 °C 18:14 1.1 °C 3.6 °C, 2012 0.7 °C, 2010
Max 1hr Hum Fall 4% 04:24 5% 13%, 2016 1%, 2010
Max 10m Wind Speed 14.4 mph 16:39 10.2 mph 29.5 mph, 2022 5.7 mph, 2010
Minimum Feels-like -2.1 °C 01:28 1.3 °C 7.5 °C, 2024 -4.0 °C, 2025
Maximum Feels-like 3.0 °C 11:38 8.7 °C 16.7 °C, 2024 3.0 °C, 2026
Mean Feels-like 0.1 °C 4.8 °C 13.0 °C, 2024 -0.2 °C, 2025
Air-frost Hrs 0 hrs 0.0 hrs 8 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.2 °C (-2.2) 3.9 °C (-1.2) 8.4 °C (+3.0), 2018 3.2 °C (-2.2), 2026
Humidity Range 27% 15% 41%, 2016 8%, 2019
Pressure Range 22 hPa 10 hPa 24 hPa, 2022 1 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]5.3 hrs (11%) [3.4%] 9 [99%], 2015 0 [0%], 2019
Wet Hours 6
[Mean rain rate: 0.8 mm/h]		82 hrs (245%) [19%] 9, 2024 , 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 5.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 18th February 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