Daily Report for 13th March 2026

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.4 °C (-0.7) 23:54 6.6 °C (+2.9) 10.6 °C (+6.5), 2024 -0.2 °C (-4.3), 2013
Maximum Temperature 11.6 °C (+1.0) 01:09 12.5 °C (+2.4) 16.7 °C (+6.1), 2014 5.8 °C (-4.8), 2013
Mean Temperature 7.5 °C (+0.1) 9.4 °C (+2.6) 12.2 °C, 2023 2.2 °C, 2013
Minimum Humidity 51% 14:57 70% 81%, 2024 37%, 2015
Maximum Humidity 91% 02:13 92% 97%, 2014 76%, 2015
Mean Humidity 74% 83% 88%, 2012 52%, 2015
Minimum Pressure 998 hPa 02:40 1014 hPa 1034 hPa, 2012 987 hPa, 2023
Maximum Pressure 1004 hPa 09:42 1022 hPa 1035 hPa, 2012 997 hPa, 2023
Mean Pressure 1001 hPa 1018 hPa 1034 hPa, 2012 991 hPa, 2023
Mean Wind Speed 8.7 mph (+3.5) 5.6 mph (+0.4) 14.2 mph, 2023 1.4 mph, 2014
Maximum Wind Speed 22.6 mph 00:19 14.2 mph 26.7 mph, 2023 6.4 mph, 2014
Maximum Gust 34.6 mph 00:54 21.6 mph 42.6 mph, 2023 8.5 mph, 2014
Mean Wind Direction W
Rainfall 9.8 mm 22.0 mm (135%) 9.8 mm, 2026
Maximum Hourly Rain 7.2 mm 02:34 7.2 mm, 2026
Maximum 10-min Rain 4.0 mm 01:57 4.0 mm, 2026
Maximum Rain Rate 36 mm/h 01:49 36 mm/h, 2026
Minimum Dew Point -0.4 °C 14:59 4.3 °C 8.6 °C, 2024 -4.3 °C, 2013
Maximum Dew Point 10.2 °C 01:48 8.8 °C 10.9 °C, 2023 -0.3 °C, 2013
Mean Dew Point 3.0 °C 6.5 °C 9.7 °C, 2024 -2.3 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 6.1 °C * 06:57 7.0 °C 11.0 °C, 2024 0.3 °C, 2013
Day Maximum (09-21) * 9.4 °C * 14:19 12.4 °C 16.7 °C, 2014 5.8 °C, 2013
Max 10m Temp Rise 0.6 °C 02:21 0.4 °C 0.9 °C, 2025 0.2 °C, 2011
Max 1hr Temp Rise 1.0 °C 12:13 1.5 °C 3.5 °C, 2014 0.8 °C, 2011
Max 1hr Hum Rise 9% 15:44 5% 20%, 2013 2%, 2024
Max 10m Temp Fall 1.2 °C 01:58 0.4 °C 2.1 °C, 2025 0.2 °C, 2024
Max 1hr Temp Fall 3.0 °C 04:15 1.3 °C 3.0 °C, 2026 0.8 °C, 2019
Max 1hr Hum Fall 7% 03:18 7% 19%, 2014 3%, 2024
Max 10m Wind Speed 17.4 mph 00:19 10.4 mph 20.9 mph, 2023 4.9 mph, 2012
Minimum Feels-like -0.8 °C 23:15 3.4 °C 11.4 °C, 2024 -4.1 °C, 2013
Maximum Feels-like 13.0 °C 01:48 13.1 °C 16.7 °C, 2014 3.7 °C, 2013
Mean Feels-like 4.7 °C 8.4 °C 13.1 °C, 2023 -0.5 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0.6 hrs, 2013 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.2 °C (+1.7) 5.9 °C (-0.5) 13.9 °C (+7.4), 2014 2.7 °C (-3.8), 2024
Humidity Range 40% 22% 58%, 2014 11%, 2024
Pressure Range 5 hPa 8 hPa 16 hPa, 2021 1 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]33 hrs (72%) [25%] 8 [76%], 2014 0 [0%], 2022
Wet Hours 4
[Mean rain rate: 2.5 mm/h]		19 hrs (85%) [6.1%] 4, 2026 , 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 7.3 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 13th 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

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Wind rose